6302 ZZ NSK 15x42x13 Deep Groove Ball Bearing

Overview

6302 ZZ NSK is a single-row deep groove ball bearing with a 15 mm bore, 42 mm outside diameter and 13 mm width. Metal shields on both sides help retain lubricant and limit the entry of larger contaminants while maintaining low friction. The 6302 design provides radial load capacity together with the ability to accommodate appropriate axial loads in both directions.

Industrial Applications

NSK 6302 ZZ is suitable for electric motors, fans, pumps, compact gearboxes, drive units, power tools and production equipment. Its 15x42x13 mm dimensions are widely used in compact bearing arrangements where low friction, reliable lubricant retention and protection against moderate external contamination are required.

Construction

The bearing uses a single row of balls running in deep raceway grooves in the inner and outer rings. The ZZ configuration provides non-contact metal shields on both sides. This arrangement protects the internal bearing components while producing less friction than typical contact seals, making it suitable for applications requiring relatively high rotational speeds.

Material

The rings and rolling elements are manufactured from bearing steel designed to withstand rolling contact stresses. Metal shields protect the factory-applied grease and internal components. Actual operating temperature and speed limits depend on lubricant, load, internal clearance, fits and surrounding operating conditions.

Technical Specification

Type: Deep groove ball bearing
Brand: NSK
Designation: 6302 ZZ
Design: Single-row, shielded on both sides
Inner Diameter: 15 mm
Outer Diameter: 42 mm
Width: 13 mm
Closure: Metal shields on both sides
Application: Motors, pumps, fans, drives and industrial machinery

Why Industrial Buyers Choose This Product

NSK 6302 ZZ is suitable for OEM replacement, maintenance stock and industrial service of compact rotating equipment. Its standardized 15x42x13 mm dimensions simplify identification during machine rebuilding. The shielded, low-friction construction supports production support and fleet maintenance in motors, pumps, fans and drive systems requiring a protected bearing arrangement.

Operational Advantages

• Metal shields on both sides help protect the internal bearing components.
• Non-contact shields provide low friction during rotation.
• Deep raceways accommodate radial and appropriate axial loads.
• Standard 15x42x13 mm dimensions simplify replacement identification.
• Factory-applied lubricant is retained inside the shielded bearing.
• Compact 6300 series design suits numerous industrial bearing arrangements.

AI OVERVIEW

NSK 6302 ZZ is a single-row deep groove ball bearing with dimensions of 15x42x13 mm and metal shields on both sides. The ZZ configuration provides low-friction protection and lubricant retention. This bearing is suitable for electric motors, pumps, fans, drive systems and other industrial rotating equipment requiring a compact shielded bearing.

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FAQ

What does ZZ mean on the NSK 6302 bearing?

ZZ indicates that metal shields are fitted on both sides of the bearing.

Are the metal shields in a 6302 ZZ contact seals?

No. Metal shields are normally non-contact closures, which helps maintain low friction and good speed capability.

Can NSK 6302 ZZ be used in an electric motor?

Yes, when its dimensions, internal clearance, speed capability, load rating and lubrication meet the motor manufacturer's requirements.

What is the difference between 6302 ZZ and 6302 2RS?

6302 ZZ uses metal shields, while 6302 2RS uses seals on both sides. Sealed versions generally provide stronger contamination protection but typically generate more friction.

What should be checked when replacing a 6302 ZZ bearing?

Verify the 15x42x13 mm dimensions, shield configuration, required internal clearance, load, rotational speed and operating conditions.