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 |
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 |
