A spanner bushing, also known as a spacer or adapter sleeve, plays a critical role in the world of casters and wheels. Reduces Bore Size: Wheels often come with a larger center bore diameter than the axle they need to fit on.

• Spanner bushings act as adapters, reducing the wheel’s bore size to create a snug fit on the axle.
• This ensures the wheel stays securely centered and minimizes wobble during operation.
• In some applications, wheels might require specific spacing to maintain proper alignment.
• Spanner bushings of specific lengths can be used as spacers to achieve the desired axle separation between wheels.

This spanner fits any 2-inch-wide wheel with a ¾” roller bearing.

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