60 mm x 85 mm x 25 mm JNS NA 4912 needle roller bearings
How do I place an EMERGENCY order for a 60 mm x 85 mm x 25 mm JNS NA 4912 needle roller bearings that I want to 60 mm x 85 mm x 25 mm pick up at a our New energy Bearing Manufacturing Co., Ltd store?
What is NA 4912 bearing cross reference？
| Brand Name |
JNS |
| Model Number |
NA 4912 |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
| PDF |
NA 4912 |
Product Details
| Series |
615 |
| Cone Part Number |
617 |
| Cup Part Number |
612-B |
| Design Units |
Imperial |
| Bearing Weight |
5.3 lb |
| Cage Type |
Stamped Steel |
| d |
1.8750 in |
| D |
4.7500 in |
| D1 - Flange Outer Diameter |
5.0272 in |
| B - Cone Width |
1.6250 in |
| C - Cup Width |
1.2500 in |
| C1 - Cup Flange Width |
0.2812 in |
| T1 - Bearing Width |
1.6213 in |
| T - Bearing Width to Flange |
0.6525 in |
| R - Cone Backface To Clear Radius1 |
0.14 in |
| r - Cup Backface To Clear Radius2 |
0.130 in |
| da - Cone Frontface Backing Diameter |
2.28 in |
| db - Cone Backface Backing Diameter |
2.56 in |
| Da - Cup Frontface Backing Diameter |
4.35 in |
| Ab - Cage-Cone Frontface Clearance |
0.11 in |
| Aa - Cage-Cone Backface Clearance |
0.13 in |
| a - Effective Center Location3 |
-0.55 in |
| C90 - Dynamic Radial Rating (90 million revolutions)4 |
12100 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 |
46600 lbf |
| C0 - Static Radial Rating |
54800 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 |
6510 lbf |
| K - Factor7 |
1.86 |
| e - ISO Factor8 |
0.31 |
| Y - ISO Factor9 |
1.91 |
| G1 - Heat Generation Factor (Roller-Raceway)10 |
75.9 |
| G2 - Heat Generation Factor (Rib-Roller End) |
16.2 |
| Cg - Geometry Factor11 |
0.0694 |