- Contact Person : Ms. Ji Carol
- Company Name : Jiangsu SJG Import And Export Co., Ltd.
- Tel : 86-519-85151366
- Fax : 86-519-85151367
- Address : Jiangsu,Changzhou,NO.105,Lvchangtou,Puqian Village part Committee,Lanling Street,Tianning District
- Country/Region : China
- Zip : 213022
needle roller bearing
Related Product Searches:needle roller bearing,High Quality koyo needle bearing,koyo needle bearing NK35/20 HK3516
needle bearing 1. Standard ISO9001:2000 2. High precision & trustworthy quality 3. OEM service
Needle Roller Bearing
Needle roller bearing contain many slender rollers with a length 3to 10 times their diameter, As a result, the ratio of the bearing outside diameter to the inscribed circle diameter is small, and they have a rather high radial load capacity.
There are numerous types available, and many have no inner rings. The drawn-cup type has a pressed steel outer ring and the solid type has a machined outer ring. There are also cage and roller assemblies without rings. Most bearings have pressed steel cages, but some are without cages.
| Bearing Designation and Mass Approx | Boundary Dimensions | Basic Load Rating | Limiting Speed | ||||||||
Shaft Diameter | Open | Mass | Closed | Mass | FW | D | C | Cr Dynamic | Cor Static | Oil | ||
mm | Current | Original Code | g | Current | Original Code | g | mm | N | rpm | |||
4 | HK0408TN | 37941/4 | 1.6 | BK0408TN | 35941/4 | 1.8 | 4 | 8 | 8 | 1540 | 1070 | 40000 |
5 | HK0509 | 47941/5 | 2 | BK0509 | 45941/5 | 2.1 | 5 | 9 | 9 | 2200 | 1790 | 36000 |
7 | HK0709 | 47941/7 | 2.3 | BK0709 | 45941/7 | 2.9 | 7 | 11 | 9 | 2800 | 2150 | 27000 |
13 | HK1312 | - | 8.9 | BK1312 | - | 11.2 | 13 | 19 | 12 | 6200 | 7100 | 17000 |
45 | HK4512 | 27941/45 | 34.8 | BK4512 | 25941/45 | 45 | 45 | 52 | 12 | 12900 | 22500 | 5800 |
HK4516 | 47941/45 | 46.2 | BK4516 | 45941/45 | 56 | 45 | 52 | 16 | 19300 | 38000 | 5800 | |
HK4520 | 67941/45 | 56 | BK4520 | 65941/45 | 72 | 45 | 52 | 20 | 22000 | 51000 | 5800 | |
55 | HK5520 | 57941/55 | 78 | BK5020 | - | 93.8 | 55 | 63 | 20 | 29500 | 59900 | 4600 |
HK5525 | 77941/55 | 109 | - | 55941/55 | - | 55 | 63 | 25 | 33500 | 69980 | 4600 | |
HK5528 | 87941/55 | 111 | BK5528 | 84941/60 | 132 | 55 | 63 | 28 | 39090 | 98000 | 4600 | |
60 | HK6012 | - | 49.2 | BK6012 | - | 77 | 60 | 68 | 12 | 12400 | 29000 | 4100 |
HK6020 | 57941/60 | 86 | BK6020 | 55941/60 | 105 | 60 | 68 | 20 | 30500 | 72000 | 4100 | |
