Product Description
Basic Features of Needle Roller Bearing | |
Types | Needle Roller and Cage Assemblies Drawn Cup Needle Roller Bearings Thrust Needle Roller Bearings Needle Roller Bearings with Rings |
Material | Bearing Steel(GCr15, 100Cr6) SPCC St14 Nylon Bronze |
Dimension | Metric and Inch |
Dimension Range | 3mm~200mm(bore diameter) |
MOQ | 1 |
Delivery Time | 15-45 days |
Sea Ports | ZheJiang HangZhou HangZhou |
Why Choose HECTO?
1. More than 20 years of manufacturing and exporting experiences
2. an IATF16949 company
3. 100% inspecting of products
4. More competitive prices with better quality
5. More than 99% of delivery in time
6. Rapid response of your emails and questions
7. Products can be traced back
Needle Roller and Cage Assemblies
Shaft | Bearing No. | Boundary Dimensions(mm) | Basic Load Rating(N) | Limiting Speed | |||
Fw | Ew | Bc | Cr | Cor | Oil(RPM) | ||
3 | K3X5X7TN | 3 | 5 | 7 | 1540 | 1290 | 50000 |
K3X5X9TN | 3 | 5 | 9 | 1710 | 1480 | 48000 | |
K3X6X7TN | 3 | 6 | 7 | 1430 | 970 | 47000 | |
4 | K4X7X7TN | 4 | 7 | 7 | 2330 | 1840 | 43000 |
K4X7X10TN | 4 | 7 | 10 | 2350 | 1920 | 39000 | |
5 | K5X8X8TN | 5 | 8 | 8 | 2300 | 1880 | 37000 |
K5X8X10TN | 5 | 8 | 10 | 2800 | 2450 | 37000 | |
6 | K6X9X8TN | 6 | 9 | 8 | 2500 | 2240 | 35000 |
K6X9X10TN | 6 | 9 | 10 | 3300 | 3100 | 35000 | |
K6X10X13TN | 6 | 10 | 13 | 3500 | 2800 | 33000 | |
7 | K7X10X8TN | 7 | 10 | 8 | 2750 | 2550 | 32000 |
K7X10X10TN | 7 | 10 | 10 | 3350 | 3400 | 32000 | |
8 | K8X11X8TN | 8 | 11 | 8 | 3000 | 2900 | 30000 |
K8X11X10TN | 8 | 11 | 10 | 3830 | 3950 | 30000 | |
K8X11X13TN | 8 | 11 | 13 | 5000 | 5700 | 30000 | |
K8X12X10TN | 8 | 12 | 10 | 4900 | 4600 | 30000 | |
9 | K9X12X10TN | 9 | 12 | 10 | 4200 | 4700 | 30000 |
K9X12X13TN | 9 | 12 | 13 | 5500 | 6700 | 30000 | |
10 | K10X13X10TN | 10 | 13 | 10 | 4500 | 5250 | 27000 |
K10X13X13TN | 10 | 13 | 13 | 6000 | 7600 | 27000 | |
K10X13X16TN | 10 | 13 | 16 | 6300 | 7800 | 27000 | |
K10X14X10TN | 10 | 14 | 10 | 7000 | 7900 | 27000 | |
K10X14X13TN | 10 | 14 | 13 | 8000 | 9100 | 26000 | |
K10X16X12TN | 10 | 16 | 12 | 7000 | 9300 | 27000 | |
12 | K12X15X9TN | 12 | 15 | 9 | 4120 | 5210 | 25000 |
K12X15X10TN | 12 | 15 | 10 | 4320 | 5730 | 25000 | |
K12X15X13TN | 12 | 15 | 13 | 6000 | 8100 | 25000 | |
K12X16X8TN | 12 | 16 | 8 | 1200 | 4700 | 25000 | |
K12X16X10TN | 12 | 16 | 10 | 6000 | 6900 | 25000 | |
K12X16X13TN | 12 | 16 | 13 | 7900 | 9200 | 25000 | |
K12X17X13TN | 12 | 17 | 13 | 9300 | 10000 | 24000 | |
K12X18X12TN | 12 | 18 | 12 | 9800 | 8000 | 24000 | |
K12X15X20TN | 12 | 15 | 20 | 8200 | 12000 | 25000 | |
14 | K14X17X10 | 14 | 17 | 10 | 5100 | 6800 | 23000 |
K14X17X17 | 14 | 17 | 17 | 9300 | 14000 | 23000 | |
K14X18X10 | 14 | 18 | 10 | 6800 | 8300 | 23000 | |
K14X18X13 | 14 | 18 | 13 | 8100 | 9800 | 23000 | |
K14X18X14 | 14 | 18 | 14 | 9200 | 12000 | 23000 | |
K14X18X15 | 14 | 18 | 15 | 10000 | 13000 | 23000 | |
K14X18X17 | 14 | 18 | 17 | 10500 | 13900 | 23000 | |
K14X20X12 | 14 | 20 | 12 | 9900 | 10500 | 22000 | |
15 | K15X18X14 | 15 | 18 | 14 | 7500 | 11000 | 23000 |
K15X18X17 | 15 | 18 | 17 | 9600 | 15900 | 23000 | |
K15X19X10 | 15 | 19 | 10 | 7200 | 9000 | 22000 | |
K15X19X13 | 15 | 19 | 13 | 8300 | 9800 | 22000 | |
K15X19X17 | 15 | 19 | 17 | 10300 | 15000 | 22000 | |
K15X19X24 ZW | 15 | 19 | 24 | 12800 | 25710 | 22000 | |
K15X22X13 | 15 | 22 | 13 | 9700 | 11000 | 22000 | |
K15X22X12 | 15 | 22 | 12 | 10000 | 13000 | 22000 | |
K15X21X15 | 15 | 21 | 15 | 13800 | 16000 | 22000 | |
K15X21X21 | 15 | 21 | 21 | 18000 | 24000 | 22000 | |
16 | K16X20X10 | 16 | 20 | 10 | 7600 | 9700 | 22000 |
K16X20X13 | 16 | 20 | 13 | 8700 | 11300 | 22000 | |
K16X20X17 | 16 | 20 | 17 | 11200 | 16300 | 22000 | |
K16X21X10 | 16 | 21 | 10 | 9000 | 12000 | 22000 | |
K16X22X12 | 16 | 22 | 12 | 11000 | 12000 | 21000 | |
K16X22X13 | 16 | 22 | 13 | 12000 | 13400 | 21000 | |
K16X22X16 | 16 | 22 | 16 | 14300 | 17000 | 21000 | |
