NACHI 6208-2RS Bearing — Specifications, Dimensions & Cross-Reference

The NACHI 6208-2RS is a deep groove ball bearing double rubber sealed 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. The -2RS suffix indicates double rubber contact seals, providing excellent protection against dust, moisture, and contaminants — ideal for harsh operating environments.

Brand Cross-Reference — 6208-2RS Equivalents

The following bearings from other manufacturers are interchangeable with the NACHI 6208-2RS. All share identical dimensions (40×80×18mm) and comparable load ratings:

Brand	Part Number	Dynamic Load (N)	Static Load (N)
NACHI	NACHI 6208-2RS ✦	29,600	17,800
KOYO	KOYO 6208-2RS	29,600	17,800
Timken	Timken 6208-2RS	29,600	17,800
FAG	FAG 6208-2RS	29,600	17,800
NSK	NSK 6208-2RS	29,600	17,800
NTN	NTN 6208-2RS	29,600	17,800
SKF	SKF 6208-2RS	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

Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NACHI 6208-2RS?

The NACHI 6208-2RS 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 6208-2RS?

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 6208-2RS?

The 6208-2RS 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.