Bearings Cylindrical Roller Bearings NNU4980
| Place of Origin |
Japan |
| Brand Name |
NTN |
| Certification |
Original Cerificate |
| Model Number |
NNU4980 |
| Min.Order Quantity |
One Set |
| Price |
Check with us |
| Packaging Details |
Standard packaging |
| Delivery Time |
Within 4 working days |
| Payment Terms |
L/C,T/T |
| Supply Ability |
Check with us |
Product Features
NTN NNU4980 bearing Size Chart (mm/inches) |
|---|
| Series | 66000 |
| Cone Part Number | 66225 |
| Cup Part Number | 66462D |
| Design Units | Imperial |
| Bearing Weight | 7.25 lb |
| Cage Type | Stamped Steel |
| Ab - Cage-Cone Frontface Clearance | 0.11 in |
| d | 2.2500 in |
| D | 4.6250 in |
| B - Cone Width | 1.2500 in |
| C - Double Cup Width | 2.125 in |
| T - Bearing Width across Cones | 2.8750 in |
| R - Cone Backface To Clear Radius1 | 0.14 in |
| r - Cup Frontface To Clear Radius2 | 0.03 in |
| db - Cone Backface Backing Diameter | 2.99 in |
| Da - Cup Frontface Backing Diameter | 4.41 in |
| Aa - Cage-Cone Backface Clearance | 0.17 in |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 10300 lbf |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 69100 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 17900 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 11000 lbf |
| K - Factor7 | 0.93 |
| e - ISO Factor8 | 0.63 |
| Y1 - ISO Factor9 | 1.08 |
| Y2 - ISO Factor10 | 1.6 |
| G1 - Heat Generation Factor (Roller-Raceway)11 | 50.2 |
| G2 - Heat Generation Factor (Rib-Roller End) | 16.4 |
| Cg - Geometry Factor12 | 0.0751 |