KOYO · JTEKT  Industry solutions · Authorized Koyo / JTEKT bearing supplier

Bearings for Gearbox & Transmission Work

Koyo Bearings: Source Factory Direct Sales supplies genuine Koyo / JTEKT bearings for gearboxes, drive shafts, machinery assemblies and planned replacement projects worldwide. We confirm the full suffix, configuration and shaft position before we quote, so the bearing you receive fits the position it was ordered for.

  • Original packaging
  • Certificates · full documentation
  • Bearings + housings on one inquiry

WhatsApp +86 152 691 88020 · info@jpkoyo.com

Open industrial gearbox casing with helical gears and roller bearings on the shafts
Gearbox shafts
Steel drive shaft with mounted bearings on a workshop bench
Drive shafts
Machinery assembly with bearing housing and adapter sleeve fitted on a shaft
Assemblies

01  Industrial gearboxes & transmissions

Gearbox bearings are ordered per shaft position, not per size.

Helical gear set and tapered roller bearings inside an industrial gearbox housing

TYPICAL POSITIONS & DUTY

  • —Input, intermediate and output shafts, each with its own bearing arrangement
  • —Locating end and floating end on the same shaft, often listed together in rebuild sheets
  • —Combined radial and axial load from gear mesh; heavy shafts where misalignment occurs

COMMON KOYO BEARING TYPES

  • Tapered roller
  • Cylindrical roller
  • Spherical roller
  • Angular contact ball

CHECKED BEFORE WE QUOTE

  1. ✓Full Koyo / JTEKT reference including brand suffix
  2. ✓Which line is locating and which is floating, shaft by shaft
  3. ✓Drive end and non-drive end quantities kept separate
  4. ✓Any substitute listed on its own line for your approval
View tapered and cylindrical roller bearings →

02  Drive shafts & machinery assemblies

An assembly is complete only when the sleeve and housing arrive with the bearing.

Long drive shaft supported by bearing housings in a machinery frame

TYPICAL POSITIONS & DUTY

  • —Shaft support points mounted in housings with adapter sleeves
  • —Compact positions inside drive assemblies where radial space is tight
  • —Combined loads on shafts transmitting torque between units

COMMON KOYO BEARING TYPES

  • Spherical roller
  • Tapered roller
  • Needle roller
  • Housings & mounting components

CHECKED BEFORE WE QUOTE

  1. ✓Bearing, adapter sleeve and housing each listed as a separate line
  2. ✓Complete assembly confirmed so nothing is missing at shutdown
  3. ✓Specific configuration your equipment specifies, not only matching dimensions
View needle and spherical roller bearings →

03  General machinery

Short stock codes drop the seal and clearance. We put them back.

Electric motor and pump unit with sealed deep groove ball bearings on the shaft

TYPICAL POSITIONS & DUTY

  • —Motors, pumps, fans and auxiliary shafts on plant equipment
  • —Sealed or shielded positions where the original seal type matters
  • —Warm-running positions where internal clearance must match the original

COMMON KOYO BEARING TYPES

  • Deep groove ball
  • Angular contact ball
  • Cylindrical roller

CHECKED BEFORE WE QUOTE

ON YOUR LIST

6205

CONFIRMED REFERENCE

6205-2RS C3

Sample only: seal type (2RS) and clearance (C3) are what a short code usually loses.

  1. ✓Original seal type and internal clearance
  2. ✓Unreadable marking: send a clear photo, we flag open items

04  OEM equipment manufacturing

Repeat orders on the same reference, with the documents your engineer asks for.

Equipment assembly hall with machine frames and boxed bearings ready for fitting

TYPICAL POSITIONS & DUTY

  • —Bearings specified on the machine drawing with a particular configuration
  • —Gearbox and drive sub-assemblies built in series
  • —Purchasing engineers checking acceptable alternatives and required documents

COMMON KOYO BEARING TYPES

  • Tapered roller
  • Needle roller
  • Angular contact ball
  • Deep groove ball

CHECKED BEFORE WE QUOTE

  1. ✓Complete reference, consistent with your previous orders
  2. ✓Whether a separately listed substitute is acceptable; technical changes need your approval
  3. ✓Which product documents can actually be supplied, stated in the quote

05  Maintenance & planned replacement

Plan the shutdown around a complete, checked parts list.

Maintenance technicians removing a worn bearing from a conveyor drive during a shutdown

TYPICAL POSITIONS & DUTY

  • —Conveyor gearboxes and drive units on scheduled overhaul
  • —Several machines replaced in one shutdown window
  • —Unplanned failures that need the correct reference fast

COMMON KOYO BEARING TYPES

  • Spherical roller
  • Tapered roller
  • Cylindrical roller
  • Housings & mounting components

CHECKED BEFORE WE QUOTE

  1. ✓Bearing position for every line on the list
  2. ✓Your shutdown date, so stock and estimated lead time are stated against it
  3. ✓All assembly parts present: bearing, sleeve, housing
See how planned replacement lists are handled →

SCENARIO A  Gearbox rebuild

How a gearbox rebuild list becomes a correct Koyo order

Rebuild orders go wrong at the list stage, not at assembly. Between your teardown and your reassembly, we turn the bearing list into complete Koyo / JTEKT references, sorted by locating and floating position, and send a written quote you can check line by line.

