NACHI 6210 Bearing — Specifications, Dimensions & Cross-Reference

The NACHI 6210 is a deep groove ball bearing manufactured by NACHI. It belongs to the 6200 series and features dimensions of 50 × 90 × 20 mm (bore × OD × width). This bearing has a dynamic load rating of 35,100 N and a static load rating of 21,600 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)	50 mm
Outside Diameter (D)	90 mm
Width (B)	20 mm
Weight	0.440 kg

Performance
Dynamic Load Rating (Cr)	35,100 N
Static Load Rating (C₀r)	21,600 N
Limiting Speed (Grease)	6,700 rpm
Limiting Speed (Oil)	8,500 rpm

💡 Application Note: The 6200 series bearings are commonly used in electric motors, agricultural machinery, conveyors, and automotive components.

Brand Cross-Reference — 6210 Equivalents

The following bearings from other manufacturers are interchangeable with the NACHI 6210. All share identical dimensions (50×90×20mm) and comparable load ratings:

Brand	Part Number	Dynamic Load (N)	Static Load (N)
NACHI	NACHI 6210 ✦	35,100	21,600
KOYO	KOYO 6210	35,100	21,600
Timken	Timken 6210	35,100	21,600
FAG	FAG 6210	35,100	21,600
NSK	NSK 6210	35,100	21,600
NTN	NTN 6210	35,100	21,600
SKF	SKF 6210	35,100	21,600

Available Variants

The NACHI 6210 base bearing is available in these configurations:

NACHI 6210-NR

Open with snap ring

NACHI 6210-ZZ-C3

Double shielded, C3 clearance

NACHI 6210-2RS-C3

Double sealed, C3 clearance

NACHI 6210-C3

Open, C3 clearance

NACHI 6210-2Z

Double metal shielded (ISO)

NACHI 6210-ZZ

Double metal shielded

NACHI 6210-2RS

Double rubber sealed

Frequently Asked Questions

What are the dimensions of the NACHI 6210?

The NACHI 6210 has a bore diameter of 50mm, outside diameter of 90mm, and width of 20mm. It weighs 0.440kg.

What is the load capacity of the NACHI 6210?

The dynamic load rating (Cr) is 35,100 N and the static load rating (C₀r) is 21,600 N. The maximum recommended speed is 6,700 rpm with grease lubrication or 8,500 rpm with oil lubrication.

What bearings are equivalent to NACHI 6210?

The 6210 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 50×90×20mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.