Rolamento de agulha, rolamento axial de rolos cilíndricos, série 812
Arquivo 3D
Folha de dados técnica
| CARACTERÍSTICAS TÉCNICAS | |
|---|---|
| Marca | NTN |
| d - Bore diameter of support washer IR - WS | 45 mm |
| D - Outside diameter of support washer OR - GS | 73 mm |
| d1 - External diameter of support washer IR - WS | 73 mm |
| D1 - Bore diameter bearing washer OR - GS | 47 mm |
| T - Thrust bearing height | 20 mm |
| Dw - Rolling element diameter | 9 mm |
| Dc1 - Roller cage bore diameter | 45 mm |
| Dc - Roller cage outer diameter | 73 mm |
| rs - Min fillet radius | 1 mm |
| Cage assembly reference | K81209T2 |
| Bearing ring (inner ring) WS | WS81209 |
| Bearing ring (outer ring) GS | GS81209 |
| Ea - Rollers reference outer diameter | 68 mm |
| Eb - Rollers reference inner diameter | 48,8 mm |
| Peso | 0,31 kg |
| Cage assembly mass | 0,1 kg |
| Bearing ring (inner ring) WS mass | 0,105 kg |
| Bearing ring (outer ring) GS mass | 0,105 kg |
| DESEMPENHO | |
|---|---|
| Ca - Dynamic axial load rating | 82 kN |
| C0a - Static axial load rating | 222 kN |
| Cua - Limit axial load rating | 27 kN |
| Nlim - Grease lubrication limit speed | 1000 tr/min |
| Nlim - Oil lubrication limit speed | 4100 tr/min |
| Tmin - Temperatura mín de operação | -20 °C |
| Tmax - Temperatura máx de operação | 120 °C |
| RECOMENDACOES DE BARREIRA | |
|---|---|
| da min - Min shoulder diameter IR | 68 mm |
| Db max - Max OR shoulder diameter | 49 mm |
| ras max - Max shaft & housing fillet radius | 1 mm |