SKF QJ 203 N2MA/C2L 1 Row Ball Bearing - 17 mm ID, 40 mm OD 12 mm Race Width

Subtotal (1 unit)*

$519.37

(exc. GST)

$571.31

(inc. GST)

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RS Stock No.:
208-0392
Mfr. Part No.:
QJ 203 N2MA/C2L
Brand:
SKF
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Brand

SKF

Inside Diameter

17mm

Product Type

Ball Bearing

Outside Diameter

40mm

Race Width

12mm

Ball Material

Steel

Cage Material

Machined Metal

End Type

Open

Number of Rows

1

Internal Clearance

C2

Contact Angle

35°

Static Load Rating

11.4kN

Dynamic Load Rating

17kN

Bore Type

Parallel

Standards/Approvals

No

Series

QJ

Limiting Speed

30000rpm

Bearing Type

Four Point Contact

COO (Country of Origin):
AT

SKF Series QJ Ball Bearing, 17mm Inside Diameter, 40mm Outside Diameter - QJ 203 N2MA/C2L


This ball bearing is a single-row four-point-contact component designed to accommodate combined radial and axial loads in Compact rotating assemblies. It operates in high-speed applications where precise contact geometry and controlled internal clearance are required, and it is supplied with an open end and a parallel bore for direct shaft mounting.

Features and Benefits:


• 30000 r/min limiting speed enables high-speed operation
• C2 internal clearance improves axial stiffness under load
• 35° contact angle provides enhanced axial load capacity
• Machined metal cage maintains ball spacing at high rpm
• Steel balls deliver consistent rolling-contact performance
• 17 kN dynamic rating supports substantial operational loads

Applications


• Suitable for Compact motor spindle assemblies
• Ideal for precision rotary indexing units
• Used with small gearbox shafts requiring axial load support
• Can be used for high-speed pump rotor bearings
• Used for combined radial and axial load-bearing shafts

What mounting configuration does it require?


It fits directly onto a shaft with a parallel bore and open end for straightforward axial positioning.

How does the bearing handle axial forces in both directions?


The four-point-contact layout shares axial loads through a 35° contact angle to sustain thrust in either direction.

What material considerations affect wear resistance?


The rolling elements are steel balls combined with a machined metal cage to preserve rolling contact under cyclic loads.

How should operating speed be managed relative to ratings?


Maintain rotational speed at or below 30 000 r/min to align with the specified limiting speed and preserve service life.

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