NMB L-1170 deep groove ball bearings
Request A Quote For 31317 Series Your Special NMB L-1170 deep groove ball bearings Needs Today! METRIC Design Units Free Quotes. ISO 9001 certified.
| Series | 31317 |
| Cone Part Number | X31317M |
| Design Units | METRIC |
| Cage Type | Stamped Steel |
| C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 121000 lbf |
| C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 31300 lbf |
| d | 85 mm |
| B – Cone Width | 41 mm |
| WPD | 167.4 mm |
| DD | 138.8 mm |
| R – Cone Backface To Clear Radius3 | 4 mm |
| da – Cone Frontface Backing Diameter | 110 mm |
| db – Cone Backface Backing Diameter | 120 mm |
| Ab – Cage-Cone Frontface Clearance | 5.6 mm |
| Aa – Cage-Cone Backface Clearance | 8.1 mm |
| a – Effective Center Location4 | 11.9 mm |
| C90 – Dynamic Radial Rating (90 million revolutions)5 | 79900 N |
| C1 – Dynamic Radial Rating (1 million revolutions)6 | 308000 N |
| C0 – Static Radial Rating | 366000 N |
| Ca90 – Dynamic Thrust Rating (90 million revolutions)7 | 113000 N |
| K – Factor8 | 0.71 |
| G1 – Heat Generation Factor (Roller-Raceway) | 145.7 |
| G2 – Heat Generation Factor (Rib-Roller End) | 31.3 |
| Cg – Geometry Factor | 0.109 |
Detailed Parameters
parameter：
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