NACHI 6900-2Z Bearing — Specifications, Dimensions & Cross-Reference

The NACHI 6900-2Z is a deep groove ball bearing double metal shielded manufactured by NACHI. 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 -2Z suffix indicates double metal shields, offering good protection while maintaining lower friction than rubber seals — suitable for higher speed applications.

Brand Cross-Reference — 6900-2Z Equivalents

The following bearings from other manufacturers are interchangeable with the NACHI 6900-2Z. All share identical dimensions (10×22×6mm) and comparable load ratings:

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

Available Variants

The NACHI 6900 base bearing is available in these configurations:

NACHI 6900-ZZ-C3

"Double shielded

NACHI 6900-ZZ

Double metal shielded

NACHI 6900-NR

Open with snap ring

NACHI 6900-C3

"Open

NACHI 6900-2RS-C3

"Double sealed

NACHI 6900-2RS

Double rubber sealed

NACHI 6900

Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NACHI 6900-2Z?

The NACHI 6900-2Z 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 NACHI 6900-2Z?

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 NACHI 6900-2Z?

The 6900-2Z 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.