Needle roller bearing, thrust cylindrical roller bearing, 811 series
3D file
Technical datasheet
Specs
PRODUCT DEFINITION | |
|---|---|
| d - Bore diameter of support washer IR - WS | 55 mm |
| D - Outside diameter of support washer OR - GS | 78 mm |
| d1 - External diameter of support washer IR - WS | 78 mm |
| D1 - Bore diameter bearing washer OR - GS | 57 mm |
| T - Thrust bearing height | 16 mm |
| Dc1 - Roller cage bore diameter | 55 mm |
| Dc - Roller cage outer diameter | 78 mm |
| rs - Min fillet radius | 0,6 mm |
| Cage assembly reference | K81111T2 |
| Bearing ring (inner ring) WS | WS81111 |
| Bearing ring (outer ring) GS | GS81111 |
| Ea - Rollers reference outer diameter | 75,2 mm |
| Eb - Rollers reference inner diameter | 57,8 mm |
| Mass | 0,25 kg |
| Cage assembly mass | 0,06 kg |
| Bearing ring (inner ring) WS mass | 0,095 kg |
| Bearing ring (outer ring) GS mass | 0,095 kg |
| Brand | NTN |
PRODUCT PERFORMANCE | |
|---|---|
| Ca - Dynamic axial load rating | 62,5 kN |
| C0a - Static axial load rating | 215 kN |
| Cua - Limit axial load rating | 26,2 kN |
| Nlim - Grease lubrication limit speed | 900 tr/min |
| Nlim - Oil lubrication limit speed | 3600 tr/min |
| Tmin - Min operating temperature | -20 °C |
| Tmax - Max operating temperature | 120 °C |
ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 75 mm |
| Db max - Max OR shoulder diameter | 58 mm |
| ras max - Max shaft & housing fillet radius | 0,6 mm |