Reach Locking Assembly Range — Quick Reference
Reach = AU-supplied KEYLESS LOCKING ASSEMBLIES (shaft locking devices / interference-fit couplings). Industrial drive standard — connects shaft to hub WITHOUT keyway machining. Reusable + adjustable + higher torque.
| Reach Product | Best For |
|---|---|
| Reach External Locking Assembly | Hub OD mount — visible |
| Reach Internal Locking | Inside hub bore |
| Reach Self-Centring | Concentric shaft-hub |
| Sizes (8mm-200mm+ shaft) | Match to drive shaft |
Why locking assemblies vs keyway: Keyway-free installation + higher torque capacity (friction over full surface) + reusable + adjustable. Industry-standard for industrial drives + machine spindles. Brand: Reach. Companion: locking assemblies, couplings + shaft collars, taper lock bushes.
Reach Locking Assemblies at AIMS Industrial
Reach produces a range of keyless locking assemblies (also known as shaft locking devices or interference-fit couplings) used to secure hubs, pulleys, sprockets, cams and other components to shafts without keyways. AIMS Industrial stocks Reach locking assemblies in multiple types — precision mechanical components for industrial drive and positioning applications.
Reach Locking Assembly Types at AIMS
Keyless locking assemblies transmit torque through friction, eliminating the stress concentrations of keyways and enabling backlash-free connections. Reach assemblies are available at AIMS in the following configurations:
- Type 01 — single taper ring, standard duty
- Type 02 (Self-Centering) — double taper, self-centering during assembly
- Type 04 (Self-Centering) — higher torque capacity, self-centering design
- Type 07 (Self-Centering) — compact profile for space-constrained installations
- Type 19 (Self-Centering) — wide-flange design for larger hub applications
- 180 × 235mm Locking Assembly — large-format assembly for heavy industrial shafts
When to Use a Locking Assembly
Locking assemblies are the preferred choice for precision drives, indexing applications and where regular disassembly is required — they offer accurate shaft positioning, easy removal and zero keyway wear. Widely used in gearboxes, conveyors, packaging machinery and automation.
For sizing assistance or technical advice, contact our team. AIMS Industrial has been supplying Australian power transmission components since 1988.
People Also Ask — Reach
Q: Why use a keyless locking assembly instead of a traditional keyway?
A keyless locking assembly gives keyway-free installation, higher torque capacity (it transmits load through friction over the full mating surface rather than concentrating it at a keyway slot), and it's reusable and adjustable — which is why it's an industry standard for industrial drives and machine spindles.
Q: What's the difference between Reach's external and internal locking assembly types?
The external locking assembly mounts on the hub's outside diameter, so it's visible once installed. The internal locking type mounts inside the hub bore instead, out of sight.
Q: What does 'self-centring' mean on a Reach locking assembly?
Reach's self-centring types (02, 04, 07 and 19) use a double-taper design that centres itself during assembly, giving a concentric shaft-to-hub fit without needing to align it manually — Type 04 adds higher torque capacity and Type 07 a more compact profile for space-constrained installations.
Q: What size range do Reach locking assemblies cover?
Reach locking assemblies span roughly 8mm up to 200mm-plus shaft diameters, including a large-format 180 x 235mm assembly for heavy industrial shafts.
Q: What kind of equipment typically uses Reach locking assemblies?
They're the preferred choice for precision drives, indexing applications, and equipment needing regular disassembly — widely used in gearboxes, conveyors, packaging machinery and automation, where accurate shaft positioning, easy removal, and zero keyway wear all matter.