Square Key

Square Key is a mechanical power transmission component used to connect a rotating shaft to a hub, pulley, gear, sprocket, coupling, flywheel, or other rotating machine part. It is installed inside the matching keyway of the shaft and hub to help transmit torque and prevent relative rotation between the two components.

In machinery and industrial equipment, a properly fitted Square Key helps the shaft and mounted component rotate together as one assembly. It is commonly used in motors, gearboxes, pumps, conveyor systems, pulleys, couplings, sprockets, fans, blowers, mixers, agricultural machinery, and general mechanical drive systems.

Square Key is a practical item for machinery maintenance, repair, replacement, fabrication, and equipment assembly. Correct size selection is important because the key must match the shaft keyseat, hub keyway, torque requirement, material, and machine application.

Material :

• Steel

Finishing :

• Steel comes in Plain

Key Features:

• Square machine key for shaft and hub connection
• Used to transmit torque between shaft and rotating components
• Suitable for pulleys, gears, sprockets, couplings, flywheels, and mechanical drive parts
• Helps prevent relative rotation between shaft and hub when fitted correctly
• Steel material suitable for general machinery and industrial applications
• Steel comes in Plain finishing
• Practical for equipment repair, maintenance, fabrication, and replacement work
• Suitable for motors, gearboxes, pumps, conveyors, fans, blowers, and production machinery
• Can be cut or machined according to required length, depending on stock and application
• Important item for mechanical power transmission and rotating equipment assembly

Applications:

Square Key is commonly used in:

• Shaft and hub connection
• Pulley installation
• Gear mounting
• Sprocket installation
• Coupling assembly
• Flywheel installation
• Motor and gearbox drive systems
• Pump and fan shaft applications
• Conveyor and roller systems
• Agricultural machinery repair
• Industrial machinery maintenance
• Workshop fabrication and machine repair
• Factory maintenance and MRO work
• Power transmission equipment
• General commercial and industrial mechanical applications

Why Choose Our Square Key

Choosing the correct Square Key size is important for torque transmission, shaft protection, hub fitment, and long-term equipment reliability. The key width, height, length, material, finishing, shaft diameter, keyway size, hub depth, and application load should be checked before ordering.

Steel Square Key with Plain finishing is a practical option for general mechanical drive systems, machinery repair, equipment replacement, workshop fabrication, and industrial maintenance. It is commonly used in applications where pulleys, gears, sprockets, couplings, or other rotating parts must be locked to a shaft.

For proper performance, the square key should fit correctly inside both the shaft keyseat and the hub keyway. A loose key may cause vibration, wear, knocking, or poor torque transfer, while an oversized key may damage the shaft, hub, or assembled component. Proper machining, fitting, and alignment are important for reliable operation.

Square Key is a small component, but it plays an important role in mechanical power transmission. In factories, workshops, and maintenance environments, keeping the correct key size available can help reduce downtime during motor, gearbox, pump, conveyor, pulley, sprocket, and coupling repair work.

We supply Square Key for machinery users, factories, maintenance departments, motor repair workshops, gearbox service teams, pump service teams, conveyor users, agricultural machinery users, steel fabricators, engineering companies, equipment manufacturers, workshop users, hardware resellers, and industrial customers in Selangor, Kuala Lumpur and across Malaysia, including Klang, Shah Alam, Puchong, Petaling Jaya, Subang, Port Klang, Balakong, Cheras, Kajang, Rawang, Semenyih, Ampang, Banting, Putrajaya, Cyberjaya and Seremban.