SKF 6906-2Z Bearing — Specifications, Dimensions & Cross-Reference

The SKF 6906-2Z is a deep groove ball bearing double metal shielded manufactured by SKF. It belongs to the 6900 series and features dimensions of 30 × 47 × 9 mm (bore × OD × width). This bearing has a dynamic load rating of 5,850 N and a static load rating of 3,800 N, making it suitable for light-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)30 mm
Outside Diameter (D)47 mm
Width (B)9 mm
Weight0.036 kg
Performance
Dynamic Load Rating (Cr)5,850 N
Static Load Rating (C₀r)3,800 N
Limiting Speed (Grease)14,000 rpm
Limiting Speed (Oil)19,000 rpm
💡 Application Note: The 6900 series bearings are commonly used in office equipment, small electric motors, and light industrial applications. The -2Z suffix indicates double metal shields, offering good protection while maintaining lower friction than rubber seals — suitable for higher speed applications.

Brand Cross-Reference — 6906-2Z Equivalents

The following bearings from other manufacturers are interchangeable with the SKF 6906-2Z. All share identical dimensions (30×47×9mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
SKFSKF 6906-2Z ✦5,8503,800
KOYO KOYO 6906-2Z 5,850 3,800
FAG FAG 6906-2Z 5,850 3,800
NACHI NACHI 6906-2Z 5,850 3,800
Timken Timken 6906-2Z 5,850 3,800
NSK NSK 6906-2Z 5,850 3,800
NTN NTN 6906-2Z 5,850 3,800

Available Variants

The SKF 6906 base bearing is available in these configurations:

SKF 6906-NR
Open with snap ring
SKF 6906-ZZ-C3
Double shielded, C3 clearance
SKF 6906-2RS-C3
Double sealed, C3 clearance
SKF 6906-C3
Open, C3 clearance
SKF 6906-ZZ
Double metal shielded
SKF 6906-2RS
Double rubber sealed
SKF 6906
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the SKF 6906-2Z?

The SKF 6906-2Z has a bore diameter of 30mm, outside diameter of 47mm, and width of 9mm. It weighs 0.036kg.

What is the load capacity of the SKF 6906-2Z?

The dynamic load rating (Cr) is 5,850 N and the static load rating (C₀r) is 3,800 N. The maximum recommended speed is 14,000 rpm with grease lubrication or 19,000 rpm with oil lubrication.

What bearings are equivalent to SKF 6906-2Z?

The 6906-2Z is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 30×47×9mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.