Disassembled gearbox on a rebuild shop floor with shafts, gears and removed bearings laid out
  1. STEP 01 · YOUR SHOP

    Teardown

    Remove the bearings and note which shaft and which end each came from. Photograph any marking you cannot read in full.

  2. STEP 02 · YOUR LIST

    Compile the list

    Equipment model, full suffix where known, bearing position, sleeve or housing reference, quantity, destination and date needed.

  3. STEP 03 · WE CHECK

    Suffix & locating / floating

    We complete the suffix and configuration, confirm which Koyo series fits each locating and floating position, and list any substitute separately.

  4. STEP 04 · WE QUOTE

    Written quote

    Reference, quantity, price and currency, stock, estimated lead time, validity, shipping or tax terms, and which documents can be supplied.

  5. STEP 05 · YOUR SHOP

    Assembly

    Check labels, quantities and condition on receipt. Any discrepancy: send the order number and photos and we handle it.

"They understand gearbox bearing arrangements. When we submitted a mixed list with floating and locating positions, they confirmed which Koyo series fit each shaft before quoting. No wrong deliveries in a year of orders."

Stefan Nowak · Nowak Napędy Przemysłowe, Poland · ★ 5.0
Steel plant conveyor line driven by a heavy industrial gearbox

SCENARIO B  Conveyor gearbox failure

Sudden conveyor gearbox failure at a steel plant

When a gearbox stops a production line, the first need is the correct Koyo reference, then fast dispatch. Send the marking photo and shaft position on WhatsApp so identification can start immediately.

Spherical roller bearings ★ 4.9

"A conveyor gearbox failed at our plant and we needed Koyo spherical roller bearings urgently. They identified the correct Koyo reference, shipped the same day, and the gearbox was back in service within the week."

Mahmoud Khalil · Khalil Steel Works, Egypt
Send the failed bearing photo →

SCENARIO C  Assembly line volume

Volume orders for gearbox assembly lines: genuine packaging, exact quantities

For series assembly, the quote lists every line item with quantity, price and currency, so you can compare terms and keep repeat orders on the same reference. Bearings ship in original packaging; check labels and counts on receipt against the order.

Koyo roller bearings QTY CHECKED

"Bulk pricing on Koyo roller bearings for our gearbox assembly line was competitive, with genuine packaging and correct quantities. Delivery to our port arrived on the agreed date."

Rodrigo Almeida · Almeida Transmissões, Brazil · ★ 4.9
Gearbox assembly line with housings moving between workstations Stacked bearings in original manufacturer boxes on a warehouse shelf Roller bearings laid out in rows on a workbench for counting

SCENARIO D  Planned replacement

Planned replacement and long-term spares from one Koyo source

Send the whole maintenance list as one inquiry. Repair quantities, maintenance lists and long-term spare needs are handled directly, so you stop splitting Koyo orders across several suppliers.

Plant spare parts store with shelves of boxed bearings and housings
  • 01

    One list, one quote

    Ball, roller and needle bearings plus housings and mounting parts quoted together, each on its own line.

  • 02

    Positions kept apart

    Drive end / non-drive end and locating / floating lines are confirmed so quantities go to the right place.

  • 03

    Same reference on every repeat order

    Complete suffixes are fixed once, so reorders do not drift to a different seal or clearance.

  • 04

    Stated against your shutdown date

    The written quote shows stock status and estimated lead time, so you can plan the window.

  • 05

    Documents named up front

    The quote states which product documents can actually be supplied with the order.

"As a transmission repair workshop, we previously split Koyo orders across several suppliers. This one consolidates our lists, matches references accurately, and the bearings are always genuine JTEKT product."

Willem Botha · Botha Transmissions, South Africa · ★ 5.0

MATCH  Bearing types by application

Find the Koyo bearing type for your gearbox position

Tapered roller for combined loads, cylindrical roller for gearbox shaft positions, spherical roller for heavy shafts with misalignment, needle roller for compact positions.

Browse all 2,995 models →

MODELS  Recently listed

Koyo bearings for gearbox and transmission work

Listed models are a starting point. Send the full reference from your list and we confirm suffix and configuration before quoting.

Gearbox bearing inquiry questions

What should I send if the brand suffix is missing?+

Send a clear photo of the bearing marking, the equipment model, the bearing position on the shaft and the quantity, and note which items are still unconfirmed. We complete the suffix and configuration before quoting. Any technical change is listed separately and needs your approval.

Can bearings and mounting components go on the same inquiry?+

Yes. Housings, adapter sleeves and related mounting components can be quoted on the same inquiry as the bearings. List each one as a separate line with its own reference and quantity so the assembly is complete at shutdown.

INQUIRY  Reference check before quoting

Send your gearbox bearing list for a written quote

Include equipment model, full suffix if known, bearing position, sleeve or housing reference, quantity, destination country and postcode, and date needed. Incomplete reference? Attach a marking photo on WhatsApp.

Send Your Gearbox Bearing List →
OFFICE
Unit 1807, Tower 2, Grand Central Plaza, 128 Sha Tin Wai Road, Sha Tin, New Territories, Hong Kong

Technical changes are never made without your approval. The quote states which product documents can be supplied.