Rows of tapered and cylindrical roller bearings laid out on a workshop bench

KOYO · JTEKT  Koyo / JTEKT bearing supplier · Hong Kong

Koyo / JTEKT Transmission Bearings & Mounting Components

Every reference is checked before we quote: full suffix, configuration and assembly confirmed first, so the bearing you receive fits the position in your gearbox or drive.

SHEET 01  Select by operating condition

Which Koyo bearing type fits your operating condition?

Start from the load and the space you have. Each operating condition below points to one Koyo bearing family. Dimensions alone don't settle the choice, so give us the full reference or the bearing position and we confirm the exact configuration before quoting.

Operating condition Koyo bearing type Include in your inquiry Category link
General machinery Deep groove ball bearings Seal type and clearance suffix View deep groove ball bearings →
Combined radial and axial loads Tapered roller bearings Also: angular contact ball bearings Shaft position and full suffix View tapered roller bearings →
Gearbox shaft positions Cylindrical roller bearings Drive end / non-drive end, locating / floating View cylindrical roller bearings →
Heavy loads with shaft misalignment Spherical roller bearings Adapter sleeve and housing references View spherical roller bearings →
Compact mounting space Needle roller bearings Equipment model and bearing position View needle roller bearings →

Need angular contact ball bearings for combined loads? View angular contact ball bearings

SHEET 03  Koyo models

Koyo bearing references, quoted after the reference check

Each listing is a starting point. Before you get a written quote, we confirm the full suffix and configuration against your equipment.

Cast iron bearing housing with a spherical roller bearing and adapter sleeve ready for mounting

SHEET 04  Housings & mounting components

Bearings, adapter sleeves and housings can go on one inquiry.

Yes, you can quote them together. List each adapter sleeve and housing reference on its own line next to the bearing it carries. When these parts are bought from different sources, one of them is often missing on shutdown day.

  • 01Separate lines, one inquiry. Give the bearing, adapter sleeve and housing references as individual items with their own quantities.
  • 02Assembly checked as a set. We confirm the complete assembly before quoting, so your maintenance team doesn't find a missing part on site.
  • 03Unknown housing reference? Send a clear photo of the marking and note which items still need confirming.

SHEET 05  Reference check

How the Koyo reference check works before we quote

Before any price is sent, we complete the identification your list is missing. Short stock codes, missing suffixes and mixed drive end / non-drive end entries are resolved first. Any technical change waits for your approval.

  1. 01

    We receive your list

    Send it on WhatsApp or by email with the equipment model, full brand suffix, bearing position, adapter sleeve or housing reference, quantity, destination country and postcode, and required date. If a reference is incomplete, add a clear photo of the marking.

  2. 02

    Suffix, configuration and assembly completed

    We fill in the missing suffix and confirm the specific configuration, such as seal type and clearance. We also check that the full assembly is covered, so you aren't relying on a size-only match.

    Seal type Clearance DE / NDE Locating / floating
  3. 03

    Alternatives listed separately

    If an alternative reference is possible, it appears as its own line and is never swapped in silently. No technical change goes ahead without your approval.

  4. 04

    Written quotation issued

    The quote states the model, quantity, price and currency, stock status, estimated lead time, validity period, and any applicable shipping or tax terms. It also lists which product documents can actually be supplied.

SHEET 06  What you receive

What comes with a Koyo / JTEKT order from Koyo Bearings: Source Factory Direct Sales

Koyo / JTEKT bearings are supplied in original packaging. Which documents apply to your order is stated in the written quotation, so you know what to expect before you place it.

  • Original packaging

    Genuine Koyo / JTEKT bearings, shipped in the manufacturer's original packaging.

  • Certificates & documentation

    The product documents available for each order are stated in the written quotation, so you know what to expect before ordering.

  • Shipping documents

    Shipping method, dispatch timing and the shipping documents you need are confirmed with you after the order.

Which product documents we can supply is confirmed in the written quotation. If you need a specific document, name it in your inquiry and we'll state whether it can be provided.

On delivery, check labels, quantities and appearance. If anything differs, contact us with your order number and photos.

SHEET 07  Who sends us lists

What each buyer checks before ordering Koyo bearings

Procurement engineers, maintenance managers and distributor buyers each check something different. We answer that check before quoting.

Procurement engineer comparing two roller bearings at a desk

01 · OEM / project buying

Procurement engineers

Confirm the complete model including suffix, any acceptable alternative listed separately, and the documents required.

Maintenance manager inspecting an opened industrial gearbox during a shutdown

02 · Repair & planned replacement

Maintenance managers

Check each bearing position against the shutdown date, and make sure every assembly part arrives together.

Boxed bearings stacked on warehouse shelving ready for a repeat order

03 · Resale & repeat orders

Distributor buyers

Compare quantities line by line, review commercial terms, and confirm that repeat orders carry the same references.

Spherical roller bearings packed in boxes on a dispatch table

Koyo / JTEKT bearing supplier · Unit 1807, Tower 2, Grand Central Plaza, 128 Sha Tin Wai Road, Sha Tin, New Territories, Hong Kong

Send Your Bearing List

Send your list exactly as it is, short stock codes included. Add the equipment model, bearing positions, adapter sleeve or housing references, quantities, destination and required date. We complete the reference check and reply with a written quotation.

Quote request · reference check included