Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, HOME USE, Retail, Energy & Mining
P0 P6 P5
Number of Row:
Place of Origin:
Chrome Steel GCr15
RNA4900 needle roller bearing
OEM Customized Services
Packaging & Delivery
Single package size:
Single gross weight:
1.Commercial:1pc/plastic bag + color box + carton + pallet;
2.Industrial: a). plastic tube + carton + pallet; b). plastic bag + kraft paper + carton + pallet;
3.Customized packaging solutions for our customers.
1 - 20
21 - 1000
To be negotiated
Definition of Needle roller bearings
Needle roller bearings are roller bearings with cylindrical rollers. The rollers are thin and long relative to their diameter. This type of roller is called a needle roller. Despite having a smaller cross-section, the bearing still has a higher load bearing capacity. The radial structure is compact. When the inner diameter size and load capacity are the same as other types of bearings, the outer diameter is the smallest. It is especially suitable for the support structure with limited radial installation size.
NA4900 Needle roller bearing
number of row
OEM Customized Services
Uses of self-aligning ball bearings
Installed in combination with UC bearings
Advantages of needle roller bearings
Needle roller bearings are equipped with thin and long rollers. Therefore, the radial structure is compact.
When the inner diameter and load capacity are the same as other types of bearings, the outer diameter is the smallest. It is especially suitable for the support structure with limited radial installation size.
Needle roller bearings should be combined with bearing rings and applications depending on the application occasions, machining accuracy and surface quality
Application of needle roller bearings
The needle bearings have a small cross-sectional height, which helps to ensure that the machine is both light and compact. Therefore, they have a wide range of applications, including automobiles, motorcycles, motors, machine tools, aerospace equipment, office equipment and other industrial machinery
RNA4900 needle roller bearing one way bearing
During the customer's order production process, we carry out processing inspection, the purpose is to do better quality control
Precautions for installation of needle roller bearings
The needle bearing has a large load-bearing capacity, which is suitable for the support structure with limited installation size. The surface of the journal is hardened as a rolling surface.
The bearing is press-fitted into the seat hole without axial positioning. The bearing should be filled with an appropriate amount of grease before installation.
Causes of needle roller bearing damage
In general, 33.3% of needle roller bearings are damaged due to fatigue damage.
33.3% of needle roller bearings are due to poor lubrication, and 33.3% are due to contaminants entering the bearings or improper disposal of equipment.
Sheng Yao Wang (Dalian) International Trade Co., LTD. has been focusing business of bearing production and trade for 17 years, has rich experiences in bearing processing and trade, to provide clients with professional bearing application solutions. The companyprovides the customized products and OEM service. Various new collections and design are coming out each month with the currentstyles and fabrics. The factory own the proficient skill and updated machine
Our team attends the exhibition together, meets customers and our employees took part in the hiking meeting and climbed the mountain to do volunteer photos.
After customers visited our factory, we invited foreign friends to eat Chinese food, everyone was very happy
Why Choose Us
Diversified advantages of our products and our high quality services
Spot delivery within 48 hours！
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