FAG 6203 Bearing — Specifications, Dimensions & Cross-Reference

The FAG 6203 is a deep groove ball bearing manufactured by FAG. It belongs to the 6200 series and features dimensions of 17 × 40 × 12 mm (bore × OD × width). This bearing has a dynamic load rating of 9,500 N and a static load rating of 4,750 N, making it suitable for light-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)17 mm
Outside Diameter (D)40 mm
Width (B)12 mm
Weight0.065 kg
Performance
Dynamic Load Rating (Cr)9,500 N
Static Load Rating (C₀r)4,750 N
Limiting Speed (Grease)17,000 rpm
Limiting Speed (Oil)20,000 rpm
💡 Application Note: The 6200 series bearings are commonly used in electric motors, agricultural machinery, conveyors, and automotive components.

Brand Cross-Reference — 6203 Equivalents

The following bearings from other manufacturers are interchangeable with the FAG 6203. All share identical dimensions (17×40×12mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
FAGFAG 6203 ✦9,5004,750
NACHI NACHI 6203 9,500 4,750
KOYO KOYO 6203 9,500 4,750
Timken Timken 6203 9,500 4,750
NSK NSK 6203 9,500 4,750
NTN NTN 6203 9,500 4,750
SKF SKF 6203 9,500 4,750

Available Variants

The FAG 6203 base bearing is available in these configurations:

FAG 6203-NR
Open with snap ring
FAG 6203-ZZ-C3
Double shielded, C3 clearance
FAG 6203-2RS-C3
Double sealed, C3 clearance
FAG 6203-C3
Open, C3 clearance
FAG 6203-2Z
Double metal shielded (ISO)
FAG 6203-ZZ
Double metal shielded
FAG 6203-2RS
Double rubber sealed

Frequently Asked Questions

What are the dimensions of the FAG 6203?

The FAG 6203 has a bore diameter of 17mm, outside diameter of 40mm, and width of 12mm. It weighs 0.065kg.

What is the load capacity of the FAG 6203?

The dynamic load rating (Cr) is 9,500 N and the static load rating (C₀r) is 4,750 N. The maximum recommended speed is 17,000 rpm with grease lubrication or 20,000 rpm with oil lubrication.

What bearings are equivalent to FAG 6203?

The 6203 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 17×40×12mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.