RNA 6903

Single row needle roller bearing with machined rings, with flanges, without inner ring

Single row needle roller bearings without an inner ring consist of an outer ring with a needle roller and cage assembly.

They are an excellent choice for compact bearing arrangements in applications where hardened and ground raceways can be provided on the shaft. The outer ring includes two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication.

  • High radial load carrying capacity
  • High stiffness
  • Low cross-sectional height
  • Accommodate axial displacement in both directions

Dimensions

Fw
22 mm
Diameter under rollers
D
30 mm
Outside diameter
C
23 mm
Width
r1,2
min.0.3 mm
Chamfer dimension outer ring
Abutment dimensions - RNA 6903

Abutment dimensions

Da
max.28 mm
Diameter of housing abutment
ra
max.0.3 mm
Fillet radius

Calculation data

Basic dynamic load rating C
18.7 kN
Basic static load rating C0
30.5 kN
Fatigue load limit Pu
3.75 kN
Reference speed
18 000 r/min
Limiting speed
20 000 r/min
Associated seals - RNA 6903

Associated seals

G 22x30x4
Radial shaft seal with a low cross-sectional height, single lip
SD 22x30x4
Radial shaft seal with a low cross-sectional height, double lip

Description

Properties

Bearing part Bearing without inner ring
Number of rows 1
Outer ring type Machined (solid)
Aligning feature Without
Cage Sheet steel
Number of flanges, outer ring 2
Tolerance class Normal
Material, bearing Bearing steel
Coating Without
Sealing Without
Lubricant None
Relubrication feature With
Indicative carbon footprint for new product 0.15 kg CO2e

Logistics

Product net weight 0.042 kg
eClass code 23-05-09-03
UNSPSC code 31171512

(22X30X23) (RNA6903)

Additional information

Weight 0.042 kg
Size (mm)

Colour