K16X22X20 | 16 | 22 | 20 | 18000 | 22300 | 21000 | |
K16X23X14 | 16 | 23 | 14 | 19000 | 21000 | 19000 | |
K16X24X20 | 16 | 24 | 20 | 21100 | 23000 | 20000 | |
17 | K17X21X10 | 17 | 21 | 10 | 7900 | 15710 | 21000 |
K17X21X13 | 17 | 21 | 13 | 10000 | 14100 | 21000 | |
K17X21X17 | 17 | 21 | 17 | 12000 | 17400 | 21000 | |
K17X23X14 | 17 | 23 | 14 | 11000 | 15000 | 21000 | |
18 | K18X22X10 | 18 | 22 | 10 | 8200 | 9900 | 20000 |
K18X22X13 | 18 | 22 | 13 | 9000 | 12100 | 20000 | |
K18X22X17 | 18 | 22 | 17 | 11900 | 17600 | 20000 | |
K18X24X12 | 18 | 24 | 12 | 11200 | 12900 | 20000 | |
K18X24X13 | 18 | 24 | 13 | 12900 | 14900 | 20000 | |
K18X24X13.5 | 18 | 24 | 13.5 | 12900 | 14900 | 20000 | |
K18X24X20 | 18 | 24 | 20 | 20000 | 26500 | 20000 | |
K18X25X14 | 18 | 25 | 14 | 16500 | 18800 | 20000 | |
K18X25X22 | 18 | 25 | 22 | 22900 | 28400 | 20000 | |
K18X26X14 | 18 | 26 | 14 | 18000 | 20000 | 18000 | |
K18X28X16 | 18 | 28 | 16 | 19000 | 18400 | 19000 | |
19 | K19X23X13 | 19 | 23 | 13 | 9300 | 13000 | 20000 |
K19X23X17 | 19 | 23 | 17 | 12000 | 18600 | 20000 | |
20 | K20X24X10 | 20 | 24 | 10 | 8700 | 12100 | 19000 |
K20X24X12 | 20 | 24 | 12 | 9600 | 13800 | 19000 | |
K20X24X13 | 20 | 24 | 13 | 9600 | 13800 | 19000 | |
K20X24X17 | 20 | 24 | 17 | 12400 | 20000 | 19000 | |
K20X26X12 | 20 | 26 | 12 | 13100 | 15700 | 19000 | |
K20X26X16 | 20 | 26 | 16 | 18000 | 25000 | 18500 | |
K20X26X17 | 20 | 26 | 17 | 18700 | 25500 | 19000 | |
K20X26X20 | 20 | 26 | 20 | 20600 | 28500 | 19000 | |
K20X28X20 | 20 | 28 | 20 | 23400 | 28000 | 18000 | |
K20X28X25 | 20 | 28 | 25 | 30000 | 28500 | 18000 | |
K20X30X30 | 20 | 30 | 30 | 35000 | 41000 | 18000 | |
21 | K21X25X13 | 21 | 25 | 13 | 9600 | 14500 | 19000 |
K21X25X17 | 21 | 25 | 17 | 12800 | 21000 | 19000 | |
22 | K22X26X10 | 22 | 26 | 10 | 8700 | 12900 | 18000 |
K22X26X13 | 22 | 26 | 13 | 10000 | 15400 | 18000 | |
K22X26X17 | 22 | 26 | 17 | 13100 | 22100 | 18000 | |
K22X27X13 | 22 | 27 | 13 | 14000 | 23000 | 18000 | |
K22X28X17 | 22 | 28 | 17 | 19000 | 26500 | 18000 | |
K22X28X23 | 22 | 28 | 23 | 20000 | 27000 | 19000 | |
K22X29X16 | 22 | 29 | 16 | 19500 | 25000 | 17000 | |
K22X30X15TN | 22 | 30 | 15 | 19600 | 22900 | 17000 | |
K22X30X20 | 22 | 30 | 20 | 21000 | 23500 | 18900 | |
K22X32X24 | 22 | 32 | 24 | 33500 | 39500 | 16000 | |
23 | K23X35X16TN | 23 | 35 | 16 | 24000 | 23400 | 15000 |
24 | K24X28X10 | 24 | 28 | 10 | 9400 | 14300 | 17000 |
K24X28X13 | 24 | 28 | 13 | 10500 | 17000 | 17000 | |
K24X28X17 | 24 | 28 | 17 | 14000 | 24500 | 17000 | |
K24X29X13 | 24 | 29 | 13 | 13100 | 19100 | 16000 | |
K24X30X17 | 24 | 30 | 17 | 19000 | 27000 | 16000 | |
K24X30X31 | 24 | 30 | 31 | 27000 | 43000 | 16000 | |
25 | K25X29X10 | 25 | 29 | 10 | 9700 | 14900 | 16000 |
K25X29X13 | 25 | 29 | 13 | 10800 | 17900 | 16000 | |
K25X29X17 | 25 | 29 | 17 | 14500 | 25500 | 16000 | |
K25X30X13 | 25 | 30 | 13 | 14100 | 21300 | 16000 | |
K25X30X20 | 25 | 30 | 20 | 21100 | 28000 | 16000 | |
K25X30X25 | 25 | 30 | 25 | 21700 | 40400 | 15000 | |
K25X30X26 | 25 | 30 | 26 | 25710 | 26500 | 15000 | |
K25X31X17 | 25 | 31 | 17 | 19000 | 28000 | 16000 | |
K25X31X21 | 25 | 31 | 21 | 24100 | 37500 | 16000 | |
K25X32X16 | 25 | 32 | 16 | 20500 | 27500 | 15000 | |
K25X33X20 | 25 | 33 | 20 | 28000 | 37500 | 15000 | |
K25X33X24 | 25 | 33 | 24 | 33900 | 46500 | 15000 | |
K25X34X18 | 25 | 34 | 18 | 48000 | 67000 | 15000 | |
K25X35X30 | 25 | 35 | 30 | 46500 | 61500 | 14000 | |
K25X30X26 ZW | 25 | 30 | 26 | 21000 | 35000 | 14000 | |
26 | K26X30X10 | 26 | 30 | 10 | 9500 | 15500 | 16000 |
K26X30X13 | 26 | 30 | 13 | 11100 | 18700 | 16000 | |
K26X30X17 | 26 | 30 | 17 | 14700 | 27000 | 16000 | |
K26X31X13 | 26 | 31 | 13 | 12400 | 18400 | 15000 | |
K26X30X22 | 26 | 30 | 22 | 15200 | 28000 | 16000 | |
27 | K27X32X17 | 27 | 32 | 27 | 16000 | 34000 | 17000 |
28 | K28X32X16.5 | 28 | 32 | 16.5 | 15000 | 32400 | 14000 |
K28X32X17 | 28 | 32 | 17 | 15000 | 32400 | 14000 | |
