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 | 70 mm |
| D - Outside diameter of support washer OR - GS | 105 mm |
| d1 - External diameter of support washer IR - WS | 105 mm |
| D1 - Bore diameter bearing washer OR - GS | 72 mm |
| T - Thrust bearing height | 27 mm |
| Dw - Rolling element diameter | 11 mm |
| Dc1 - Roller cage bore diameter | 70 mm |
| Dc - Roller cage outer diameter | 105 mm |
| rs - Min fillet radius | 1 mm |
| Cage assembly reference | K81214T2 |
| Bearing ring (inner ring) WS | WS81214 |
| Bearing ring (outer ring) GS | GS81214 |
| Ea - Rollers reference outer diameter | 98,4 mm |
| Eb - Rollers reference inner diameter | 75 mm |
| Peso | 0,815 kg |
| Cage assembly mass | 0,225 kg |
| Bearing ring (inner ring) WS mass | 0,295 kg |
| Bearing ring (outer ring) GS mass | 0,295 kg |
| DESEMPENHO | |
|---|---|
| Ca - Dynamic axial load rating | 134 kN |
| C0a - Static axial load rating | 410 kN |
| Cua - Limit axial load rating | 50 kN |
| Nlim - Grease lubrication limit speed | 680 tr/min |
| Nlim - Oil lubrication limit speed | 2700 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 | 98 mm |
| Db max - Max OR shoulder diameter | 76 mm |
| ras max - Max shaft & housing fillet radius | 1 mm |