NTN 8Q-K21X25X13 Needle Roller And Cage Assemblies
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| Brand Name: | NTN |
| Model Number: | 8Q-K21X25X13 |
| Series: | LM451300 |
| Cone Part Number: | LM451345 |
| Cup Part Number: | LM451310 |
| Design Units: | Imperial |
| Bearing Weight: | 15.500 Kg |
| Cage Type: | Stamped Steel |
| d: | 263.525 mm |
| D: | 355.6 mm |
| PDF |
8Q-K21X25X13 |
Product Details
| Series | LM451300 |
| Cone Part Number | LM451345 |
| Cup Part Number | LM451310 |
| Design Units | Imperial |
| Bearing Weight | 15.500 Kg |
| Cage Type | Stamped Steel |
| d | 263.525 mm |
| D | 355.6 mm |
| B - Cone Width | 57.150 mm |
| C - Cup Width | 44.450 mm |
| B | 57.150 mm |
| R - Cone Backface To Clear Radius1 | 3.560 mm |
| r - Cup Backface To Clear Radius2 | 3.30 mm |
| da - Cone Frontface Backing Diameter | 278.89 mm |
| db - Cone Backface Backing Diameter | 282.96 mm |
| Da - Cup Frontface Backing Diameter | 343.41 mm |
| Db - Cup Backface Backing Diameter | 335.03 mm |
| Ab - Cage-Cone Frontface Clearance | 4.6 mm |
| Aa - Cage-Cone Backface Clearance | 4.8 mm |
| a - Effective Center Location3 | 5.1 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 40900 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 158000 lbf |
| C0 - Static Radial Rating | 339000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 25200 lbf |
| K - Factor7 | 1.62 |
| e - ISO Factor8 | 0.36 |
| Y - ISO Factor9 | 1.67 |
| G1 - Heat Generation Factor (Roller-Raceway) | 1550 |
| G2 - Heat Generation Factor (Rib-Roller End) | 212 |
| Cg - Geometry Factor | 0.154 |
Company Profile
| Phone |
+62 21 2940 9999 |
| Fax |
+62 21 2940 9999 |
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