SKF 6403-ZZ Bearing — Specifications, Dimensions & Cross-Reference

The SKF 6403-ZZ is a deep groove ball bearing double metal shielded manufactured by SKF. It belongs to the 6400 series and features dimensions of 17 × 62 × 17 mm (bore × OD × width). This bearing has a dynamic load rating of 22,700 N and a static load rating of 10,800 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)17 mm
Outside Diameter (D)62 mm
Width (B)17 mm
Weight0.268 kg
Performance
Dynamic Load Rating (Cr)22,700 N
Static Load Rating (C₀r)10,800 N
Limiting Speed (Grease)11,000 rpm
Limiting Speed (Oil)15,000 rpm
💡 Application Note: The 6400 series bearings are commonly used in heavy machinery, large industrial gearboxes, and high-load conveyor systems. The -ZZ suffix indicates double metal shields, offering good protection while maintaining lower friction than rubber seals — suitable for higher speed applications.

Brand Cross-Reference — 6403-ZZ Equivalents

The following bearings from other manufacturers are interchangeable with the SKF 6403-ZZ. All share identical dimensions (17×62×17mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
SKFSKF 6403-ZZ ✦22,70010,800
Timken Timken 6403-ZZ 22,700 10,800
SKF SKF 6403-ZZ 22,700 10,800
NTN NTN 6403-ZZ 22,700 10,800
NACHI NACHI 6403-ZZ 22,700 10,800
KOYO KOYO 6403-ZZ 22,700 10,800
FAG FAG 6403-ZZ 22,700 10,800
Timken Timken 6403-ZZ 22,700 10,800
NTN NTN 6403-ZZ 22,700 10,800
NSK NSK 6403-ZZ 22,700 10,800

Available Variants

The SKF 6403 base bearing is available in these configurations:

SKF 6403-ZZ-C3
"Double shielded
SKF 6403-ZZ
Double metal shielded
SKF 6403-NR
Open with snap ring
SKF 6403-C3
"Open
SKF 6403-2Z
Double metal shielded (ISO)
SKF 6403-2RS-C3
"Double sealed
SKF 6403-2RS
Double rubber sealed
SKF 6403
Open (no seal/shield)
SKF 6403-NR
Open with snap ring
SKF 6403-ZZ-C3
Double shielded, C3 clearance
SKF 6403-2RS-C3
Double sealed, C3 clearance
SKF 6403-C3
Open, C3 clearance
SKF 6403-2Z
Double metal shielded (ISO)
SKF 6403-2RS
Double rubber sealed
SKF 6403
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the SKF 6403-ZZ?

The SKF 6403-ZZ has a bore diameter of 17mm, outside diameter of 62mm, and width of 17mm. It weighs 0.268kg.

What is the load capacity of the SKF 6403-ZZ?

The dynamic load rating (Cr) is 22,700 N and the static load rating (C₀r) is 10,800 N. The maximum recommended speed is 11,000 rpm with grease lubrication or 15,000 rpm with oil lubrication.

What bearings are equivalent to SKF 6403-ZZ?

The 6403-ZZ is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 17×62×17mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.