NSK 6900-NR Bearing — Specifications, Dimensions & Cross-Reference

The NSK 6900-NR is a deep groove ball bearing with snap ring groove manufactured by NSK. It belongs to the 6900 series and features dimensions of 10 × 22 × 6 mm (bore × OD × width). This bearing has a dynamic load rating of 2,340 N and a static load rating of 1,270 N, making it suitable for light-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)	10 mm
Outside Diameter (D)	22 mm
Width (B)	6 mm
Weight	0.009 kg

Performance
Dynamic Load Rating (Cr)	2,340 N
Static Load Rating (C₀r)	1,270 N
Limiting Speed (Grease)	28,000 rpm
Limiting Speed (Oil)	36,000 rpm

💡 Application Note: The 6900 series bearings are commonly used in office equipment, small electric motors, and light industrial applications. The -NR suffix indicates an external snap ring groove on the outer ring, allowing easy axial location in housing bores.

Brand Cross-Reference — 6900-NR Equivalents

The following bearings from other manufacturers are interchangeable with the NSK 6900-NR. All share identical dimensions (10×22×6mm) and comparable load ratings:

Brand	Part Number	Dynamic Load (N)	Static Load (N)
NSK	NSK 6900-NR ✦	2,340	1,270
Timken	Timken 6900-NR	2,340	1,270
SKF	SKF 6900-NR	2,340	1,270
NTN	NTN 6900-NR	2,340	1,270
NACHI	NACHI 6900-NR	2,340	1,270
KOYO	KOYO 6900-NR	2,340	1,270
FAG	FAG 6900-NR	2,340	1,270
Timken	Timken 6900-NR	2,340	1,270
NTN	NTN 6900-NR	2,340	1,270
SKF	SKF 6900-NR	2,340	1,270

Available Variants

The NSK 6900 base bearing is available in these configurations:

NSK 6900-ZZ-C3

Double shielded, C3 clearance

NSK 6900-2RS-C3

Double sealed, C3 clearance

NSK 6900-C3

Open, C3 clearance

NSK 6900-2Z

Double metal shielded (ISO)

NSK 6900-ZZ

Double metal shielded

NSK 6900-2RS

Double rubber sealed

NSK 6900

Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NSK 6900-NR?

The NSK 6900-NR has a bore diameter of 10mm, outside diameter of 22mm, and width of 6mm. It weighs 0.009kg.

What is the load capacity of the NSK 6900-NR?

The dynamic load rating (Cr) is 2,340 N and the static load rating (C₀r) is 1,270 N. The maximum recommended speed is 28,000 rpm with grease lubrication or 36,000 rpm with oil lubrication.

What bearings are equivalent to NSK 6900-NR?

The 6900-NR is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 10×22×6mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.