Needle roller bearing is a roller bearing with cylindrical rollers. Compared with its diameter, the rollers are thin and long. This kind of roller is called needle roller.
Part Number |
d - Bore |
D - Outer Diameter |
B - Width |
Cr - Dynamic Radial Rating |
Cor - Static Radial Rating |
Reference speed |
Limiting speed |
|---|---|---|---|---|---|---|---|
| NKS45-XL | - | 60 mm | - | 45500 N | 60000 N | 6000 rpm | 9800 rpm |
| NK47/20-XL | - | 57 mm | - | 32500 N | 56000 N | 6000 rpm | 9800 rpm |
| NK47/30-XL | - | 57 mm | - | 48500 N | 94000 N | 5800 rpm | 9800 rpm |
| NA4910-2RSR-XL | 50 mm | 72 mm | 23 mm | 45000 N | 64000 N | - | - |
| NA4910-RSR-XL | 50 mm | 72 mm | 23 mm | 45000 N | 64000 N | - | - |
| NA4910-XL | 50 mm | 72 mm | 22 mm | 53000 N | 80000 N | 4150 rpm | 7800 rpm |
| NA6910-ZW-XL | 50 mm | 72 mm | 40 mm | 82000 N | 139000 N | 4200 rpm | 7800 rpm |
| NK50/25-TV-XL | - | 62 mm | - | 48500 N | 87000 N | 5400 rpm | 9200 rpm |
| NKI50/25-XL | 50 mm | 68 mm | 25 mm | 45500 N | 82000 N | 4950 rpm | 8400 rpm |
| NKI50/35-XL | 50 mm | 68 mm | 35 mm | 60000 N | 118000 N | 4900 rpm | 8400 rpm |
| NKS50 | - | 65 mm | - | 42500 N | 67000 N | 5500 rpm | 8900 rpm |
| NKS50-XL | - | 65 mm | - | 48000 N | 67000 N | 5500 rpm | 8900 rpm |
| RNAO50X62X20 | - | 62 mm | - | 26500 N | 60000 N | 5800 rpm | 9300 rpm |
| RNAO50X62X20-XL | - | 62 mm | - | 30000 N | 60000 N | 5800 rpm | 9300 rpm |
| NA4911-XL | 55 mm | 80 mm | 25 mm | 65000 N | 100000 N | 4000 rpm | 7200 rpm |
| NA6911-ZW-XL | 55 mm | 80 mm | 45 mm | 102000 N | 176000 N | 4000 rpm | 7200 rpm |
| NK55/25-XL | - | 68 mm | - | 45500 N | 82000 N | 5200 rpm | 8400 rpm |
| NK55/35-XL | - | 68 mm | - | 60000 N | 118000 N | 5200 rpm | 8400 rpm |
| NKI55/25-TV-XL | 55 mm | 72 mm | 25 mm | 53000 N | 103000 N | 4400 rpm | 7700 rpm |
| NKS55-XL | - | 72 mm | - | 51000 N | 74000 N | 5100 rpm | 8200 rpm |