NSK 6302-2Z Bearing — Specifications, Dimensions & Cross-Reference

The NSK 6302-2Z is a deep groove ball bearing double metal shielded manufactured by NSK. It belongs to the 6300 series and features dimensions of 15 × 42 × 13 mm (bore × OD × width). This bearing has a dynamic load rating of 11,400 N and a static load rating of 5,400 N, making it suitable for medium-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)	15 mm
Outside Diameter (D)	42 mm
Width (B)	13 mm
Weight	0.081 kg

Performance
Dynamic Load Rating (Cr)	11,400 N
Static Load Rating (C₀r)	5,400 N
Limiting Speed (Grease)	17,000 rpm
Limiting Speed (Oil)	20,000 rpm

💡 Application Note: The 6300 series bearings are commonly used in heavy-duty electric motors, mining equipment, construction machinery, and industrial gearboxes. 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 — 6302-2Z Equivalents

The following bearings from other manufacturers are interchangeable with the NSK 6302-2Z. All share identical dimensions (15×42×13mm) and comparable load ratings:

Brand	Part Number	Dynamic Load (N)	Static Load (N)
NSK	NSK 6302-2Z ✦	11,400	5,400
Timken	Timken 6302-2Z	11,400	5,400
SKF	SKF 6302-2Z	11,400	5,400
NTN	NTN 6302-2Z	11,400	5,400
NACHI	NACHI 6302-2Z	11,400	5,400
KOYO	KOYO 6302-2Z	11,400	5,400
FAG	FAG 6302-2Z	11,400	5,400
Timken	Timken 6302-2Z	11,400	5,400
NTN	NTN 6302-2Z	11,400	5,400
SKF	SKF 6302-2Z	11,400	5,400

Available Variants

The NSK 6302 base bearing is available in these configurations:

NSK 6302-NR

Open with snap ring

NSK 6302-ZZ-C3

Double shielded, C3 clearance

NSK 6302-2RS-C3

Double sealed, C3 clearance

NSK 6302-C3

Open, C3 clearance

NSK 6302-ZZ

Double metal shielded

NSK 6302-2RS

Double rubber sealed

NSK 6302

Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NSK 6302-2Z?

The NSK 6302-2Z has a bore diameter of 15mm, outside diameter of 42mm, and width of 13mm. It weighs 0.081kg.

What is the load capacity of the NSK 6302-2Z?

The dynamic load rating (Cr) is 11,400 N and the static load rating (C₀r) is 5,400 N. The maximum recommended speed is 17,000 rpm with grease lubrication or 20,000 rpm with oil lubrication.

What bearings are equivalent to NSK 6302-2Z?

The 6302-2Z is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 15×42×13mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.