Wuxi Guangqiang Bearing Trade Co.,Ltd 86-510-82695331 gq@gqbearing.com
Nachi OD 30 mm Solid Needle Wheel Roller Bearings NA4903 With Nylon Cage

Nachi OD 30 mm Solid Needle Wheel Roller Bearings NA4903 With Nylon Cage

  • High Light

    Cam Follower Bearing

    ,

    Thrust Needle Bearing

  • Type
    Needle, Roller
  • Brand Name
    NACHI
  • Bore Size
    17 Mm
  • Outside Diameter
    30 Mm
  • Model Number
    NA4903
  • Precision Rating
    P0 P6 P5 P4 P2
  • Seals Type
    OPEN/ZZ/2RS
  • Clearance
    C0,C2,C3,C4,C5
  • Weight
    0.047-0.086KG
  • Place of Origin
    Japan
  • Brand Name
    Optional
  • Certification
    ISO9000/ISO14001/QS9000/TS16949
  • Model Number
    NA4903
  • Minimum Order Quantity
    1.PCS
  • Packaging Details
    Standard Carton Box / Wooden Pallet Case.
  • Delivery Time
    Within 3 working days
  • Payment Terms
    T/T, Western Union, Paypal

Nachi OD 30 mm Solid Needle Wheel Roller Bearings NA4903 With Nylon Cage

Nachi OD 30 mm Solid Needle Wheel Roller Bearings NA4903 With Nylon Cage

 

 

Product Description

     Overview of Nachi needle roller bearing

 

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.

1) Cage & Needle Roller Assemblies

Cage & Needle roller assemblies consist of a complement of needle rollers held in place by a cage.

2) Drawn Cup Needle Roller Bearings 

Drawn cup needle roller bearings (with a cage and full complement of rollers) have a unique outer ring structure.

3) Solid Needle Roller Bearings

Solid needle roller bearings are high-accuracy bearings with maximum load capacity within a limited space for various operating conditions.

4) Thrust Needle Roller Bearings

Thrust needle bearings type comes in metric and inch designs. The cage & Needle roller assembly for the thrust needle bearing is a cage that has two pieces joined together

5) Cam Followers

Cam followers, which are equipped with a thick-wall outer ring, crowned rollers, and a stud with a hardened raceway surface, are especially tough and can sustain shock loads.

6) Roller Followers

The roller follower with a thick-wall outer ring and crowned roller has a large load capacity which enables it to carry shock loads. 

 Features of Nachi needle roller bearing NA4903

 

Nachi needle roller bearing NA4903

Brand Name

NACHI

Structure

Needle

Type

roller

Seals Type

OPEN ZZ 2RS

 Size(d*D*Bmm)

17*30*13

Weight(kg)

0.04

Clearance

C0,C2,C3,C4,C5

Precision Rating

ABEC1,ABEC3,ABEC5,ABEC7,ABEC9

Vibration

V1,V2,V3,V4

Noise Level 

Z1,Z2,Z3,Z4

Cage

Steel / Brass / Nylon

Advantage

  Longer Life

  Adopted NACHI original seal design to prevent contamination and       grease leakage.

  Contains special grease for wider temperature ranges and longer         life.

  Smooth and Quiet Operation 

  The precision level of our bearing components has been enhanced     to ensure smooth and quiet operation.

  Low Torque

  Lower rotating torque by improving seal lips.

 

 

Other Models of Nachi Needle Roller Bearings

No. Type Model number Bore size(mm) Outside diameter(mm) Breadth(mm)
1 Needle roller BK0408 4 8 8
2 Needle roller BK0509 5 9 9
3 Needle roller BK0609 6 10 9
4 Needle roller BK0709 7 11 9
5 Needle roller BK0808 8 12 8
6 Needle roller BK0810 8 12 10
7 Needle roller BK0910 9 13 10
8 Needle roller BK0912 9 13 12
9 Needle roller BK1010 10 14 10
10 Needle roller BK1012 10 14 12
11 Needle roller BK1210 12 16 10
12 Needle roller BK1412 14 20 12
13 Needle roller BK1416 14 20 16
14 Needle roller BK1512 15 21 12
15 Needle roller BK1516 15 21 16
16 Needle roller BK1612 16 22 12
17 Needle roller BK1616 16 22 16
18 Needle roller BK1712 17 23 12
19 Needle roller BK1812 18 24 12
20 Needle roller BK1816 18 24 16
21 Needle roller BK2012 20 26 12
22 Needle roller BK2016 20 26 16
23 Needle roller BK2212 22 28 12
24 Needle roller BK2216 22 28 16
25 Needle roller BK2512 25 32 12
26 Needle roller BK2516 25 32 16
27 Needle roller BK2520 25 32 20
28 Needle roller BK2816 28 35 16
29 Needle roller BK2820 28 35 20
30 Needle roller BK3012 30 37 12

 

 

 

 

Nachi OD 30 mm Solid Needle Wheel Roller Bearings NA4903 With Nylon Cage 0

Nachi OD 30 mm Solid Needle Wheel Roller Bearings NA4903 With Nylon Cage 1