Koyo Bearings
Koyo is the bearing brand of JTEKT Corporation, a Japanese precision engineering company formed through the merger of Koyo Seiko and Toyota Machine Works. As part of the Toyota Group, JTEKT brings automotive-grade manufacturing standards to its industrial bearing products — the same quality systems and steel processing that supply major vehicle manufacturers are applied to Koyo's industrial range. Boundary dimensions follow ISO 15, ISO 355 and AS 2729 across the catalogue.
Browse Koyo at AIMS by type:
- Ball bearings — 6000, 6200, 6300 series, open/shielded/sealed, C3 clearance
- Needle roller bearings — HK shell type, NK/TAF machined type, cam followers
- Tapered roller bearings — 30000 series, metric
- Thrust bearings — 51100 ball thrust, AXK needle thrust + washers
- Angular contact bearings — combined load applications
- Self-aligning bearings — misalignment-tolerant shafts
Koyo Bearing Range at AIMS Industrial
AIMS Industrial stocks 117 Koyo bearings covering a broad cross-section of types. Deep groove ball bearings span the 6000, 6200 and 6300 series in open, metal-shielded and rubber-sealed configurations, with C3 clearance options throughout. Angular contact ball bearings are available for combined load applications. Miniature ball bearings suit instrumentation and small motor applications.
Koyo needle roller bearings include shell type (HK) in standard and heavy-duty configurations, and machined type (NK, TAF) with and without inner rings. Cam followers are stocked for track roller and follower applications. Thrust needle roller bearings (AXK series) and thrust washers complete the compact thrust bearing options. Tapered roller bearings cover the 30000 series. Thrust ball bearings (51100 series) and self-aligning ball bearings are also available.
Why Koyo
Koyo bearings offer consistent quality across a wide product range — a practical advantage when sourcing multiple bearing types from a single reliable manufacturer. Their broad catalogue coverage reduces the need to switch between suppliers and simplifies stock management for maintenance teams. As part of JTEKT, Koyo benefits from in-house steel formulation and heat treatment that delivers consistent hardness and dimensional accuracy across production batches.
Bearing Selection & Maintenance
If you're replacing an existing bearing and need to confirm the equivalent, our bearing cross-reference guide covers the standard codes used across Koyo, NTN, NSK, SKF, NACHI and others. For installation, alignment and failure diagnosis, see the bearing maintenance guide. Common type-specific guides: deep groove ball bearings, needle roller bearings and thrust bearings. When you need to pull a stuck bearing, our bearing puller guide walks through the options.
Need help selecting the right Koyo bearing for your application? Call (02) 9773 0122 or contact our team.
Available in Australia and New Zealand
This range ships across Australia from our Milperra (Sydney) warehouse — typically 1-3 business days for in-stock items. New Zealand customers: contact our team for freight quote — typically 5-7 business days via air freight to Auckland, Wellington and Christchurch. Trade and B2B accounts available on application both sides of the Tasman.