Stihl Outer Blade Shaft Bearing - OEM Number: 9503 003 5242

The Stihl Outer Blade Shaft Bearing (OEM 9503 003 5242) is a genuine replacement rotational support component designed for use on Stihl TSA230 disc cutters. It is fitted within the blade shaft and cast arm assembly, where it supports the rotating outer blade shaft and ensures smooth, low-friction operation during cutting applications.

Manufactured to OEM specifications, this bearing is engineered for durability, precision rotation, and reliable performance under high-speed and high-vibration operating conditions. Its sealed bearing design helps protect against dust and debris ingress commonly encountered during masonry, concrete, and asphalt cutting operations.

FUNCTION AND OPERATION

• Supports the rotating outer blade shaft assembly
• Reduces friction during high-speed cutting operation
• Maintains shaft alignment and rotational stability
• Helps minimise vibration and wear within the drive system
• Designed to operate in dusty and demanding cutting environments

TECHNICAL DETAILS

• OEM Part Number: 9503 003 5242
• Type: Outer blade shaft bearing / grooved ball bearing
• Bearing Reference: 6002-Z-RS
• Function: Rotational shaft support and friction reduction
• Application: Stihl TSA230 disc cutter blade shaft assembly
• Construction: Hardened precision steel bearing with shielded/sealed design
• Design: OEM-specified bearing tolerances for direct replacement fitment

The 6002-Z-RS deep-groove bearing configuration combines a metal shield and rubber seal to help retain lubrication while protecting against contamination ingress in abrasive working conditions.

TYPICAL APPLICATIONS

Suitable for a range of Stihl equipment, including:

• Stihl TSA230 cordless disc cutters
• Blade shaft and cast arm assemblies
• High-speed cutting and drive systems
• Professional masonry and construction cutting equipment

This bearing is specifically referenced within the TSA230 cast arm and guard assembly parts system.

IMPORTANT INFORMATION

Always confirm the correct OEM part number and machine model before ordering, as bearing dimensions, sealing arrangements, and shaft fitment specifications may vary depending on machine series and production range. Worn or damaged blade shaft bearings can result in vibration, noise, shaft misalignment, overheating, or reduced cutting performance. Using genuine OEM-spec bearings is recommended to ensure proper fitment and long service life in high-speed cutting equipment.

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery*
£11.95 or FREE for orders over £150
Orders placed before 4pm Monday to Friday will be delivered on the next business day.
Orders placed after 4pm on Friday will be delivered the following Tuesday.
*Next day delivery applies to stocked items only. Availability can be found on the product pages.

Premium Delivery*
£27.50 for delivery before 10:30am
£20.00 for delivery before 12:30pm
*Premium delivery applies to stocked items only. Availability can be found on the product pages.

For all other countries, please click here for full delivery information.

**Separate carriage charges apply to bulk products such as 205L barrels.