K28X33X13 | 28 | 33 | 13 | 14800 | 23600 | 14000 | |
K28X33X17 | 28 | 33 | 17 | 19100 | 33000 | 14000 | |
K28X33X27 TN | 28 | 33 | 27 | 22800 | 40500 | 14000 | |
K28X34X17 | 28 | 34 | 17 | 21300 | 35000 | 14000 | |
K28X35X16 | 28 | 35 | 16 | 21000 | 29000 | 14000 | |
K28X35X18 | 28 | 35 | 18 | 23500 | 33500 | 14000 | |
K28X35X20 | 28 | 35 | 20 | 24000 | 34000 | 14000 | |
K28X35X27 | 28 | 35 | 27 | 34500 | 54500 | 14000 | |
K28X36X16 | 28 | 36 | 16 | 34000 | 47000 | 11000 | |
K28X40X18 | 28 | 40 | 18 | 33000 | 36500 | 12000 | |
K28X40X25 | 28 | 40 | 25 | 45000 | 54500 | 12000 | |
30 | K30X33X10 | 30 | 33 | 10 | |||
K30X34X13 | 30 | 34 | 13 | 11800 | 21200 | 13000 | |
K30X35X13 | 30 | 35 | 13 | 15100 | 25000 | 13000 | |
K30X35X17 | 30 | 35 | 17 | 19100 | 33500 | 13000 | |
K30X35X26 | 30 | 35 | 26 | ||||
K30X35X27 | 30 | 35 | 27 | 30000 | 58500 | 13000 | |
K30X37X16 | 30 | 37 | 16 | 22500 | 33000 | 13000 | |
K30X38X25 | 30 | 38 | 25 | 16000 | 390000 | 13000 | |
K30X39X21 | 30 | 39 | 21 | ||||
K30X40X18 | 30 | 40 | 18 | 31500 | 39500 | 12000 | |
K30X40X27 | 30 | 40 | 27 | ||||
K30X40X30 | 30 | 40 | 30 | 48500 | 68500 | 13000 | |
K30X35X26 | 30 | 35 | 26 | 23500 | 43500 | 12000 | |
K30X42X44.1 | 30 | 42 | 44.1 | ||||
32 | K32X37X13 | 32 | 37 | 13 | 15000 | 25000 | 12000 |
K32X37X17 | 32 | 37 | 17 | 19400 | 35000 | 12000 | |
K32X37X27 | 32 | 37 | 27 | 29500 | 59500 | 12000 | |
K32X37X28 TN | 32 | 37 | 28 | 23100 | 43000 | 12000 | |
K32X38X16 | 32 | 38 | 16 | 21000 | 34000 | 12000 | |
K32X38X20 | 32 | 38 | 20 | 26000 | 44500 | 12000 | |
K32X38X26 TN | 32 | 38 | 26 | 27000 | 46500 | 12000 | |
K32X39X16 | 32 | 39 | 16 | 23500 | 35000 | 12000 | |
K32X39X18 | 32 | 39 | 18 | 26000 | 40500 | 12000 | |
K32X40X20 | 32 | 40 | 20 | 37000 | 40500 | 12000 | |
K32X40X36 | 32 | 40 | 36 | 53500 | 91500 | 12000 | |
K32X46X32 | 32 | 46 | 32 | 65500 | 82500 | 11000 | |
K32X40X42 TN | 32 | 40 | 42 | 49500 | 83500 | 12000 | |
35 | K35X40X13 | 35 | 40 | 13 | 15800 | 27500 | 11000 |
K35X40X17 | 35 | 40 | 17 | 20300 | 38000 | 11000 | |
K35X40X25 | 35 | 40 | 25 | 29000 | 59500 | 11000 | |
K35X40X27 TN | 35 | 40 | 27 | 24500 | 48000 | 11000 | |
K35X40X27 | 35 | 40 | 27 | 27800 | 62100 | 11000 | |
K35X40X30 | 35 | 40 | 30 | 25000 | 49500 | 11000 | |
K35X42X16 | 35 | 42 | 16 | 23900 | 37000 | 11000 | |
K35X42X18 | 35 | 42 | 18 | 27000 | 42500 | 11000 | |
K35X42X30 | 35 | 42 | 30 | 38500 | 67500 | 11000 | |
K35X43X18 | 35 | 43 | 18 | 28000 | 41500 | 11000 | |
K35X45X20 | 35 | 45 | 20 | 36500 | 49500 | 10000 | |
K35X45X30 | 35 | 45 | 30 | 52500 | 78500 | 10000 | |
K35X45X49 | 35 | 45 | 49 | 81500 | 13400 | 10000 | |
K35X40X30 ZW | 35 | 40 | 30 | 31500 | 65500 | 11000 | |
K35X42X20 ZW | 35 | 42 | 20 | 29500 | 48500 | 11000 | |
36 | K36X41X30 | 36 | 41 | 30 | 23000 | 43000 | 11000 |
K36X42X16 | 36 | 42 | 16 | 24000 | 42000 | 11000 | |
37 | K37X42X17 | 37 | 42 | 17 | 21900 | 42500 | 10000 |
K37X42X27 | 37 | 42 | 27 | 31500 | 67500 | 10000 | |
K37X45X26 | 37 | 45 | 26 | 43500 | 73500 | 10000 | |
38 | K38X43X17 | 38 | 43 | 17 | 20000 | 38000 | 10000 |
K38X43X27 | 38 | 43 | 27 | 31000 | 67500 | 10000 | |
K38X46X20 | 38 | 46 | 20 | 35000 | 56500 | 10000 | |
K38X46X32 | 38 | 46 | 32 | 54500 | 98500 | 10000 | |
39 | K39X44X24 | 39 | 44 | 24 | 28000 | 58500 | 10000 |
K39X44X26 ZW | 39 | 44 | 26 | 27000 | 55500 | 10000 | |
40 | K40X44X13 | 40 | 44 | 13 | 13500 | 28000 | 10000 |
K40X45X13 | 40 | 45 | 13 | 17100 | 32000 | 10000 | |
K40X45X17 | 40 | 45 | 17 | 20900 | 41000 | 10000 | |
K40X45X21 | 40 | 45 | 21 | 24400 | 49500 | 10000 | |
K40X45X27 | 40 | 45 | 27 | 32500 | 72500 | 10000 | |
K40X46X17 | 40 | 46 | 17 | 24500 | 44500 | 9000 | |
K40X47X18 | 40 | 47 | 18 | 29000 | 49500 | 9000 | |
K40X47X20 | 40 | 47 | 20 | 32000 | 56500 | 9000 | |
K40X48X20 | 40 | 48 | 20 | 35500 | 58500 | 9000 | |
K40X45X30 ZW | 40 | 45 | 30 | 26000 | 53500 | 9000 | |
42 | K42X47X13 | 42 | 47 | 13 | 17300 | 33000 | 9000 |
