
NA4932 Needle Roller Bearing
Keywords:
Category:
Needle Roller Bearings
Product Details
Needle Roller Bearings (needle bearing) is a cylindrical roller with roller bearings, relative to its diameter, roller both thin and long. This is called needle roller. Despite having a smaller cross-section,has a higher load bearing capacity, equipped with a thin and long needle bearing roller (roller diameter D≤5mm,L / D≥2.5, L is the length of the roller), so radial structure is compact, its diameter size and load capacity and other types of bearings, minimum diameter, especially for radial dimensions limited support structure.
Special Directions:
Bearing running clearance and inner-cutting roundness should be regulated according to different conditions. Machine tolls should be used for press-in fitting or thermal fitting when install the bearing. Limited by plastic cages(suffixed with TN) and sealing-element material ,operating temperature is -30℃--+100℃.
For general-disposition design of bearings,refer to the relevant recommendation in the applied technology of roller bearings.
Specification
Needle roller bearings are a bearing that is classified as either radial or thrust depending on the direction of the load being supported. Needle roller bearings include bearings whose rollers slightly exceed the size range of needle rollers as stipulated by ISO. Needle roller bearings include drawn cup and solid radial bearings, as well as application-specific cam followers, and roller followers. Thrust bearings include thrust needle bearings.Drawn cup needle roller bearings (with a cage and full complement of rollers) have a unique outer ring structure. They have the following features: the thinnest outer ring among rolling bearings, high load capacity, high maximum permissive load owing to the use of carefully selected special alloy steel plates, a surface-hardened cage with high resistance to wear, high limiting speed, and ease of mounting.
Type |
d mm |
D mm |
H mm |
Dynamic |
Static |
W/kg |
NA4924 |
120 |
165 |
45 |
144 |
304 |
2.84 |
NA4926 |
130 |
180 |
50 |
161.6 |
364 |
3.9 |
NA4928 |
140 |
190 |
50 |
167.2 |
388 |
4.05 |
NA4930 |
150 |
210 |
60 |
208.8 |
488 |
6.38 |
NA4932 |
160 |
220 |
60 |
216 |
520 |
6.75 |
NA4934 |
170 |
230 |
60 |
223.2 |
552 |
7.11 |
NA4936 |
180 |
250 |
69 |
300 |
712 |
10.2 |
NA4938 |
190 |
260 |
69 |
312 |
756 |
10.7 |
NA4940 |
200 |
280 |
80 |
404 |
944 |
15.4 |
NA4944 |
220 |
300 |
80 |
420 |
1016 |
16.7 |
Specification |
|
Product name |
Needle Roller Bearings |
Brand |
WSRY or Customization |
Material |
GCr15; Chrome Steel; Stainless Steel |
Precision grade |
P0,P6,P5,P4,P2 |
Certification |
ISO9001:2015 |
Application area |
Military industry, automobile manufacturing, robotics, national defense, new energy, aerospace, home appliances, etc |
Quality |
100% Tested |
Feature |
High precision; High speed; Long service life |
Package |
OEM Customized |
Factory Appearance
The company was founded in 1998,covers an area of more than 90,000 square meters, plant area of more than 20,000 square meters, more than 200 employees, more than 20 technical engineers, has passed the international ISO9001:2008, ISO/ TS16949:2009 and other quality management system certification

Packing and shipping
For users to designdevelop, trial-produce all kinds of special purpose bearings, and do our best to provide high-end customers around theworld with the best solutions and good after-sales service!

Customer Visit
The company has many years of experience in the industrial field of bearing supporting and industrial service, the products are exported to the United States, Germany, Italy, France, the Czech Republic, Russia and other European and American countries and supporting enterprises, the company both at home and abroad enjoy a good business reputation!

Application
Bearings are widely used in various industries for their excellent performance and reliability. They play a crucial role in ensuring smooth and efficient operations of various machinery and equipment.






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