NSK R 166 ZZ deep groove ball bearings
NSK R 166 ZZ deep groove ball bearings with easy-to-use parts graphics, giving you the ability to check parts 52000 Series 52638 Cup Part Number availability, pricing, examine 52387D Cone Part Number remanufactured options.
| Series | 52000 |
| Cone Part Number | 52387D |
| Cup Part Number | 52638 |
| Design Units | Imperial |
| Bearing Weight | 13.600 lb |
| Cage Type | Stamped Steel |
| Aa – Cage-Cone Backface Clearance | 0 in |
| d | 3.8750 in |
| D | 6.3750 in |
| B – Double Cone Width | 3.1250 in |
| C – Cup Width | 1.1563 in |
| T – Bearing Width across Cups | 3.4061 in |
| R – Cone Frontface To Clear Radius1 | 0.030 in |
| r – Cup Backface To Clear Radius2 | 0.130 in |
| da – Cone Frontface Backing Diameter | 4.29 in |
| Db – Cup Backface Backing Diameter | 5.63 in |
| Ab – Cage-Cone Frontface Clearance | 0.12 in |
| C90 – Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 13000 lbf |
| C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 87500 lbf |
| C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 22700 lbf |
| Ca90 – Dynamic Thrust Rating (90 million revolutions)6 | 10600 lbf |
| K – Factor7 | 1.23 |
| e – ISO Factor8 | 0.47 |
| Y1 – ISO Factor9 | 1.42 |
| Y2 – ISO Factor10 | 2.12 |
| Cg – Geometry Factor11 | 0.152 |
Detailed Parameters
parameter：
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