NTN
Spherical roller bearings 230/630B
Bearing NTN 230/630B, Ø630×920×212 mm. Request a quote — worldwide shipping.
Type Spherical roller bearings
Dimensions
Ø 630 × 920 × 212 mm
d630Bore Ø (mm)
×
D920Outer Ø (mm)
×
B212Width (mm)
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In stock
Technical specifications
| Brand | NTN |
| d - Internal diameter | 630 mm |
| D - External diameter | 920 mm |
| B - Bearing/Inner ring width | 212 mm |
| d2 - External diameter inner ring | 0 mm |
| D1 - Inner diameter outer ring | 834 mm |
| rs - Min fillet radius | 7,5 mm |
| Number of lubrication holes | 8 |
| b - Groove width | 33 mm |
| k - Hole diameter | 20 mm |
| Radial clearance class | CN |
| Mass | 481 kg |
| C - Dynamic load | 6550000000 mN |
| C0 - Static load | 13000000000 mN |
| Cu - Fatigue limit load | 950000000 mN |
| e - Coefficient | 0.22 |
| Y0 - Static axial load coefficient | 3.07 |
| Y1 - Lower axial load coefficient | 3.14 |
| Y2 - Upper axial load coefficient | 4.67 |
| N lim - Oil lubrication limit speed | 2400 °/s |
| N lim - Grease lubrication limit speed | 1860 °/s |
| Tmin - Min operating temperature | 233,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da min - Min shoulder diameter IR | 666 mm |
| Da max - Max shoulder diameter OR | 884 mm |
| ra max - Max shaft & housing fillet radius | 6 mm |
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NTN 230/630B