NSK 6210-ZZ Bearing — Specifications, Dimensions & Cross-Reference

The NSK 6210-ZZ is a deep groove ball bearing double metal shielded manufactured by NSK. 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. The -ZZ suffix indicates double metal shields, offering good protection while maintaining lower friction than rubber seals — suitable for higher speed applications.

Brand Cross-Reference — 6210-ZZ Equivalents

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

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

Available Variants

The NSK 6210 base bearing is available in these configurations:

NSK 6210-NR

Open with snap ring

NSK 6210-ZZ-C3

Double shielded, C3 clearance

NSK 6210-2RS-C3

Double sealed, C3 clearance

NSK 6210-C3

Open, C3 clearance

NSK 6210-2Z

Double metal shielded (ISO)

NSK 6210-2RS

Double rubber sealed

NSK 6210

Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NSK 6210-ZZ?

The NSK 6210-ZZ 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 NSK 6210-ZZ?

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 NSK 6210-ZZ?

The 6210-ZZ 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.