NSK 6204 Bearing — Specifications, Dimensions & Cross-Reference

The NSK 6204 is a deep groove ball bearing manufactured by NSK. It belongs to the 6200 series and features dimensions of 20 × 47 × 14 mm (bore × OD × width). This bearing has a dynamic load rating of 12,700 N and a static load rating of 6,550 N, making it suitable for medium-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)20 mm
Outside Diameter (D)47 mm
Width (B)14 mm
Weight0.106 kg
Performance
Dynamic Load Rating (Cr)12,700 N
Static Load Rating (C₀r)6,550 N
Limiting Speed (Grease)15,000 rpm
Limiting Speed (Oil)18,000 rpm
💡 Application Note: The 6200 series bearings are commonly used in electric motors, agricultural machinery, conveyors, and automotive components.

Brand Cross-Reference — 6204 Equivalents

The following bearings from other manufacturers are interchangeable with the NSK 6204. All share identical dimensions (20×47×14mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
NSKNSK 6204 ✦12,7006,550
KOYO KOYO 6204 12,700 6,550
NACHI NACHI 6204 12,700 6,550
FAG FAG 6204 12,700 6,550
Timken Timken 6204 12,700 6,550
NTN NTN 6204 12,700 6,550
SKF SKF 6204 12,700 6,550

Available Variants

The NSK 6204 base bearing is available in these configurations:

NSK 6204-NR
Open with snap ring
NSK 6204-ZZ-C3
Double shielded, C3 clearance
NSK 6204-2RS-C3
Double sealed, C3 clearance
NSK 6204-C3
Open, C3 clearance
NSK 6204-2Z
Double metal shielded (ISO)
NSK 6204-ZZ
Double metal shielded
NSK 6204-2RS
Double rubber sealed

Frequently Asked Questions

What are the dimensions of the NSK 6204?

The NSK 6204 has a bore diameter of 20mm, outside diameter of 47mm, and width of 14mm. It weighs 0.106kg.

What is the load capacity of the NSK 6204?

The dynamic load rating (Cr) is 12,700 N and the static load rating (C₀r) is 6,550 N. The maximum recommended speed is 15,000 rpm with grease lubrication or 18,000 rpm with oil lubrication.

What bearings are equivalent to NSK 6204?

The 6204 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 20×47×14mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.