Timken 6406 Bearing — Specifications, Dimensions & Cross-Reference

The Timken 6406 is a deep groove ball bearing manufactured by Timken. It belongs to the 6400 series and features dimensions of 30 × 90 × 23 mm (bore × OD × width). This bearing has a dynamic load rating of 47,500 N and a static load rating of 24,500 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)30 mm
Outside Diameter (D)90 mm
Width (B)23 mm
Weight0.71 kg
Performance
Dynamic Load Rating (Cr)47,500 N
Static Load Rating (C₀r)24,500 N
Limiting Speed (Grease)8,000 rpm
Limiting Speed (Oil)10,000 rpm
💡 Application Note: The 6400 series bearings are commonly used in heavy machinery, large industrial gearboxes, and high-load conveyor systems.

Brand Cross-Reference — 6406 Equivalents

The following bearings from other manufacturers are interchangeable with the Timken 6406. All share identical dimensions (30×90×23mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
TimkenTimken 6406 ✦47,50024,500
Timken Timken 6406 47,500 24,500
SKF SKF 6406 47,500 24,500
NTN NTN 6406 47,500 24,500
NACHI NACHI 6406 47,500 24,500
KOYO KOYO 6406 47,500 24,500
FAG FAG 6406 47,500 24,500
NTN NTN 6406 47,500 24,500
NSK NSK 6406 47,500 24,500
SKF SKF 6406 47,500 24,500

Available Variants

The Timken 6406 base bearing is available in these configurations:

Timken 6406-ZZ-C3
"Double shielded
Timken 6406-ZZ
Double metal shielded
Timken 6406-NR
Open with snap ring
Timken 6406-2Z
Double metal shielded (ISO)
Timken 6406-2RS-C3
"Double sealed
Timken 6406-2RS
Double rubber sealed
Timken 6406
Open (no seal/shield)
Timken 6406-NR
Open with snap ring
Timken 6406-ZZ-C3
Double shielded, C3 clearance
Timken 6406-2RS-C3
Double sealed, C3 clearance
Timken 6406-C3
Open, C3 clearance
Timken 6406-2Z
Double metal shielded (ISO)
Timken 6406-ZZ
Double metal shielded
Timken 6406-2RS
Double rubber sealed

Frequently Asked Questions

What are the dimensions of the Timken 6406?

The Timken 6406 has a bore diameter of 30mm, outside diameter of 90mm, and width of 23mm. It weighs 0.71kg.

What is the load capacity of the Timken 6406?

The dynamic load rating (Cr) is 47,500 N and the static load rating (C₀r) is 24,500 N. The maximum recommended speed is 8,000 rpm with grease lubrication or 10,000 rpm with oil lubrication.

What bearings are equivalent to Timken 6406?

The 6406 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 30×90×23mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.