Drawn Cup Needle Roller Bearing
Needle roller bearings HK BK series
HK,open-end drawn cup needle roller bearing with retainer
BK,close-end drawn cup needle roller bearing with retainer
| shaft diameter | bearing designation | boundary dimensions | basic load rating | limiting speed | ||||
| current code | original code | FW | D | C | dynamic | static | oil | |
| C | Co | |||||||
| mm | mm | N | rpm | |||||
| 3 | HK0306TN | 3 | 6.5 | 6 | 1320 | 950 | 60000 | |
| BK0306TN | 3 | 6.5 | 6 | 1320 | 950 | 60000 | ||
| 4 | HK0408TN | 37941/4 | 4 | 8 | 8 | 1540 | 1070 | 40000 |
| BK0408TN | 57941/4 | 4 | 8 | 8 | 1540 | 1070 | 40000 | |
| 5 | HK0509 | 47941/5 | 5 | 9 | 9 | 2200 | 1790 | 36000 |
| BK0509 | 45941/5 | 5 | 9 | 9 | 2200 | 1790 | 36000 | |
| 6 | HK0608 | 37941/6 | 6 | 10 | 8 | 1830 | 1550 | 32000 |
| HK0609 | 47941/6 | 6 | 10 | 9 | 2650 | 2400 | 3000 | |
| BK 0609 | 45941/6 | 6 | 10 | 9 | 2650 | 2400 | 3000 | |
| 7 | HK0708 | 7 | 11 | 8 | 2800 | 2150 | 27000 | |
| HK0709 | 47941/7 | 7 | 11 | 9 | 2800 | 2150 | 27000 | |
| BK0709 | 45941/7 | 7 | 11 | 9 | 2800 | 2150 | 27000 | |
| 8 | HK0808 | 37941/8 | 8 | 12 | 8 | 2550 | 2400 | 21000 |
| BK0808 | 35941/8 | 8 | 12 | 8 | 2550 | 2400 | 21000 | |
| HK0810 | 57941/8 | 8 | 12 | 10 | 3700 | 3450 | 21000 | |
| BK0810 | 88941/8 | 8 | 12 | 10 | 3700 | 3450 | 21000 | |
| HK08X14X10 | 27942/8 | 8 | 14 | 10 | 3800 | 3950 | 25000 | |
| HK08X14X12 | 37942/8 | 8 | 14 | 12 | 4100 | 4320 | 25000 | |