K42X47X17 | 42 | 47 | 17 | 21100 | 42500 | 9000 | |
K42X47X25 TN | 42 | 47 | 25 | 27000 | 57500 | 9000 | |
K42X47X27 | 42 | 47 | 27 | 33000 | 74500 | 9000 | |
K42X48X35 | 42 | 48 | 35 | 35000 | 76000 | 9000 | |
K42X50X18 | 42 | 50 | 18 | 31000 | 49500 | 9000 | |
K42X50X20 | 42 | 50 | 20 | 34500 | 56500 | 9000 | |
K42X47X30 ZW | 42 | 47 | 30 | 31000 | 75500 | 9000 | |
43 | K43X48X17 | 43 | 48 | 17 | 21000 | 42500 | 9000 |
K43X48X27 | 43 | 48 | 27 | 33000 | 74500 | 9000 | |
K43X50X18 | 43 | 50 | 18 | 30500 | 53500 | 8000 | |
45 | K45X49X19 | 45 | 49 | 19 | 17500 | 40000 | 8000 |
K45X50X17 | 45 | 50 | 17 | 22000 | 45000 | 8000 | |
K45X50X27 | 45 | 50 | 27 | 34000 | 79500 | 8000 | |
K45X50X32 TN | 45 | 50 | 32 | 38000 | 90500 | 8000 | |
K45X52X18 | 45 | 52 | 18 | 31000 | 56500 | 8000 | |
K45X52X21 TN | 45 | 52 | 21 | 39500 | 57500 | 8000 | |
K45X53X20 | 45 | 53 | 20 | 38500 | 66500 | 8000 | |
K45X53X21 | 45 | 53 | 21 | 38000 | 66500 | 8000 | |
K45X53X22 | 45 | 53 | 22 | 42000 | 66500 | 8000 | |
K45X53X28 | 45 | 53 | 28 | 51500 | 97500 | 8000 | |
K45X59X18 TN | 45 | 59 | 18 | 43500 | 53500 | 7000 | |
K45X59X32 | 45 | 59 | 32 | 72500 | 101500 | 7000 | |
K45X59X36 | 45 | 59 | 36 | 75500 | 108500 | 7000 | |
K45X51X36 ZW | 45 | 51 | 36 | 44500 | 98500 | 7000 | |
47 | K47X52X17 | 47 | 52 | 17 | 22800 | 48500 | 8000 |
K47X52X27 | 47 | 52 | 27 | 34500 | 82500 | 8000 | |
K47X53X25 | 47 | 53 | 25 | 38000 | 81500 | 8000 | |
K47X55X28 | 47 | 55 | 28 | 52500 | 99500 | 7500 | |
48 | K48X54X19 | 48 | 54 | 19 | 30000 | 60500 | 7500 |
K48X54X25 | 48 | 54 | 25 | 31000 | 91000 | 7500 | |
50 | K50X55X13.5 | 50 | 55 | 13.5 | 17500 | 36000 | 7500 |
K50X55X17 | 50 | 55 | 17 | 21400 | 46500 | 7500 | |
K50X55X20 | 50 | 55 | 20 | 26000 | 59500 | 7500 | |
K50X55X30 | 50 | 55 | 30 | 38500 | 96500 | 7500 | |
K50X57X18 | 50 | 57 | 18 | 33000 | 62500 | 7000 | |
K50X58X20 | 50 | 58 | 20 | 35000 | 61500 | 7000 | |
K50X58X25 | 50 | 58 | 25 | 43500 | 80500 | 7000 | |
52 | K52X57X12 | 52 | 57 | 12 | 17500 | 36000 | 7000 |
55 | K55X60X20 | 55 | 60 | 20 | 28000 | 65500 | 6500 |
K55X60X27 | 55 | 60 | 27 | 37500 | 96500 | 6500 | |
K55X60X30 | 55 | 60 | 30 | 40500 | 10300 | 6500 | |
K55X61X20 | 55 | 61 | 20 | 41000 | 11000 | 6500 | |
K55X62X18 | 55 | 62 | 18 | 35000 | 69500 | 6500 | |
K55X63X15 | 55 | 63 | 15 | 245000 | 40500 | 6500 | |
K55X63X20 | 55 | 63 | 20 | 39500 | 73500 | 6500 | |
K55X63X25 | 55 | 63 | 25 | 49500 | 99500 | 6500 | |
K55X63X32 | 55 | 63 | 32 | 61500 | 129500 | 6500 | |
K55X60X40ZW | 55 | 60 | 40 | 48000 | 132000 | 6500 | |
56 | K56X61X20 | 56 | 61 | 20 | 27000 | 64500 | 6500 |
58 | K58X63X17 | 58 | 63 | 17 | 21500 | 63500 | 6000 |
K58X64X19 | 58 | 64 | 19 | 24500 | 77500 | 6000 | |
K58X65X18 | 58 | 65 | 18 | 34500 | 69500 | 6000 | |
K58X65X38ZW | 58 | 65 | 38 | 48500 | 106500 | 6000 | |
60 | K60X65X20 | 60 | 65 | 20 | 29000 | 71500 | 6000 |
K60X65X30 | 60 | 65 | 30 | 42000 | 115500 | 6000 | |
K60X68X20 | 60 | 68 | 20 | 43000 | 84500 | 5500 | |
K60X68X23 | 60 | 68 | 23 | 49000 | 100500 | 5500 | |
K60X68X25 | 60 | 68 | 25 | 52500 | 110500 | 5500 | |
K60X68X27 | 60 | 68 | 27 | 59000 | 120500 | 6000 | |
K60X75X42 | 60 | 75 | 42 | 11300 | 19200 | 5500 | |
K60X66X33ZW | 60 | 66 | 33 | 45500 | 111500 | 6000 | |
K60X66X40ZW | 60 | 66 | 40 | 57500 | 150500 | 5500 | |
K60X68X30ZW | 60 | 68 | 30 | 44000 | 87500 | 5500 | |
K60X68X34ZW | 60 | 68 | 34 | 47500 | 95500 | 5500 | |
62 | K62X70X40ZW | 62 | 70 | 40 | 65500 | 145500 | 5500 |
63 | K63X70X21 | 63 | 70 | 21 | 45000 | 100500 | 5500 |
64 | K47X70X16 | 64 | 70 | 16 | 27500 | 59500 | 5500 |
65 | K65X70X20 | 65 | 70 | 20 | 30000 | 76500 | 5500 |
K65X70X30 | 65 | 70 | 30 | 43500 | 93500 | 5500 | |
K65X73X23 | 65 | 73 | 23 | 45500 | 93500 | 5000 | |
K65X73X30 | 65 | 73 | 30 | 56500 | 122500 | 5000 | |
68 | K68X74X20 | 68 | 74 | 20 | 35000 | 83500 | 5000 |
K68X74X30 | 68 | 74 | 30 | 46000 | 117500 | 5000 | |
