► Securefix | Rectangular Key Steels

Securefix Key Steel Bars for Shaft Locking & Power Transmission

Rotating equipment only performs properly when every component is locked together without movement. Securefix rectangular key steels are used to secure gears, pulleys, sprockets & couplings onto shafts so torque transfers cleanly without slip or loss of drive.

In real-world applications, poor key fit is one of the most common causes of drive failure. Components begin to move slightly under load, keyways wear out, vibration increases & the entire system starts breaking down. These key steel bars eliminate that issue by forming a solid mechanical connection between shaft & hub, keeping everything aligned under continuous load.

Across mechanical assembly, power transmission systems & industrial maintenance, rectangular key steels are a core component in keeping machinery operating reliably. Whether you’re replacing worn keys or building new drive systems, correct sizing & fitment directly impacts performance & lifespan.

To complete installs, trades pair these with Shaft Collars & Locking Bushings, Keys & Keyways & Sprockets – Simplex, Duplex, Taper Lock, Idler for full drive setups. In workshop environments, crews rely on Testing & Measurement Tools, Workbenches, Air Compressors & Welding Machines (Mig, Tig, Arc) to machine, cut & fit key steels accurately.

A properly fitted key doesn’t just transfer torque. It protects the entire drive system from premature failure.

What’s in This Collection:

► Metric rectangular key steel bars
‣ Standardised sizes designed to match common shaft & hub keyway dimensions

► Bright steel key stock
‣ Smooth surface finish for accurate fitment & reduced machining time

► Mild steel key steels
‣ Strong, machinable material suited to general industrial & mechanical use

► Cold drawn key steel
‣ Improved dimensional accuracy for tighter tolerances & consistent fit

► Oversize key steel bars
‣ Allow adjustment or machining for custom fits where standard sizes don’t suit

► Standard length key steel bars
‣ Supplied in lengths for cutting down to exact requirements on-site

► Parallel key steel
‣ Uniform dimensions ensure even load distribution across shaft & hub

► Industrial metric key sizes
‣ Covers a wide range of shaft diameters across common applications

Different machines require different fits. Having a range of sizes & finishes available means faster repairs, better alignment & less downtime when components need replacing.

Trade Applications for Rectangular Key Steels

Drive systems depend on proper engagement between rotating components, & that’s where key steels do their job.

► Mechanical power transmission systems
‣ Transfer torque between shafts, pulleys, gears & couplings without slip

► Industrial machinery maintenance
‣ Replace worn or damaged keys to restore proper drive function

► Manufacturing equipment
‣ Maintain alignment across rotating systems running continuously under load

► Agricultural & mobile machinery
‣ Secure drive components exposed to vibration, dust & harsh conditions

► Mining & heavy industry
‣ Handle high torque applications where failure leads to major downtime

► Workshop fabrication & repair
‣ Machine & fit custom keys to suit specific shaft & hub configurations

When the key is correctly sized & fitted, torque transfers efficiently & components stay aligned under load.