KOYO 6804 Bearing — Specifications, Dimensions & Cross-Reference

The KOYO 6804 is a deep groove ball bearing manufactured by KOYO. It belongs to the 6800 series and features dimensions of 20 × 32 × 7 mm (bore × OD × width). This bearing has a dynamic load rating of 2,700 N and a static load rating of 1,760 N, making it suitable for light-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)20 mm
Outside Diameter (D)32 mm
Width (B)7 mm
Weight0.016 kg
Performance
Dynamic Load Rating (Cr)2,700 N
Static Load Rating (C₀r)1,760 N
Limiting Speed (Grease)19,000 rpm
Limiting Speed (Oil)26,000 rpm
💡 Application Note: The 6800 series bearings are commonly used in precision instruments, medical devices, dental handpieces, and miniature mechanisms.

Brand Cross-Reference — 6804 Equivalents

The following bearings from other manufacturers are interchangeable with the KOYO 6804. All share identical dimensions (20×32×7mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
KOYOKOYO 6804 ✦2,7001,760
Timken Timken 6804 2,700 1,760
SKF SKF 6804 2,700 1,760
NTN NTN 6804 2,700 1,760
NACHI NACHI 6804 2,700 1,760
FAG FAG 6804 2,700 1,760
Timken Timken 6804 2,700 1,760
NSK NSK 6804 2,700 1,760
NTN NTN 6804 2,700 1,760
SKF SKF 6804 2,700 1,760

Available Variants

The KOYO 6804 base bearing is available in these configurations:

KOYO 6804-ZZ-C3
"Double shielded
KOYO 6804-ZZ
Double metal shielded
KOYO 6804-NR
Open with snap ring
KOYO 6804-C3
"Open
KOYO 6804-2Z
Double metal shielded (ISO)
KOYO 6804-2RS-C3
"Double sealed
KOYO 6804-2RS
Double rubber sealed

Frequently Asked Questions

What are the dimensions of the KOYO 6804?

The KOYO 6804 has a bore diameter of 20mm, outside diameter of 32mm, and width of 7mm. It weighs 0.016kg.

What is the load capacity of the KOYO 6804?

The dynamic load rating (Cr) is 2,700 N and the static load rating (C₀r) is 1,760 N. The maximum recommended speed is 19,000 rpm with grease lubrication or 26,000 rpm with oil lubrication.

What bearings are equivalent to KOYO 6804?

The 6804 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 20×32×7mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.