NACHI 6208 Bearing — Specifications, Dimensions & Cross-Reference

The NACHI 6208 is a deep groove ball bearing manufactured by NACHI. It belongs to the 6200 series and features dimensions of 40 × 80 × 18 mm (bore × OD × width). This bearing has a dynamic load rating of 29,600 N and a static load rating of 17,800 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)	40 mm
Outside Diameter (D)	80 mm
Width (B)	18 mm
Weight	0.356 kg

Performance
Dynamic Load Rating (Cr)	29,600 N
Static Load Rating (C₀r)	17,800 N
Limiting Speed (Grease)	8,500 rpm
Limiting Speed (Oil)	10,000 rpm

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

Brand Cross-Reference — 6208 Equivalents

The following bearings from other manufacturers are interchangeable with the NACHI 6208. All share identical dimensions (40×80×18mm) and comparable load ratings:

Brand	Part Number	Dynamic Load (N)	Static Load (N)
NACHI	NACHI 6208 ✦	29,600	17,800
KOYO	KOYO 6208	29,600	17,800
Timken	Timken 6208	29,600	17,800
FAG	FAG 6208	29,600	17,800
NTN	NTN 6208	29,600	17,800
NSK	NSK 6208	29,600	17,800
SKF	SKF 6208	29,600	17,800

Available Variants

The NACHI 6208 base bearing is available in these configurations:

NACHI 6208-NR

Open with snap ring

NACHI 6208-ZZ-C3

Double shielded, C3 clearance

NACHI 6208-2RS-C3

Double sealed, C3 clearance

NACHI 6208-C3

Open, C3 clearance

NACHI 6208-2Z

Double metal shielded (ISO)

NACHI 6208-ZZ

Double metal shielded

NACHI 6208-2RS

Double rubber sealed

Frequently Asked Questions

What are the dimensions of the NACHI 6208?

The NACHI 6208 has a bore diameter of 40mm, outside diameter of 80mm, and width of 18mm. It weighs 0.356kg.

What is the load capacity of the NACHI 6208?

The dynamic load rating (Cr) is 29,600 N and the static load rating (C₀r) is 17,800 N. The maximum recommended speed is 8,500 rpm with grease lubrication or 10,000 rpm with oil lubrication.

What bearings are equivalent to NACHI 6208?

The 6208 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 40×80×18mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.