K Series

K Series

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  • K Series
  • K Series

Needle roller bearings are bearings with cylindrical rollers that are small in diameter relative to their length. The modified roller/raceway profile prevents stress peaks to extend bearing service life.

InquiryBearing Designation Shaft Diameter（mm）Weight(Kg)Boundary Dimensions(mm) Basic Load Rating(N) Limiting Speed(rpm)
Current CodeOriginal CodeFwDCDynamicStatic Oil
K42x47x25 TN 42 25.4 42 47 25 27000 57500 9000
K42x47x17 49241/42 42 31.1 42 47 17 21100 42500 9000
K42x47x13 29241/42 42 22.5 42 47 13 17300 33000 9000
K43x50x18 9249/43 43 48.5 43 50 18 30500 53500 8000
K43x48x27 43 45.7 43 48 27 33000 74500 9000
K43x48x17 43 29.3 43 48 17 21000 42500 9000
K45x51x36 ZW 45 85 45 51 36 44500 98500 7000
K45x59x32 45 145.5 45 59 32 72500 101500 7000
K45x59x36 45 195 45 59 36 75500 108500 7000
K45x59x18 TN 45 60.5 45 59 18 43500 53500 7000
K45x53x28 45 78 45 53 28 51500 97500 8000
K45x53x22 45 68.4 45 53 22 42000 66500 8000
K45x53x21 45 65 45 53 21 38000 66500 8000
K45x52x21 TN 45 32.9 45 52 21 39500 57500 8000
K45x53x20 19244/45 45 62.2 45 53 20 38500 66500 8000
K45x52x18 45 51 45 52 18 31000 56500 8000
K45x50x32 TN 45 45 45 50 32 38000 90500 8000
K45x50x27 19241/45 45 50 45 50 27 34000 79500 8000
K45x50x17 49241/45 45 25.5 45 50 17 22000 45000 8000
K45x49x19 45 27 45 49 19 17500 40000 8000
K47x55x28 47 62.4 47 55 28 52500 99500 7500
K47x53x25 47 53 47 53 25 38000 81500 8000
K47x52x27 47 50.7 47 52 27 34500 82500 8000
K47x52x17 47 32 47 52 17 22800 48500 8000
K48x54x25 59242/48 48 55 48 54 25 31000 91000 7500
K48x54x19 39242/48 48 44 48 54 19 30000 60500 7500
K50x58x25 29244/50 50 81 50 58 25 43500 80500 7000
K50x57x18 50 53.4 50 57 18 33000 62500 7000
K50x58x20 19244/50 50 64.9 50 58 20 35000 61500 7000
K50x55x30 9243/50 50 59.4 50 55 30 38500 96500 7500
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