NSK 6912-NR Bearing — Specifications, Dimensions & Cross-Reference

The NSK 6912-NR is a deep groove ball bearing with snap ring groove manufactured by NSK. It belongs to the 6900 series and features dimensions of 60 × 85 × 13 mm (bore × OD × width). This bearing has a dynamic load rating of 14,600 N and a static load rating of 11,800 N, making it suitable for medium-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)	60 mm
Outside Diameter (D)	85 mm
Width (B)	13 mm
Weight	0.140 kg

Performance
Dynamic Load Rating (Cr)	14,600 N
Static Load Rating (C₀r)	11,800 N
Limiting Speed (Grease)	7,500 rpm
Limiting Speed (Oil)	10,000 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 — 6912-NR Equivalents

The following bearings from other manufacturers are interchangeable with the NSK 6912-NR. All share identical dimensions (60×85×13mm) and comparable load ratings:

Brand	Part Number	Dynamic Load (N)	Static Load (N)
NSK	NSK 6912-NR ✦	14,600	11,800
Timken	Timken 6912-NR	14,600	11,800
SKF	SKF 6912-NR	14,600	11,800
NTN	NTN 6912-NR	14,600	11,800
KOYO	KOYO 6912-NR	14,600	11,800
FAG	FAG 6912-NR	14,600	11,800
NACHI	NACHI 6912-NR	14,600	11,800
Timken	Timken 6912-NR	14,600	11,800
NTN	NTN 6912-NR	14,600	11,800
SKF	SKF 6912-NR	14,600	11,800

Available Variants

The NSK 6912 base bearing is available in these configurations:

NSK 6912-ZZ-C3

Double shielded, C3 clearance

NSK 6912-2RS-C3

Double sealed, C3 clearance

NSK 6912-C3

Open, C3 clearance

NSK 6912-2Z

Double metal shielded (ISO)

NSK 6912-ZZ

Double metal shielded

NSK 6912-2RS

Double rubber sealed

NSK 6912

Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NSK 6912-NR?

The NSK 6912-NR has a bore diameter of 60mm, outside diameter of 85mm, and width of 13mm. It weighs 0.140kg.

What is the load capacity of the NSK 6912-NR?

The dynamic load rating (Cr) is 14,600 N and the static load rating (C₀r) is 11,800 N. The maximum recommended speed is 7,500 rpm with grease lubrication or 10,000 rpm with oil lubrication.

What bearings are equivalent to NSK 6912-NR?

The 6912-NR is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 60×85×13mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.