Timken 6405-C3 Bearing — Specifications, Dimensions & Cross-Reference

The Timken 6405-C3 is a deep groove ball bearing with C3 clearance manufactured by Timken. It belongs to the 6400 series and features dimensions of 25 × 80 × 21 mm (bore × OD × width). This bearing has a dynamic load rating of 35,800 N and a static load rating of 19,300 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)25 mm
Outside Diameter (D)80 mm
Width (B)21 mm
Weight0.54 kg
Performance
Dynamic Load Rating (Cr)35,800 N
Static Load Rating (C₀r)19,300 N
Limiting Speed (Grease)8,500 rpm
Limiting Speed (Oil)11,000 rpm
💡 Application Note: The 6400 series bearings are commonly used in heavy machinery, large industrial gearboxes, and high-load conveyor systems. The -C3 suffix indicates greater-than-normal radial internal clearance, recommended for applications with temperature differentials or tight shaft/housing fits.

Brand Cross-Reference — 6405-C3 Equivalents

The following bearings from other manufacturers are interchangeable with the Timken 6405-C3. All share identical dimensions (25×80×21mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
TimkenTimken 6405-C3 ✦35,80019,300
SKF SKF 6405-C3 35,800 19,300
NTN NTN 6405-C3 35,800 19,300
NACHI NACHI 6405-C3 35,800 19,300
KOYO KOYO 6405-C3 35,800 19,300
FAG FAG 6405-C3 35,800 19,300
Timken Timken 6405-C3 35,800 19,300
NSK NSK 6405-C3 35,800 19,300
NTN NTN 6405-C3 35,800 19,300
SKF SKF 6405-C3 35,800 19,300

Available Variants

The Timken 6405 base bearing is available in these configurations:

Timken 6405-ZZ-C3
"Double shielded
Timken 6405-ZZ
Double metal shielded
Timken 6405-NR
Open with snap ring
Timken 6405-2Z
Double metal shielded (ISO)
Timken 6405-2RS-C3
"Double sealed
Timken 6405-2RS
Double rubber sealed
Timken 6405
Open (no seal/shield)
Timken 6405-NR
Open with snap ring
Timken 6405-ZZ-C3
Double shielded, C3 clearance
Timken 6405-2RS-C3
Double sealed, C3 clearance
Timken 6405-C3
Open, C3 clearance
Timken 6405-2Z
Double metal shielded (ISO)
Timken 6405-ZZ
Double metal shielded
Timken 6405-2RS
Double rubber sealed
Timken 6405
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the Timken 6405-C3?

The Timken 6405-C3 has a bore diameter of 25mm, outside diameter of 80mm, and width of 21mm. It weighs 0.54kg.

What is the load capacity of the Timken 6405-C3?

The dynamic load rating (Cr) is 35,800 N and the static load rating (C₀r) is 19,300 N. The maximum recommended speed is 8,500 rpm with grease lubrication or 11,000 rpm with oil lubrication.

What bearings are equivalent to Timken 6405-C3?

The 6405-C3 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 25×80×21mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.