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Koyo / JTEKT bearings · Farm & construction machinery

Turn machinery repair details into a specific Koyo / JTEKT bearing enquiry.

KOYO Bearing Supplier supplies Koyo / JTEKT tapered, spherical, cylindrical and needle roller bearings to farm service shops, construction fleets, parts distributors and maintenance contractors worldwide. Send the machine model, bearing position and marking photos — we check the replacement reference and return a written quote.

Send Machine Details & Marking Photos WhatsApp +1 (702) 981-5880

Koyo / JTEKT only

Single brand, sourced through authorised channels

Matched to the machine

Checked by model, position and marking

Global supply

Farms, fleets, distributors, contractors

From machine to bearing

Four details identify the right Koyo bearing, even when the marking is worn.

If you only know the machine model, that is enough to start. We work from the equipment and the bearing position to the Koyo / JTEKT reference — never from size alone.

MachinePositionMarkingKoyo / JTEKT reference

  1. 01

    Machine model / part number

    Stamp unreadable? The machine model and part number let us check the Koyo / JTEKT reference against the equipment itself.

  2. 02

    Bearing position

    Wheel end, axle, gearbox or header drive — the position defines load and fit on mobile equipment, so it is confirmed first.

  3. 03

    Marking photos & measurements

    A partial marking plus bore, outside diameter and width narrows a worn bearing down to the correct replacement.

  4. 04

    Mating parts

    List the cups, cones and companion bearings in the same assembly so the rebuild is not stopped by a missing part.

Find bearings by machine

Koyo / JTEKT bearings for planters, harvesters, excavators and wheel loaders.

Pick your equipment type to see the bearing families used in its axles, wheel ends, gearboxes and drives.

View all applications
Agricultural Machinery working in the field 01 Agricultural Machinery Planters, harvesters, sprayers and combine harvesters use bearings in wheel hubs, gearboxes, header drives, threshing rotors and seeding units. These bearings run in dust,… See matching bearings Construction Machinery working in the field 02 Construction Machinery Excavators, wheel loaders and other earthmoving equipment depend on bearings in wheel ends, final drives, swing and travel mechanisms, and heavy-duty shafts. These positions… See matching bearings Power Transmission working in the field 03 Power Transmission Axles, gearboxes, reducers and compact drive mechanisms use tapered, cylindrical and needle roller bearings to carry combined loads and keep shafts in position. Gear… See matching bearings Industrial Equipment working in the field 04 Industrial Equipment Industrial and mobile equipment uses bearings in drive trains, auxiliary machinery and rotating parts such as electric motors, pumps, compressors, fans, machine tool spindles,… See matching bearings Parts Distribution working in the field 05 Parts Distribution Distributors of farm and construction machinery parts keep stock of Koyo / JTEKT bearings to serve workshops, dealers and fleet customers. Their orders mix… See matching bearings

Typical bearing positions · illustrative

Axle

  • Differential pinionTapered roller
  • Heavy axle shaftSpherical roller

Wheel end

  • Inner & outer wheel bearingTapered roller, cup + cone

Gearbox

  • Input / output shaftCylindrical roller
  • Compact gear driveNeedle roller
  • Auxiliary shaftDeep groove ball

Whole-assembly quoting

One bearing position or the full assembly — one enquiry, one quote.

Send a single worn bearing or every bearing in a gearbox rebuild; KOYO Bearing Supplier organises it into one written quote so companion parts are not left off the list.

  • Quote from a machine manual, an existing bearing number or a repair parts list.
  • Mating cups, cones and companion bearings checked against the complete assembly.
  • Fewer repeat orders and no second shutdown for a part found missing mid-repair.
Koyo / JTEKT bearing supply documentation on a white background
Send Your Assembly List

Koyo / JTEKT roller bearing range

From compact drives to heavy shafts.

Needle, cylindrical, tapered and spherical roller bearings, plus ball bearings for auxiliary positions — mixed lists sourced from one Koyo / JTEKT range.

View Products (186)
Compact mechanismsHeavy-duty shafts
Roller Bearings by Koyo / JTEKT

01

Roller Bearings

110 models
Ball Bearings by Koyo / JTEKT

02

Ball Bearings

75 models
Special Bearings by Koyo / JTEKT

03

Special Bearings

50 models
Bearings by Industry by Koyo / JTEKT

04

Bearings by Industry

33 models
Automotive Bearings and Parts by Koyo / JTEKT

05

Automotive Bearings and Parts

7 models
Super-Precision Bearings by Koyo / JTEKT

06

Super-Precision Bearings

1 model

Send Your Repair Parts List

Mixed lists from several machines and job sites are consolidated into one Koyo / JTEKT quote — one document to approve, one order to place.

