Accessory gear adapter for Bosch GWS 230 mm angle grinder by GEKO — model for arbor Ø14/Ø10, fits 230 mm discs

The GEKO accessory gear adapter is designed to allow 230 mm discs to be mounted on Bosch GWS 230 mm angle grinders that use spindle bore sizes of Ø14 or Ø10. It provides a mechanical interface that maintains stable disc alignment and secures larger cutting or grinding consumables to the grinder. The adapter enables users to expand the range of applications for Bosch GWS series grinders by accepting standard 230 mm abrasive and cutting discs.

Advantages

This adapter offers a straightforward mechanical solution to fit 230 mm discs on compatible Bosch GWS grinders with Ø14 and Ø10 spindle bores, preserving the grinder’s original mounting geometry. It reduces the need for multiple tool types when larger discs are required and helps maintain disc concentricity for safer operation. The accessory is compact and intended for quick installation and removal, supporting routine workshop and site changeovers.

Suitable for

• Users who need to fit 230 mm cutting or grinding discs on Bosch GWS 230 mm angle grinders with Ø14 or Ø10 spindles
• Metalworking tasks such as cutting steel profiles, grinding welds, and removing material with larger discs
• Construction and renovation jobs requiring longer cutting edges or higher removal rates than smaller discs provide
• Workshops that want to maintain compatibility with standard 230 mm consumables

When it may not be suitable

The adapter is intended specifically for Bosch GWS series 230 mm angle grinders with spindle bore sizes Ø14 and Ø10; it may not fit grinders with different spindle diameters or non-standard flange geometries. It does not change the grinder’s rated speed or safety requirements, so users should ensure discs and the machine are rated for the chosen RPM and application.

Key specifications

• Compatibility: designed for Bosch GWS 230 mm angle grinders with spindle bores Ø14 and Ø10
• Accepts: standard 230 mm cutting and grinding discs
• Function: mechanical gear/adapter interface for disc mounting and alignment
• Material: durable metal construction suitable for workshop and site use
• Installation: fits onto the grinder spindle and secures discs with standard flange/nut fastening

How to use

Before fitting the adapter, disconnect the grinder from power and ensure the spindle has stopped. Remove any existing flange or disc from the spindle, then position the adapter onto the spindle bore matching either the Ø14 or Ø10 side as required. Mount the 230 mm disc onto the adapter, align it concentrically, and fasten using the grinder’s standard locking nut or flange. After assembly, check that the disc rotates freely without wobble before restoring power and performing a test run at low speed. Follow the grinder and disc manufacturers’ instructions for safe operation, guard positioning, and personal protective equipment.

What to consider before purchase

• Confirm your Bosch GWS grinder model uses a spindle bore of Ø14 or Ø10
• Ensure the 230 mm discs you plan to use are rated for the grinder’s maximum RPM
• Verify the adapter’s material and dimensions match your application and operating environment
• Check that using larger discs complies with local safety regulations and the grinder manufacturer’s guidance

Usage recommendations

Always wear appropriate eye, hearing and respiratory protection when operating an angle grinder. Use the correct guard and maintain a firm two-handed grip. Perform a brief run-up of the assembled disc at operating speed to verify balance and secure mounting before beginning cutting or grinding work.