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Needle roller bearings are bearings with cylindrical rollers that are small in diameter relative to their length. The modified roller/raceway profile prevents stress peaks to extend bearing service life.
Needle Roller Bearings are equipped with thin and long rollers (roller length is 3~10 times of diameter, diameter is generally not more than 5mm), so the radial structure is compact, its inner diameter and load capacity are the same as other types of bearings, the outer diameter is the smallest, especially suitable for the radial installation size is limited by the support results. According to different occasions of use, bearings without inner ring or needle roller and cage assembly can be selected. At this time, the journal surface and shell hole surface matching with the bearing are directly used as the inner and outer rolling surface of the bearing. In order to ensure the load capacity and running performance are the same as that of the bearing with ring, the hardness, machining accuracy and surface quality of the raceway surface of the shaft or shell hole should be similar to that of the bearing ring. This kind of bearing can only bear radial load.
Specific classification
Size
| Bearing Designation | Diameter | Borndary Dimensions | Mass | |||||||
| RAX700 | Ci | D1 | D2 msx | I | h | L | d1 | d2 | ||
| mm | g | |||||||||
| RAX705 | 5 | 5 | 9 | 15.5 | 7.7 | 3.3 | 11 | 7.2 | 11.2 | 4.5 |
| RAX712 | 12 | 12 | 18 | 27.5 | 10 | 4.2 | 14.2 | 15 | 22.6 | 16.5 |
| RAX714 | 14 | 14 | 20 | 29.5 | 10 | 4.2 | 14.2 | 17 | 24.6 | 18 |
| RAX715 | 15 | 15 | 21 | 31.5 | 10 | 4.2 | 14.2 | 19 | 26.6 | 20 |
| RAX718 | 18 | 18 | 24 | 33.5 | 14 | 4.2 | 18.2 | 21 | 28.6 | 27 |
| RAX720 | 20 | 20 | 26 | 36.5 | 14 | 4.2 | 18.2 | 22 | 31.6 | 31 |
| RAX725 | 25 | 25 | 33 | 45.5 | 18 | 4.2 | 22.2 | 30 | 39.6 | 55 |
| RAX730 | 30 | 30 | 38 | 50.5 | 18 | 4.2 | 22.2 | 35 | 44.7 | 63 |
| RAX735 | 35 | 35 | 43 | 56.5 | 18 | 4.2 | 22.2 | 39 | 50.9 | 75 |
| RAX740 | 40 | 40 | 48 | 61.5 | 18 | 4.2 | 22.2 | 43 | 54.9 | 86 |
| RAX745 | 45 | 45 | 52 | 66.5 | 18 | 4.2 | 22.2 | 48 | 59.9 | 88 |








1.we can offer OEM, non-standard, if you have detail drawing / samples, we can also produce.
2.provide technical support
3. 24-hour response line
4. quality assurance for 12 months quality warranty period
5.100% test the quality and packing before delivery
6. Free sample available.


Kenworth is now a leading bearing supplier in China for a series of original worldwide famous brands of bearings.
Having extensive inventory of various bearings and quick delivery. Also we have great advantage over any other sources in supplying the above bearings With perfect products,professional services,competitive prices and fast delivery promotes our sales network to be bigger and bigger in the world
It would be our great honor to develop business relationships with esteemed companies all over the world.

Our Bearing Main Brands:
Our Main Products:
| Deep Groove Ball Bearing |
| Self-aligning Ball Bearing |
| Angular Contact Ball Bearing |
| Cylindrical Roller Bearing |
| Spherical Roller Bearing |
| Tapered Roller Bearing |
| Thrust Ball Bearing |
| Thrust Roller Bearing |
| Needle Roller Bearing |
| Pillow Block Bearing |
| Linear Bearing |
| Railway Bearing |
| Other Bearing |
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A.We are a factory.
Q: Why did you choose us?
A. We provide the highest quality bearings with reasonable price, low noise and long work life.
B. We provide the best service.
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A.Yes,you can. Please send us the logo style after placing the order.
Q: Do you have any products I need?
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