K68X74X35 ZW | 68 | 74 | 35 | 48000 | 124500 | 5000 | |
K68X75X20 | 68 | 75 | 32 | 53500 | 127500 | 4500 | |
70 | K70X76X20 | 70 | 76 | 20 | 35500 | 85500 | 4500 |
K70X76X30 | 70 | 76 | 30 | 51500 | 138500 | 4500 | |
K70X78X25 | 70 | 78 | 25 | 51500 | 111500 | 4500 | |
K70X78X30 | 70 | 78 | 30 | 59500 | 134500 | 4500 | |
K70X80X30 | 70 | 80 | 30 | 72500 | 147500 | 4500 | |
K70X78X46 ZW | 70 | 78 | 46 | 77500 | 18800 | 4500 | |
72 | K72X80X20 | 80 | 20 | 41000 | 84500 | 4500 | |
73 | K73X79X20 | 73 | 79 | 20 | 36500 | 99500 | 4500 |
75 | K75X81X20 | 75 | 81 | 20 | 37000 | 93500 | 4500 |
K75X81X30 | 75 | 81 | 30 | 51500 | 142000 | 4500 | |
K75X83X23 | 75 | 83 | 23 | 49500 | 108000 | 4000 | |
K75X83X30 | 75 | 83 | 30 | 91500 | 142000 | 4000 | |
K75X83X35 ZW | 75 | 83 | 35 | 62500 | 146500 | 4000 | |
K75X83X40 ZW | 75 | 83 | 40 | 72500 | 176500 | 4000 | |
80 | K80X86X20 | 80 | 86 | 20 | 38000 | 97500 | 4000 |
K80X86X30 | 80 | 86 | 30 | 55500 | 158500 | 4000 | |
K80X88X30 | 80 | 88 | 30 | 71500 | 178500 | 4000 | |
K80X88X40 ZW | 80 | 88 | 40 | 75500 | 191500 | 4000 | |
K80X88X46 ZW | 80 | 88 | 46 | 87500 | 23000 | 4000 | |
85 | K85X92X20 | 85 | 92 | 20 | 44000 | 15710 | 3500 |
90 | K90X97X20 | 90 | 97 | 20 | 44500 | 112500 | 3000 |
K90X98X27 | 90 | 98 | 27 | 60500 | 149500 | 3000 | |
K90X98X30 | 90 | 98 | 30 | 67500 | 171500 | 3000 | |
95 | K95X102X20 | 95 | 102 | 20 | 45500 | 122500 | 2900 |
K95X103X30 ZW | 95 | 103 | 30 | 68500 | 179500 | 2900 | |
K95X103X40 ZW | 95 | 103 | 40 | 82500 | 227500 | 2900 | |
100 | K100X107X21 | 100 | 107 | 21 | 47500 | 126500 | 2700 |
K100X108X27 | 100 | 108 | 27 | 56500 | 142500 | 2700 | |
K100X108X30 | 100 | 108 | 30 | 70500 | 187500 | 2700 | |
105 | K105X112X21 | 105 | 112 | 21 | 47000 | 126500 | 2500 |
K105X113X30 | 105 | 113 | 30 | 71500 | 196500 | 2500 | |
110 | K110X117X24 | 110 | 117 | 24 | 55500 | 157500 | 2300 |
K110X118X30 | 110 | 118 | 30 | 77500 | 218500 | 2300 | |
115 | K115X123X27 | 115 | 123 | 27 | 63000 | 170000 | 4100 |
K115X125X35 | 115 | 125 | 35 | 63000 | 170000 | 4100 | |
K115X125X40 | 115 | 125 | 40 | 65000 | 175000 | 4100 |
Drawn Cup Needle Roller Bearings(Metric and Inch)
Bearing No. | Boundary Dimensions(mm) | Basic Load Ratings(N) | Limiting Speed | ||||
HK | BK | Fw | D | C | Cr | Cor | Oil(RPM) |
HK0306TN | BK0306TN | 3 | 6.5 | 6 | 1320 | 950 | 60000 |
HK0408TN | BK0408TN | 4 | 8 | 8 | 1540 | 1070 | 40000 |
HK0509 | BK0509 | 5 | 9 | 9 | 2200 | 1790 | 36000 |
HK0608 | – | 6 | 10 | 8 | 1830 | 1550 | 32000 |
HK0609 | BK0609 | 6 | 10 | 9 | 2650 | 2400 | 30000 |
HK0708 | – | 7 | 11 | 8 | 2800 | 2150 | 27000 |
HK0709 | BK0709 | 7 | 11 | 9 | 2800 | 2150 | 27000 |
HK0808 | BK0808 | 8 | 12 | 8 | 2550 | 2400 | 21000 |
HK571 | BK571 | 8 | 12 | 10 | 3700 | 3450 | 21000 |
HK08×14×10 | – | 8 | 14 | 10 | 3800 | 3950 | 25000 |
HK08×14×12 | – | 8 | 14 | 12 | 4100 | 4320 | 25000 |
HK571 | BK571 | 9 | 13 | 10 | 4050 | 4250 | 25000 |
HK571 | – | 9 | 13 | 12 | 5000 | 6000 | 25000 |
HK1571 | BK1571 | 10 | 14 | 10 | 3900 | 4800 | 19000 |
HK1012 | BK1012 | 10 | 14 | 10 | 5000 | 6300 | 19000 |
HK1015 | – | 10 | 14 | 15 | 6700 | 7800 | 19000 |
HK10×16×10 | – | 10 | 16 | 10 | 6800 | 8800 | 18000 |
HK10×16×12 | – | 10 | 16 | 12 | 6800 | 8800 | 18000 |
HK10×16×15 | – | 10 | 16 | 15 | 6800 | 8800 | 19000 |
HK1210 | BK1210 | 12 | 16 | 10 | 4150 | 5800 | 19000 |
HK1212 | BK1212 | 12 | 18 | 12 | 3800 | 5100 | 15000 |
HK12×17×12 | – | 12 | 17 | 12 | 5100 | 7000 | 15000 |
HK12×17×15 | – | 12 | 17 | 15 | 5100 | 7000 | 15000 |
HK12×17×18 | – | 12 | 17 | 18 | 5100 | 7000 | 15000 |
HK12×18×12 | BK12×18×12 | 12 | 18 | 12 | 550 | 6300 | 17000 |
HK1312 | BK1312 | 13 | 19 | 12 | 6200 | 7100 | 17000 |
HK13.5×20×12 | – | 13.5 | 20 | 12 | 6250 | 7590 | 16000 |
HK1412 | – | 14 | 20 | 12 | 6800 | 7500 | 14000 |
HK1416 | – | 14 | 20 | 16 | 7300 | 9000 | 14000 |
HK15×20×12 | – | 15 | 20 | 12 | 5800 | 6000 | 14000 |
HK15×20×16 | – | 15 | 20 | 16 | 6000 | 6200 | 14000 |
