Needle roller bearing, thrust cylindrical roller bearing, 874 series
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| PRODUCT DEFINITION | |
|---|---|
| Brand | NTN |
| d - Bore diameter of support washer IR - WS | 85 mm |
| D - Outside diameter of support washer OR - GS | 180 mm |
| d1 - External diameter of support washer IR - WS | 180 mm |
| D1 - Bore diameter bearing washer OR - GS | 88 mm |
| T - Thrust bearing height | 42 mm |
| Dw - Rolling element diameter | 13 mm |
| Dc1 - Roller cage bore diameter | 85 mm |
| Dc - Roller cage outer diameter | 180 mm |
| rs - Min fillet radius | 2,1 mm |
| Cage assembly reference | K87417 |
| Bearing ring (inner ring) WS | WS87417 |
| Bearing ring (outer ring) GS | GS87417 |
| Ea - Rollers reference outer diameter | 174 mm |
| Eb - Rollers reference inner diameter | 94 mm |
| Mass | 5,53 kg |
| Cage assembly mass | 1,03 kg |
| Bearing ring (inner ring) WS mass | 2,25 kg |
| Bearing ring (outer ring) GS mass | 2,25 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| Ca - Dynamic axial load rating | 430 kN |
| C0a - Static axial load rating | 1890 kN |
| Nlim - Grease lubrication limit speed | 450 tr/min |
| Nlim - Oil lubrication limit speed | 1800 tr/min |
| Tmin - Min operating temperature | -20 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 175 mm |
| Db max - Max OR shoulder diameter | 93 mm |
| ras max - Max shaft & housing fillet radius | 2,1 mm |