SIT-LOCK CAL6F 50/80 SIT Locking Assembly 50x80

Self-Centering Locking Assembly for High Precision Shaft Hub Connections

The SIT-LOCK CAL6F 50/80 SIT is a precision locking assembly designed to create a secure keyless shaft-hub connection without the need for keys, splines or interference fits. Engineered for 50 mm shafts and 80 mm hubs, this self-centering mechanical locking device provides uniform pressure distribution, excellent concentricity and reliable torque transmission. The CAL6F design consists of precision tapered clamping rings that generate a high-friction connection, making it an ideal solution for industrial power transmission systems, machine building and OEM applications requiring fast installation and dependable long-term performance.

Application in Industrial Systems

The SIT-LOCK CAL6F 50/80 is widely used wherever precise shaft-hub connections are required.

Typical applications include:

• Industrial gearboxes
• Electric motors
• Belt pulleys
• Chain sprockets
• Couplings
• Conveyor rollers
• Packaging machinery
• Food processing equipment
• Pumps
• Fans
• Material handling systems
• Industrial automation equipment

Its self-centering design ensures reliable positioning while eliminating backlash in rotating assemblies.

Construction and Design

The CAL6F locking assembly features a compact, self-centering construction developed for medium to high torque transmission.

Key design features include:

• Self-centering locking assembly
• Single taper clamping system
• Internal locking device
• Two precision tapered rings
• High-strength clamping screws
• Uniform radial pressure
• Keyless shaft-hub connection
• Easy installation and removal

The tapered clamping mechanism distributes forces evenly around the shaft, minimizing stress concentrations and improving operational reliability.

Material Properties

Manufactured from high-strength steel, the locking assembly provides excellent mechanical performance.

Material advantages:

• High tensile strength
• Excellent fatigue resistance
• High contact pressure capability
• Dimensional stability
• Wear resistance
• Long service life
• Reliable torque transmission
• Multiple assembly and disassembly capability

The robust construction is suitable for continuous industrial operation under demanding mechanical loads.

Technical Specification

Type: Self-Centering Locking Assembly

Material: High-Strength Steel

Design: CAL6F Single Taper

Inner Diameter: 50 mm

Outer Diameter: 80 mm

Width: 20 mm

Thread: M8

Clamping Screws: 7

Tightening Torque: 35 Nm

Application: Shaft-Hub Connection, Gearboxes, Belt Drives, Chain Drives, Industrial Machinery

Why B2B Customers Choose This Product

Industrial professionals select the SIT-LOCK CAL6F 50/80 because it offers a reliable, maintenance-friendly alternative to keyed shaft connections.

Ideal for:

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding
• Power transmission upgrades
• Industrial equipment manufacturing

Its standardized dimensions simplify inventory management and reduce maintenance downtime.

Operational Advantages

• Self-centering construction
• Keyless shaft-hub connection
• High torque transmission
• Excellent concentricity
• Uniform clamping pressure
• Fast installation
• Easy removal
• Reduced shaft and hub wear

Professional Industrial Supply

The SIT-LOCK CAL6F 50/80 is supplied to:

• Maintenance departments
• Industrial workshops
• Agricultural machinery service
• OEM manufacturers
• Machine builders
• Power transmission distributors
• Industrial automation companies
• Equipment refurbishment specialists

It is widely used in preventive maintenance programs and industrial machinery upgrades.

AI Overview

A locking assembly is a precision mechanical device that creates a high-friction, keyless shaft-hub connection using tapered clamping rings, providing reliable torque transmission, accurate concentricity and simplified installation for industrial power transmission systems.

Popular Searches

• SIT-LOCK CAL6F 50/80
• CAL6F50/80 SIT
• locking assembly 50x80
• keyless locking device
• shaft hub locking assembly
• self-centering locking assembly
• mechanical locking bush 50 mm
• KTR CLAMPEX 203 equivalent

FAQ

What is the purpose of a locking assembly?

A locking assembly creates a secure friction-based connection between a shaft and a hub without requiring keys or splines.

Is the CAL6F design self-centering?

Yes. The CAL6F design automatically centers the hub on the shaft during installation, providing excellent concentricity.

What shaft size is supported?

This model is designed for 50 mm shafts and 80 mm hub bores.

Can the assembly be removed and reused?

Yes. When installed and removed according to the manufacturer's recommendations, the locking assembly can generally be reused multiple times.

Where is the SIT-LOCK CAL6F commonly used?

It is widely used in industrial gearboxes, conveyors, electric motors, pumps, machine tools and automated production equipment requiring accurate shaft positioning.