HK15×20×20 | – | 15 | 20 | 20 | 6100 | 6400 | 14000 |
HK1512 | BK1512 | 15 | 21 | 12 | 7000 | 8400 | 14000 |
HK1514 | – | 15 | 21 | 14 | 8500 | 10400 | 13000 |
HK1515 | – | 15 | 21 | 15 | 9100 | 11400 | 13000 |
HK1516 | BK1516 | 15 | 21 | 16 | 9800 | 11400 | 14000 |
HK1522 | – | 15 | 21 | 22 | 10400 | 16500 | 14000 |
HK15×22×12 | – | 15 | 22 | 12 | 14300 | 18400 | 13000 |
HK1612 | BK1612 | 16 | 22 | 12 | 7100 | 9200 | 14000 |
HK1614 | – | 16 | 22 | 14 | 8800 | 9900 | 12000 |
HK1616 | BK1616 | 16 | 22 | 16 | 15710 | 14300 | 14000 |
HK1622 | – | 16 | 22 | 22 | 11100 | 17400 | 14000 |
HK1712 | – | 17 | 23 | 12 | 6900 | 9300 | 13000 |
HK1714 | – | 17 | 23 | 14 | 6800 | 15710 | 10000 |
HK1716 | – | 17 | 23 | 16 | 8500 | 12500 | 10000 |
HK1718 | – | 17 | 23 | 18 | 9500 | 10600 | 10000 |
HK17×25×14 | – | 17 | 25 | 14 | 13100 | 147000 | 10000 |
HK17×25×18 | – | 17 | 25 | 18 | 9500 | 10600 | 11000 |
HK1812 | – | 18 | 24 | 12 | 7100 | 9900 | 12000 |
HK1816 | BK1816 | 18 | 24 | 16 | 10600 | 15300 | 12000 |
HK2571 | – | 20 | 26 | 10 | 5900 | 7200 | 10000 |
HK2014 | – | 20 | 26 | 14 | 9700 | 18100 | 9000 |
HK2016 | BK2016 | 20 | 26 | 16 | 11700 | 29100 | 10000 |
HK2018 | – | 20 | 26 | 18 | 7900 | 12800 | 9000 |
HK2571 | – | 20 | 26 | 20 | 13700 | 24000 | 10000 |
HK2030 | – | 20 | 26 | 30 | 21800 | 40000 | 15710 |
HK20×27×20 | – | 20 | 27 | 20 | 26300 | 47800 | 9900 |
HK2210 | – | 22 | 28 | 10 | 7200 | 9500 | 1571 |
HK2212 | BK2212 | 22 | 28 | 12 | 8100 | 10400 | 1571 |
HK22×29×30 | – | 22 | 29 | 30 | 19400 | 33100 | 9000 |
HK2512 | BK2512 | 25 | 32 | 12 | 10000 | 14200 | 9000 |
HK2525 | BK2525 | 25 | 32 | 25 | 22200 | 36700 | 9000 |
HK2816 | BK2816 | 28 | 35 | 16 | 15400 | 22500 | 8700 |
HK2820 | BK2820 | 28 | 35 | 20 | 18900 | 32000 | 8700 |
HK3012 | BK3012 | 30 | 37 | 12 | 15710 | 16200 | 8100 |
HK3571 | BK3571 | 30 | 37 | 20 | 19700 | 33500 | 8100 |
HK3224 | – | 32 | 39 | 24 | 25500 | 5200 | 7300 |
HK3516 | BK3516 | 35 | 42 | 16 | 15700 | 27500 | 7100 |
HK4012 | BK4012 | 40 | 47 | 12 | 14000 | 24300 | 6300 |
HK4512 | BK4512 | 45 | 52 | 12 | 12900 | 22500 | 5800 |
HK5571 | BK5571 | 50 | 58 | 20 | 28000 | 60000 | 5300 |
HK6012 | BK6012 | 60 | 68 | 12 | 12400 | 29000 | 4100 |
SCE | BCE | Fw | D | C | Cr | Cor | Oil(RPM) |
SCE44 | BCE44 | 6.35 | 11.112 | 6.35 | 1602 | 1157 | 35000 |
SCE45 | BCE45 | 6.35 | 11.112 | 7.94 | 2536 | 2092 | 35000 |
SCE55 | BCE55 | 7.938 | 12.7 | 7.94 | 2892 | 2625 | 29000 |
SCE65 | BCE65 | 9,525 | 14.288 | 7.94 | 2892 | 2417 | 25000 |
SCE67 | BCE67 | 9,525 | 14.288 | 11.11 | 4361 | 4583 | 25000 |
SCE87 | BCE87 | 12.7 | 17.462 | 11.11 | 5918 | 7387 | 19000 |
SCE88 | BCE88 | 12.7 | 17.462 | 12.7 | 6897 | 9033 | 19000 |
SCE810 | BCE810 | 12.7 | 17.462 | 15.88 | 8811 | 12237 | 19000 |
SCE95 | BCE95 | 14.288 | 19.05 | 7.94 | 4049 | 4717 | 18000 |
SCE96 | BCE96 | 14.288 | 19.05 | 9.52 | 5162 | 6408 | 18000 |
SCE98 | BCE98 | 14.288 | 19.05 | 12.7 | 7698 | 1 0571 | 18000 |
SCE910 | BCE910 | 14.288 | 19.05 | 15.88 | 9434 | 14017 | 18000 |
SCE912 | BCE912 | 14.288 | 19.05 | 19.05 | 1571 | 16465 | 18000 |
SCE108 | BCE108 | 15.875 | 20.638 | 12.7 | 8743 | 12015 | 16000 |
SCE1571 | BCE1571 | 15.875 | 20.638 | 15.88 | 10368 | 16242 | 16000 |
SCE1012 | BCE1012 | 15.875 | 20.638 | 19.05 | 12015 | 19802 | 16000 |
SCE116 | BCE116 | 17.462 | 22.225 | 9.52 | 5740 | 7976 | 15000 |
SCE1210 | BCE1210 | 19.05 | 25.4 | 15.88 | 12682 | 17577 | 13000 |
SCE1212 | BCE1212 | 19.05 | 25.4 | 19.05 | 15352 | 22250 | 13000 |
SCE1312 | BCE1312 | 20.638 | 26.988 | 19.05 | 16571 | 23585 | 12000 |
SCE148 | BCE148 | 22.225 | 28.575 | 12.7 | 11125 | 15797 | 11000 |
SCE1412 | BCE1412 | 22.225 | 28.575 | 19.05 | 16910 | 27145 | 11000 |
SCE1516 | BCE1516 | 23.812 | 30.162 | 25.4 | 24030 | 43165 | 11000 |
SCE168 | BCE168 | 25.4 | 31.72 | 12.7 | 12682 | 19135 | 10000 |
SCE1612 | BCE1612 | 25.4 | 31.72 | 19.05 | 18571 | 30260 | 10000 |
