Climax Metal Products C733M-20 Shaft Locking Device 20mm

Product Description

The CLIMAX METAL PRODUCTS C733M-20 is a shaft locking device engineered for secure axial load transmission between a shaft and a mating component. With a 20mm bore diameter and 1.81 inches overall diameter, it accepts M5 thread fasteners and uses five screws to generate clamping force. The unit delivers a rated axial load capacity of 4,513 pounds and a maximum torque rating of 148 ft/lb, making it well suited for demanding mechanical drive, conveyor, and power transmission applications. Mechanical engineers, millwrights, and industrial maintenance technicians are the primary installers of this device.

The C733M-20 is used in industrial and commercial mechanical assemblies where a reliable shaft-to-hub connection is required without keyways or permanent fastening. Its compact profile, with a 1.81 inches overall width and a thrust ring width of 0.472 inches, allows integration into tight shaft arrangements in motors, gearboxes, and rotating equipment. It is appropriate for both new installation and replacement service on existing machinery.

Key Features

• 20mm bore diameter for direct shaft engagement
• M5 thread size with five-screw clamping configuration for even load distribution
• 4,513 lb rated axial load capacity for heavy-duty power transmission
• 148 ft/lb maximum torque rating
• 1.81 inches overall width with 0.472 inches thrust ring width for compact fitment
• Weighs 0.4 pounds for easy handling during installation

Compatibility

Designed as an OEM-style shaft locking device for industrial mechanical assemblies requiring a 20mm bore with M5 thread fastener engagement.

Installation Notes

Installation is typically performed by a millwright or qualified mechanical technician. De-energize and lock out all rotating equipment before beginning shaft or hub work, following OSHA lockout/tagout procedures. Tighten the five clamping screws evenly in a cross pattern to achieve proper clamping force and avoid cocking the thrust ring on the shaft. Inspect shaft surface finish and diameter tolerance prior to installation to ensure proper fit and load capacity.