Send Your Repair Parts List

Confirm first, then quote

Matching by original spec and application prevents the wrong fit.

A bearing that matches on size can still fail on mobile equipment. Identification gaps are closed before pricing, and no technical change goes ahead without your approval.

Check Size-only selection KOYO Bearing Supplier method
Starting pointBore, OD and width onlyMachine model, part number, marking and position
ApplicationNot checkedConfirmed against the original use on the machine
Assembly scopeOne part, mating parts often missedComplete assembly reviewed before quoting
Technical changesSubstitutes swapped silentlyAlternatives only if you accept them; every change approved by the buyer
ResultFit problems, repeat ordersThe right Koyo / JTEKT reference, first time

Every written quote states

  • Product model
  • Quantity
  • Price and currency
  • Stock status
  • Estimated lead time
  • Quote validity
  • Freight and tax terms
  • Product documents supplied

Customer reviews

Service shops, fleets and distributors from six countries rate us 4.9–5.0.

USA · Iowa5.0
"Our agricultural equipment service shop uses Koyo bearings for planters, harvesters and sprayers. This supplier provides the correct tapered, spherical and cylindrical roller bearings for each machine type, and the parts arrive in time for our busy season."
Jesse ThompsonJesse ThompsonThompson Farm Equipment Service
Peru4.9
"We run a construction equipment fleet. Koyo bearings on our excavator and wheel loader wheel ends are a critical wear item. The bearings we ordered arrived with the correct rollers and cups, and our mechanic noted the fit was exactly as expected."
Pedro AlvarezPedro AlvarezConstructora Alvarez
Netherlands5.0
"When a Koyo bearing failed on a harvest machine during the season, we needed a replacement urgently. The supplier identified the correct Koyo reference, shipped same-day, and the machine was back in the field within the day. That is what emergency support looks like."
Lars HansenLars HansenHansen Landbouwmechanisatie
Argentina4.9
"Pricing on a bulk order of Koyo bearings for our agricultural equipment parts distribution was competitive. Every box had the correct quantity, and the packaging was genuine Koyo. Delivery to our port in Buenos Aires was on schedule."
JRJuan Carlos RuizRuiz AgroPartes
Egypt5.0
"As a construction equipment maintenance contractor, I source Koyo bearings for equipment across multiple job sites. This supplier handles our mixed lists, provides clear documentation, and delivers to our depot. It has simplified our procurement."
Ahmed RamadanAhmed RamadanRamadan Construction Equipment
Poland5.0
"The Koyo bearings we ordered for a combine harvester rebuild were supplied with the correct sealing for dusty field conditions. The machine ran through the entire harvest without a bearing problem. Good product selection support."
Piotr NowakPiotr NowakNowak Maszyny Rolnicze

FAQ

Koyo bearing enquiry questions

Short answers for service managers, technicians and parts buyers preparing a Koyo / JTEKT bearing order.

What should I send if the bearing marking is worn?

Send the machine model, the bearing position and photos of any marking that is still legible, plus bore, outside diameter and width measurements. Add photos of the bearing in its assembly if you can. These details let us identify the Koyo / JTEKT reference without relying on size alone.

Can I include the machine part number?

Yes — please do. The machine part number is checked together with the Koyo / JTEKT bearing reference and the machine model. A page from the machine manual or your repair parts list works just as well.

Do you supply alternative bearings?

Only if you accept them. Before quoting we ask whether a separately identified alternative is acceptable, and any technical change must be approved by you. Otherwise the quote follows the original specification.

What if the delivery does not match my order?

Contact us with the order number and photos, and we will handle it. On receipt, check product labels, quantities and visible condition so any difference is recorded straight away.

Repair & selection guides

Bearing selection guides for machinery repair

Practical notes on identifying worn bearings, wheel-end and gearbox positions, and planning a rebuild before the season.

Request a quote

Send machine details and marking photos for a written quote.

One enquiry covers a single bearing position or a full assembly. Include these in your requirements:

  • Machine model & Koyo / JTEKT referenceOr the machine part number if the marking is worn.
  • Bearing position & quantityPlus mating parts in the same assembly.
  • Need-by date & destinationDestination country and postcode.
WhatsApp+1 (702) 981-5880 Emailinfo@koyoome.com

8 Research Drive, Greenville, SC 20627, USA

Bearing enquiry

Attach marking photos via WhatsApp or email after sending.