KOYO NU218R cylindrical roller bearings
What is KOYO NU218R cylindrical roller bearings in mechanical engineering? Manufacturing Service . Upload your CAD file for an instant. 78000C Series 78214C Cone Part Number
| Series | 78000C |
| Cone Part Number | 78214C |
| Cup Part Number | 78549D |
| Design Units | Imperial |
| Bearing Weight | 12.34 lb |
| Cage Type | Stamped Steel |
| Ab – Cage-Cone Frontface Clearance | 0.21 in |
| d | 2.1250 in |
| D | 5.5000 in |
| B – Cone Width | 1.3085 in |
| C – Double Cup Width | 2.0395 in |
| T – Bearing Width across Cones | 3.0625 in |
| R – Cone Backface To Clear Radius1 | 0.03 in |
| r – Cup Frontface To Clear Radius2 | 0.06 in |
| db – Cone Backface Backing Diameter | 3.11 in |
| Da – Cup Frontface Backing Diameter | 5.19 in |
| Aa – Cage-Cone Backface Clearance | 0.22 in |
| C90 – Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 13800 lbf |
| C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 92600 lbf |
| C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 24000 lbf |
| Ca90 – Dynamic Thrust Rating (90 million revolutions)6 | 20400 lbf |
| K – Factor7 | 0.67 |
| e – ISO Factor8 | 0.87 |
| Y1 – ISO Factor9 | 0.78 |
| Y2 – ISO Factor10 | 1.16 |
| Cg – Geometry Factor11 | 0.0926 |
Detailed Parameters
parameter：
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