Description
Product Overview
The Fci ent brass adapter bushings are engineered to convert a 7/8″ arbor down to a true 5/8″ fit. Each bushing is machined from premium brass, offering excellent corrosion resistance and wear tolerance. At 1.5 mm (1/16″) thickness, the bushings provide a solid, stable interface that maintains concentricity and reduces run‑out during high‑speed operations. The three‑piece pack ensures you have enough stock for multiple tool changes or backup inventory.
Usage
These adapters are perfect for abrasive wheel applications in industrial and scientific settings, such as grinding, polishing, and surface preparation. They fit seamlessly into existing 7/8″ arbors and transform them to accommodate standard 5/8″ wheels, eliminating the need for specialized equipment. Technicians, maintenance crews, and hobbyists alike benefit from the quick‑swap capability, allowing downtime to be minimized on the shop floor.

Why Choose Us
Fci ent stands for precision manufacturing. Our brass bushings undergo strict dimensional control and are inspected for surface finish to guarantee a perfect fit. The material choice balances strength with machinability, ensuring the adapter resists deformation under load while remaining easy to install. Backed by a reputable manufacturer, these adapters meet industrial standards and are supported by a responsive customer service team.
Key Features
- High‑end brass construction for superior durability and corrosion resistance
- Exact 7/8″ to 5/8″ conversion delivering true fit for abrasive wheels
- 1.5 mm (1/16″) thick arbor bushing ensures stable, concentric alignment
- Three‑piece pack provides flexibility for multiple tools or replacements
- Designed for industrial & scientific environments, meeting #70 rank in Abrasive Wheel Adapters
FAQ
What size arbor does this adapter fit?
The adapter is designed for a 7/8″ (22.2 mm) arbor and converts it to a true 5/8″ (15.9 mm) bore for standard abrasive wheels.
Is the brass material suitable for high‑speed applications?
Yes, the premium brass used offers excellent strength-to-weight ratio and maintains dimensional stability at high rotational speeds.
Can I use these adapters with non‑abrasive accessories?
While optimized for abrasive wheel adapters, the precise 5/8″ output can accommodate any accessory that requires that bore size, provided the load conditions are appropriate.
Do the bushings require any special installation tools?
No special tools are needed; a standard arbor press or hand‑tightening with a suitable wrench will seat the bushing securely.
What is the warranty on these adapters?
Fci ent offers a one‑year limited warranty covering material defects and manufacturing errors.





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