66FC46340B KOYO Four-row cylindrical roller bearings
| Brand Name: | KOYO |
| Model Number: | 66FC46340B |
| Series: | 420000 |
| Cone Part Number: | EE420751 |
| Cup Part Number: | 421450 |
| Design Units: | Imperial |
| Bearing Weight: | 40.60 Kg |
| Cage Type: | Stamped Steel |
| d: | 190.5 mm |
| D: | 368.300 mm |
| PDF |
66FC46340B |
Product Details
| Series | 420000 |
| Cone Part Number | EE420751 |
| Cup Part Number | 421450 |
| Design Units | Imperial |
| Bearing Weight | 40.60 Kg |
| Cage Type | Stamped Steel |
| d | 190.5 mm |
| D | 368.300 mm |
| B - Cone Width | 88.897 mm |
| C - Cup Width | 63.500 mm |
| B | 92.075 mm |
| R - Cone Backface To Clear Radius1 | 6.35 mm |
| r - Cup Backface To Clear Radius2 | 3.30 mm |
| da - Cone Frontface Backing Diameter | 217.93 mm |
| db - Cone Backface Backing Diameter | 227.08 mm |
| Da - Cup Frontface Backing Diameter | 334.30 mm |
| Db - Cup Backface Backing Diameter | 330.96 mm |
| Ab - Cage-Cone Frontface Clearance | 3.6 mm |
| Aa - Cage-Cone Backface Clearance | 18.3 mm |
| a - Effective Center Location3 | -15.5 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 68100 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 263000 lbf |
| C0 - Static Radial Rating | 409000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 46800 lbf |
| K - Factor7 | 1.45 |
| e - ISO Factor8 | 0.4 |
| Y - ISO Factor9 | 1.49 |
| G1 - Heat Generation Factor (Roller-Raceway) | 1150 |
| G2 - Heat Generation Factor (Rib-Roller End) | 128 |
| Cg - Geometry Factor | 0.145 |
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