NNU4948 KOYO Double-row cylindrical roller bearings
| Brand Name: |
KOYO |
| Model Number: |
NNU4948 |
| Series: |
HH224300 |
| Cone Part Number: |
HH224349 |
| Cup Part Number: |
HH224310 |
| Design Units: |
Imperial |
| Bearing Weight: |
9.8 Kg |
| Cage Type: |
Stamped Steel |
| d: |
114.976 mm |
| D: |
212.725 mm |
| PDF |
NNU4948 |
Product Details
| Series |
HH224300 |
| Cone Part Number |
HH224349 |
| Cup Part Number |
HH224310 |
| Design Units |
Imperial |
| Bearing Weight |
9.8 Kg |
| Cage Type |
Stamped Steel |
| d |
114.976 mm |
| D |
212.725 mm |
| B - Cone Width |
66.675 mm |
| C - Cup Width |
53.975 mm |
| B |
66.675 mm |
| R - Cone Backface To Clear Radius1 |
7.110 mm |
| r - Cup Backface To Clear Radius2 |
3.30 mm |
| da - Cone Frontface Backing Diameter |
131.06 mm |
| db - Cone Backface Backing Diameter |
144.02 mm |
| Da - Cup Frontface Backing Diameter |
201.70 mm |
| Db - Cup Backface Backing Diameter |
192.02 mm |
| Ab - Cage-Cone Frontface Clearance |
3.8 mm |
| Aa - Cage-Cone Backface Clearance |
4.1 mm |
| a - Effective Center Location3 |
-18.8 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 |
39600 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 |
153000 lbf |
| C0 - Static Radial Rating |
204000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 |
22100 lbf |
| K - Factor7 |
1.79 |
| e - ISO Factor8 |
0.33 |
| Y - ISO Factor9 |
1.84 |
| G1 - Heat Generation Factor (Roller-Raceway) |
367 |
| G2 - Heat Generation Factor (Rib-Roller End) |
47.8 |
| Cg - Geometry Factor |
0.118 |