NTN
Deep groove ball bearings 6988
Bearing NTN 6988, Ø440×600×74 mm. Request a quote — worldwide shipping.
Type Deep groove ball bearings
Dimensions
Ø 440 × 600 × 74 mm
d440Bore Ø (mm)
×
D600Outer Ø (mm)
×
B74Width (mm)
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In stock
Technical specifications
| Brand | NTN |
| d - Internal diameter | 440 mm |
| D - External diameter | 600 mm |
| B - Bearing/Inner ring width | 74 mm |
| rs - Min fillet radius | 4 mm |
| Radial clearance class | CN |
| Mass | 60 kg |
| C - Dynamic load | 405000000 mN |
| C0 - Static load | 615000000 mN |
| Cu - Fatigue limit load | 18000000 mN |
| f0 - Coefficient | 16.4 |
| N lim - Oil lubrication limit speed | 6000 °/s |
| N lim - Grease lubrication limit speed | 5340 °/s |
| Tmin - Min operating temperature | 233,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da min - Min shoulder diameter IR | 456 mm |
| Da max - Max shoulder diameter OR | 584 mm |
| ra max - Max shaft & housing fillet radius | 3 mm |
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NTN 6988