NSK 6316-ZZ Bearing — Specifications, Dimensions & Cross-Reference

The NSK 6316-ZZ is a deep groove ball bearing double metal shielded manufactured by NSK. It belongs to the 6300 series and features dimensions of 80 × 170 × 39 mm (bore × OD × width). This bearing has a dynamic load rating of 124,000 N and a static load rating of 86,500 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)	80 mm
Outside Diameter (D)	170 mm
Width (B)	39 mm
Weight	3.340 kg

Performance
Dynamic Load Rating (Cr)	124,000 N
Static Load Rating (C₀r)	86,500 N
Limiting Speed (Grease)	3,800 rpm
Limiting Speed (Oil)	4,500 rpm

💡 Application Note: The 6300 series bearings are commonly used in heavy-duty electric motors, mining equipment, construction machinery, and industrial gearboxes. 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 — 6316-ZZ Equivalents

The following bearings from other manufacturers are interchangeable with the NSK 6316-ZZ. All share identical dimensions (80×170×39mm) and comparable load ratings:

Brand	Part Number	Dynamic Load (N)	Static Load (N)
NSK	NSK 6316-ZZ ✦	124,000	86,500
Timken	Timken 6316-ZZ	124,000	86,500
SKF	SKF 6316-ZZ	124,000	86,500
NTN	NTN 6316-ZZ	124,000	86,500
NACHI	NACHI 6316-ZZ	124,000	86,500
KOYO	KOYO 6316-ZZ	124,000	86,500
FAG	FAG 6316-ZZ	124,000	86,500
Timken	Timken 6316-ZZ	124,000	86,500
NTN	NTN 6316-ZZ	124,000	86,500
SKF	SKF 6316-ZZ	124,000	86,500

Available Variants

The NSK 6316 base bearing is available in these configurations:

NSK 6316-NR

Open with snap ring

NSK 6316-ZZ-C3

Double shielded, C3 clearance

NSK 6316-2RS-C3

Double sealed, C3 clearance

NSK 6316-C3

Open, C3 clearance

NSK 6316-2Z

Double metal shielded (ISO)

NSK 6316-2RS

Double rubber sealed

NSK 6316

Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NSK 6316-ZZ?

The NSK 6316-ZZ has a bore diameter of 80mm, outside diameter of 170mm, and width of 39mm. It weighs 3.340kg.

What is the load capacity of the NSK 6316-ZZ?

The dynamic load rating (Cr) is 124,000 N and the static load rating (C₀r) is 86,500 N. The maximum recommended speed is 3,800 rpm with grease lubrication or 4,500 rpm with oil lubrication.

What bearings are equivalent to NSK 6316-ZZ?

The 6316-ZZ is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 80×170×39mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.