Climax Metal SB-181X5 0.181" X 1/4" Bushing

The Climax Metal SB-181X5 is a high-precision steel shaft adapter bushing designed for technicians needing to adapt components with larger bores to smaller diameter shafts. This shaft reducer sleeve features a 0.181" inside diameter (I.D.) and a 1/4" outside diameter (O.D.), making it an essential solution for mounting pulleys, gears, or fan blades onto undersized motor shafts. With a total length of 3/4", it provides ample surface contact for high-torque applications. This model includes a dedicated set screw hole, allowing the primary component’s set screw to pass through the bushing and bite directly into the shaft for a slip-free mechanical connection. Manufactured from durable steel, the SB-181X5 shaft adapter ensures concentricity and reduces vibration in high-speed HVACR rotations. Whether performing field repairs or custom equipment modifications, this bore reducer bushing provides the tight tolerances required to maintain system alignment and operational efficiency.

• Precision Bore Adaptation: Effectively converts a 1/4" bore to accept a 0.181" shaft without replacing expensive drive components.
• Integrated Set Screw Access: Factory-drilled hole ensures the fastener makes direct contact with the inner shaft for maximum grip.
• Industrial Steel Construction: High-strength material resists deformation under load and ensures a long service life in demanding environments.
• Enhanced Concentricity: Maintains axial alignment to prevent "wobble" and premature bearing wear in rotating assemblies.

Will this bushing stay in place during high-RPM operation?
Yes, as long as the component's set screw is properly tightened through the pre-drilled access hole, the assembly will remain secure against the shaft.

Can the SB-181X5 be trimmed to a shorter length?
While the 3/4" length is standard for most HVACR pulleys, it can be machined or cut if your specific application requires a lower profile.

Does this adapter work with both keyed and non-keyed shafts?
The SB-181X5 is designed for non-keyed, round shafts where a set screw provides the primary clamping force.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.