• Water Pump Bearings
• Small Air Compressor Units
• Vacuum Pump Rotors
• Centrifugal Pump Supports

• Conveyor Idler Rollers
• Pallet Jack Wheel Bearings
• Lifting Equipment Pulleys
• Warehouse Transfer Carts

• Baler Mechanisms
• Hay Rake Drive Wheels
• Fertilizer Spreader Discs
• Light Tillage Equipment

• Small Gearbox Output Shafts
• Textile Machine Spindles
• Woodworking Machinery Guides
• Packaging Line Feed Rollers
• Industrial Fan and Blower Units

01. Precision Manufacturing Standards

Produced to ISO dimensional tolerances with carefully controlled raceway surface finish. The precision-ground balls and optimized internal clearance ensure reduced frictional torque, minimal vibration, and quiet operation, contributing to reliable long-term performance in continuous-duty applications.

02. Strategic Single-Shield Configuration

Features one metal shield (Z) on the designated side, providing effective protection against particle ingress while leaving the opposite side open. This design allows for easy re-lubrication and is ideal for applications where one-sided exposure is acceptable or where grease replenishment is part of routine maintenance.

03. Robust Load-Bearing Geometry

The 6203-Z incorporates an optimized internal raceway curvature that maximizes ball contact area for enhanced radial load distribution. Manufactured from premium chrome steel alloy (SAE 52100), it delivers consistent mechanical performance and extended fatigue life under moderate operating conditions.

Interchange Part Numbers

Direct replacement for:

• SKF: 6203-Z
• NSK: 6203Z
• FAG: 6203.ZR
• NTN: 6203Z
• Generic: 6203Z, 6203-Z, 6203-ZZ (when open side specified)

Design & Configuration

The 6203-Z is supplied as a pre-lubricated, single-shielded unit. The one-sided metal shield provides effective protection on the critical side while maintaining accessibility for lubrication maintenance. For applications requiring complete sealing on both sides, the double-shielded (ZZ) or rubber-sealed (2RS) variants are available. If you require specific internal clearances (C3, C4) or custom packaging configurations, please consult our technical sales team for availability.

"For pumps, agricultural equipment, and general machinery where one-sided protection is adequate, the 6203-Z delivers reliable performance with simplified maintenance access. Its balanced design and standardized dimensions make it a versatile, cost-effective solution for a wide range of light industrial applications."