SCE1616 | BCE1616 | 25.4 | 31.72 | 25.4 | 24920 | 45390 | 10000 |
SCE188 | BCE188 | 28.575 | 34.925 | 12.7 | 12905 | 25717 | 9000 |
SCE1812 | BCE1812 | 28.575 | 34.925 | 19.05 | 18912 | 33375 | 9000 |
SCE1816 | BCE1816 | 28.575 | 34.925 | 25.4 | 25810 | 49395 | 9000 |
SCE2012 | BCE2012 | 31.75 | 38.1 | 19.05 | 21137 | 39605 | 8000 |
SCE2016 | BCE2016 | 31.75 | 38.1 | 25.4 | 27145 | 54735 | 8000 |
SCE2212 | BCE2212 | 34.925 | 41.275 | 19.05 | 21360 | 42750 | 7500 |
SCE2216 | BCE2216 | 34.925 | 41.275 | 25.4 | 27590 | 59185 | 7500 |
SCE2416 | BCE2416 | 38.1 | 47.625 | 25.4 | 38715 | 66305 | 6500 |
SCE2816 | BCE2816 | 44.45 | 53.975 | 25.4 | 41385 | 75650 | 6000 |
SCE3220 | BCE3220 | 50.8 | 60.325 | 31.75 | 55180 | 115700 | 5000 |
Thrust Needle Roller Bearings(Metric and Inch)
Bearing No. | Boundary Dimensions(mm) | Basic Load Ratings(N) | Limiting Speed | |||
Dc1 | Dc | Dw | Ca | Coa | Oil(RPM) | |
AXK571TN | 4 | 14 | 2 | 4450 | 8000 | 18000 |
AXK571TN | 5 | 15 | 2 | 4750 | 9200 | 17000 |
AXK0619TN | 6 | 19 | 2 | 6800 | 15500 | 16000 |
AXK0821TN | 8 | 21 | 2 | 7800 | 19400 | 15000 |
AXK1571 | 10 | 24 | 2 | 9200 | 25500 | 14000 |
AXK1226 | 12 | 26 | 2 | 9900 | 29000 | 13000 |
AXK1528 | 15 | 28 | 2 | 11300 | 36000 | 11000 |
AXK1730 | 17 | 30 | 2 | 11900 | 39500 | 10000 |
AXK2035 | 20 | 35 | 2 | 13100 | 46500 | 8500 |
AXK2542 | 25 | 42 | 2 | 14700 | 58000 | 7000 |
AXK3047 | 30 | 47 | 2 | 16300 | 70000 | 6000 |
AXK3552 | 35 | 52 | 2 | 17800 | 81000 | 5500 |
AXK4060 | 40 | 60 | 3 | 28000 | 114000 | 4700 |
AXK4565 | 45 | 65 | 3 | 30000 | 128000 | 4300 |
AXK5070 | 50 | 70 | 3 | 32000 | 143000 | 3900 |
AXK5578 | 55 | 78 | 3 | 38000 | 186000 | 3500 |
AXK6085 | 60 | 85 | 3 | 44500 | 234000 | 3200 |
AXK6590 | 65 | 90 | 3 | 46500 | 255000 | 3000 |
AXK7095 | 70 | 95 | 4 | 54000 | 255000 | 2900 |
AXK75100 | 75 | 100 | 4 | 55000 | 265000 | 2700 |
AXK85715 | 80 | 105 | 4 | 56000 | 280000 | 2600 |
AXK85110 | 85 | 110 | 4 | 58000 | 290000 | 2400 |
AXK90120 | 90 | 120 | 4 | 73000 | 405000 | 2300 |
AXK100135 | 100 | 135 | 4 | 91000 | 560000 | 2000 |
AXK110145 | 110 | 145 | 4 | 97000 | 620000 | 1900 |
AXK120155 | 120 | 155 | 4 | 157100 | 680000 | 1700 |
AXK130170 | 130 | 170 | 5 | 133000 | 840000 | 1600 |
AXK140180 | 140 | 180 | 5 | 138000 | 900000 | 1500 |
AXK150190 | 150 | 190 | 5 | 143000 | 960000 | 1400 |
AXK165710 | 160 | 200 | 5 | 148000 | 1571000 | 1300 |
NTA411 | 6.35 | 17.45 | 1.984 | 4100 | 9100 | 28000 |
NTA512 | 7.93 | 19.05 | 1.984 | 4600 | 11100 | 25000 |
NTA613 | 9.52 | 20.63 | 1.984 | 4800 | 12100 | 23000 |
NTA815 | 12.7 | 23.8 | 1.984 | 5700 | 16200 | 19000 |
NTA916 | 14.27 | 25.4 | 1.984 | 6200 | 18200 | 18000 |
NTA1018 | 15.88 | 28.58 | 1.984 | 7000 | 22500 | 16000 |
NTA1220 | 19.05 | 31.75 | 1.984 | 7800 | 27000 | 14000 |
NTA1423 | 22.23 | 36.51 | 1.984 | 10400 | 40900 | 12000 |
NTA1625 | 25.4 | 39.68 | 1.984 | 10700 | 43900 | 11000 |
NTA1828 | 28.58 | 44.45 | 1.984 | 13500 | 60900 | 9800 |
NTA2031 | 31.75 | 49.21 | 1.984 | 16400 | 80900 | 8800 |
NTA2233 | 34.92 | 52.38 | 1.984 | 17400 | 89400 | 8200 |
NTA2435 | 38.1 | 55.56 | 1.984 | 18900 | 157100 | 7700 |
NTA2840 | 44.45 | 63.5 | 1.984 | 20600 | 119600 | 6900 |
NTA3244 | 50.8 | 69.85 | 1.984 | 19500 | 115200 | 6200 |
NTA3446 | 53.98 | 73.02 | 1.984 | 19900 | 119600 | 5900 |
NTA3648 | 57.15 | 76.2 | 1.984 | 25710 | 123600 | 5700 |
NTA3650 | 57.15 | 79.38 | 3.175 | 32900 | 168100 | 5300 |
NTA4052 | 63.5 | 82.55 | 1.984 | 20700 | 132100 | 5200 |
NTA4458 | 69.85 | 92.08 | 3.175 | 41700 | 242400 | 4600 |
NTA4860 | 76.2 | 95.25 | 1.984 | 21900 | 149400 | 4500 |
NTA5266 | 82.55 | 104.78 | 3.175 | 44900 | 279700 | 4000 |
NTA6074 | 95.25 | 117.48 | 3.175 | 48900 | 326400 | 3500 |
NTA6681 | 104.78 | 128.58 | 3.175 | 55600 | 395400 | 3200 |
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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Can you Explain the Concept of Axial and Radial Load Capacity in Slewing Bearings?
