NTN 6011-ZZ Bearing — Specifications, Dimensions & Cross-Reference

The NTN 6011-ZZ is a deep groove ball bearing double metal shielded manufactured by NTN. It belongs to the 6000 series and features dimensions of 55 × 90 × 18 mm (bore × OD × width). This bearing has a dynamic load rating of 24,000 N and a static load rating of 17,800 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)	55 mm
Outside Diameter (D)	90 mm
Width (B)	18 mm
Weight	0.340 kg

Performance
Dynamic Load Rating (Cr)	24,000 N
Static Load Rating (C₀r)	17,800 N
Limiting Speed (Grease)	7,500 rpm
Limiting Speed (Oil)	9,000 rpm

💡 Application Note: The 6000 series bearings are commonly used in electric motors, power tools, small pumps, and household appliances. 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 — 6011-ZZ Equivalents

The following bearings from other manufacturers are interchangeable with the NTN 6011-ZZ. All share identical dimensions (55×90×18mm) and comparable load ratings:

Brand	Part Number	Dynamic Load (N)	Static Load (N)
NTN	NTN 6011-ZZ ✦	24,000	17,800
Timken	Timken 6011-ZZ	24,000	17,800
SKF	SKF 6011-ZZ	24,000	17,800
NACHI	NACHI 6011-ZZ	24,000	17,800
KOYO	KOYO 6011-ZZ	24,000	17,800
Timken	Timken 6011-ZZ	24,000	17,800
FAG	FAG 6011-ZZ	24,000	17,800
NSK	NSK 6011-ZZ	24,000	17,800
SKF	SKF 6011-ZZ	24,000	17,800

Available Variants

The NTN 6011 base bearing is available in these configurations:

NTN 6011

NTN 6011-NR

Open with snap ring

NTN 6011-ZZ-C3

Double shielded, C3 clearance

NTN 6011-2RS-C3

Double sealed, C3 clearance

NTN 6011-C3

Open, C3 clearance

NTN 6011-2Z

Double metal shielded (ISO)

NTN 6011-2RS

Double rubber sealed

NTN 6011

Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NTN 6011-ZZ?

The NTN 6011-ZZ has a bore diameter of 55mm, outside diameter of 90mm, and width of 18mm. It weighs 0.340kg.

What is the load capacity of the NTN 6011-ZZ?

The dynamic load rating (Cr) is 24,000 N and the static load rating (C₀r) is 17,800 N. The maximum recommended speed is 7,500 rpm with grease lubrication or 9,000 rpm with oil lubrication.

What bearings are equivalent to NTN 6011-ZZ?

The 6011-ZZ is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 55×90×18mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.