Quick Details

• Place of Origin:

  Jiangsu, China (Mainland)

• Packing:

  Roll or single box as you required.

• Delivery Port:

  shanghai

• OE Experience:

  No

Product Name:RNA4902-China Needle Roller Bearing

RNA4902-China Needle Roller Bearing

Application

Universal

Product Description:

Machined needle bearing:

1.Dimension series 49, to DIN 617/ISO 1206
2.ISO 9000/9001/9004/19011: 2000

Dimensions (metric)F20

Without Inner Race RNAD28B13Approx.
Wgt. lbs.050InterchangeFAGRNA 4902FAG (Old No.)RNU 4902INARNA 4902SKFRNA 4902TorringtonRNA 4902

Types of Designs:
This kind of bearing has multiple structural styles for the choice of customers, such as narrow & broad series, with or without inner races, cages, ribs or sealings. It can be designed according to the special structural requirements of customers as well.

Product Precision Accuracy:
Dimensional tolerance and geometrical accuracy is based on GB/T5801.
Mutual difference of needle roller diameter is 2μm, and the precision grade is G2 (ISO GB309).
The diameter of inscribed circle conforms to tolerance grade F6 before the fitting of outer ring with cage and roller assembly.

Bearing radial running clearance conforms to the value defined by 0 group of GB/T4604.
Special precision grade is based on GB/T307.1
For fuller information on the special requirements of bearing running clearance, inscribed circle and precision grade, please contact this company.

Materials:
Material for needle roller is GCr15 bearing steel, quench-hardening HRC60---65.
Material for inner and outer races is GCr15 bearing steel, quench-hardening HRC61---65.
Material for cages is quality low-carbon steel or reinforced nylon.

Special Directions:
Bearing running clearance and inner-cutting roundness should be regulated according to different conditions.
Machine tools should be used for press-in fitting or thermal fitting of the bearing
Limited by plastic cages (suffixed with TN) and sealing-element material, operating temperature is -300C---+1000C.
For general-disposition design of bearings, refer to the relevant recommendation in the applied technology of rolling bearings.

Dimensions (metric)d15

With Inner Race NA...D28B13Approx.
Wgt. lbs.090InterchangeFAGNA 4902FAG (Old No.)NU 4902INANA 4902SKFNA 4902TorringtonNA 4902

Changzhou Yunfan Bearing Co., Ltd. (YFB) is a professional needle bearing manufacturer. Our company is located in Wujin High-Tech Industrial Zone, Changzhou, Jiangsu, China.

YFB has a high talented team, topping production equipment and perfect inspection instruments. ...[Read More]

Company Profile:

• Main Product:

  (We Sell): Machined type needle bearings,yoke type track rollers,stud type track rollers,combined needle bearings,trust needle bearings,drawn cup needle bearings,needle & cage assemblies,inner rings,non-standard bearings,bearing,needle bearing

• Business Type:

  Manufacturer

• Current Export Market:

  North America, South America, Western Europe, Eastern Europe