Description
Overview
The Marathon A105 Shaft Adapter/Key from Regal Rexnord is a precision-engineered mechanical accessory designed to adapt a 1/2″ motor shaft to a 5/8″ shaft interface. Built to Marathon’s exacting standards, this adapter ensures a secure, vibration-resistant connection between motor shafts and driven components — making it an essential solution for HVAC motor replacement, upgrade, and maintenance applications.
Key Features
- Converts 1/2″ motor shaft to 5/8″ shaft for compatibility with a wider range of driven components
- Includes integrated key for positive torque transmission and shaft alignment
- Precision-machined construction for tight tolerances and reliable fit
- Manufactured by Regal Rexnord under the trusted Marathon brand
- Ideal for use with blower motors, fan motors, and other HVAC drive applications
- Compact design for easy installation in space-constrained motor housings
Applications
- HVAC blower and fan motor shaft adaptation
- Motor replacement and upgrade projects requiring shaft size conversion
- Commercial and residential power transmission assemblies
- Any application requiring a secure 1/2″ to 5/8″ shaft interface
Specifications
- SKU: A105
- Brand: Marathon / Regal Rexnord
- Input Shaft Size: 1/2″
- Output Shaft Size: 5/8″
- Includes: Shaft Key
- Type: Shaft Adapter
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