The axial and radial load capacities are fundamental parameters that define the ability of slewing bearings to withstand different types of loads along different directions. Here’s an explanation of these concepts:
- Axial Load Capacity:
The axial load capacity of a slewing bearing refers to its ability to withstand loads that act parallel to the axis of rotation. In other words, it’s the maximum force that can be applied along the vertical or horizontal axis without causing significant deformation or failure of the bearing components.
For example, in applications where the bearing supports vertical loads like those encountered in cranes or excavators, the axial load capacity is crucial to ensure the stability and safety of the equipment. Slewing bearings designed for high axial load capacities have sturdy components and optimized raceway profiles to distribute the load evenly and prevent stress concentrations.
- Radial Load Capacity:
The radial load capacity of a slewing bearing pertains to its ability to withstand loads that act perpendicular to the axis of rotation. These loads are directed toward or away from the center of the bearing. Radial loads can result from weight, force, or moments acting perpendicular to the axis of rotation.
For instance, in applications involving cantilevered structures, the radial load capacity is essential to support the bending moments and forces applied to the bearing. Slewing bearings with high radial load capacities are designed to handle these loads without excessive deformation, minimizing wear and maintaining operational integrity.
- Combined Load Situations:
Real-world applications often involve combinations of axial and radial loads. Slewing bearings must be selected and designed to handle these combined loads effectively. Engineers consider both axial and radial load capacities to ensure that the bearing can safely operate under the expected loading conditions.
Manufacturers provide load rating charts and data that specify the maximum axial and radial loads a slewing bearing can handle. Engineers use this information to make informed decisions about bearing selection for various applications.
In summary, the axial and radial load capacities of slewing bearings are essential parameters that determine their ability to withstand specific types of loads in various directions. Proper consideration of these capacities ensures safe and reliable operation in diverse applications.
How does Preload Affect the Performance and Stability of Slewing Bearings?
Preload is a critical factor that can significantly impact the performance and stability of slewing bearings. It involves applying a controlled axial force to the bearing components before assembly. Here’s how preload affects slewing bearings:
- Reduced Internal Clearance:
Applying preload reduces the internal clearance between the rolling elements and raceways. This minimizes play or clearance in the bearing, enhancing its rigidity and reducing the potential for rolling element skidding during operation.
- Improved Stiffness:
Preloaded slewing bearings exhibit higher stiffness due to the elimination of internal clearance. This improved stiffness is crucial in applications requiring precise positioning, such as robotics and high-precision machinery.
- Enhanced Load Distribution:
Preload improves the load distribution among rolling elements, minimizing stress concentrations and promoting uniform load sharing. This is especially important in applications with varying loads and forces.
- Reduced Vibrations:
By eliminating internal clearance and minimizing rolling element movements, preloaded bearings experience reduced vibrations during operation. This contributes to smoother and more stable equipment performance.
- Precise Positioning:
Preload ensures minimal movement within the bearing during rotational changes, making it suitable for applications where precise positioning and accurate motion control are essential.
- Resistance to External Loads:
Preloaded bearings are better equipped to handle external forces and shocks without significant deformation or misalignment, maintaining consistent performance even under varying conditions.
- Reduced Wear:
With reduced internal clearance and controlled movement, preloaded bearings experience less wear and fatigue. This extends their service life and reduces the frequency of maintenance.
- Limitations:
However, excessive preload can lead to increased friction, heat generation, and potential damage. It’s essential to apply the right amount of preload according to manufacturer recommendations and application requirements.
In summary, preload in slewing bearings enhances rigidity, load distribution, and stability, making them suitable for applications that demand precise movement and control. Properly applied preload ensures optimal performance and extends the operational life of the bearing.
What are the Materials Commonly Used in Manufacturing Slewing Bearings and Their Respective Benefits?
Slewing bearings are manufactured using a variety of materials, each offering specific benefits that suit different industrial applications. Some common materials and their advantages include:
- Steel:
High-quality steel, such as chrome or stainless steel, is widely used due to its durability, strength, and resistance to corrosion. Steel bearings can handle heavy loads and offer excellent wear resistance, making them suitable for heavy-duty applications.
- Forged Steel:
Forged steel is even more robust than standard steel due to the manufacturing process that aligns the grain structure. This material is suitable for applications with extreme loads, harsh environments, and high impact forces.
- Bearing Steel:
Bearing steel, designed specifically for rolling-element bearings, provides superior hardness and wear resistance. It’s commonly used in slewing bearings to extend their service life and minimize wear.
- Alloy Steel:
Alloy steels offer a combination of strength, toughness, and corrosion resistance. They are suitable for applications that require both load-bearing capacity and resistance to challenging conditions.
- Cast Iron:
Cast iron is often used in smaller, low-load slewing bearings. It provides good damping properties and is cost-effective for less demanding applications.
- Bronze:
Bronze bearings are known for their self-lubricating properties and resistance to corrosion. They are commonly used in applications where maintenance-free operation and low friction are important.
- Plastics and Polymers:
Various plastics and polymers are employed for their lightweight, corrosion resistance, and low friction characteristics. These materials are suitable for applications that require chemical resistance and reduced noise levels.
- Ceramics:
Ceramic materials offer excellent corrosion resistance, high temperature resistance, and electrical insulation properties. While less common, they are used in specialized applications like semiconductor manufacturing and certain medical equipment.
- Coatings:
Special coatings like zinc, nickel, or chrome plating can be applied to enhance corrosion resistance and reduce friction. These coatings are often used in combination with other base materials to improve performance.
Choosing the appropriate material depends on factors like load, environment, operating conditions, and maintenance requirements. Engineers carefully consider these factors to ensure that the selected material aligns with the specific needs of the application.
editor by CX 2024-05-07
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