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About Part Number Company · Greenville, SC, USA

We are a Koyo / JTEKT bearing supplier. We match your bearing by its reference, then quote it in writing.

Part Number Company supplies Koyo / JTEKT bearings to industrial equipment and replacement-part buyers worldwide from Greenville, South Carolina. Send the marking on the bearing body, the packaging label or the equipment manual, and we connect it to a clear bearing request.

KOYO body marking JTEKT packaging reference MANUAL equipment reference
Rows of boxed industrial roller bearings on warehouse shelves

2 brandsKoyo and JTEKT, either name on your record

What we do

We supply Koyo / JTEKT bearings to industrial equipment users and replacement-part buyers around the world, and we identify the correct part from the reference you already have.

Through koyojtekt.com, buyers send what is in front of them — a body marking, a packaging label or a number from an equipment manual. We quote by part number or marking and provide model identification when the reference is unclear.

  • Product range: tapered, cylindrical and spherical roller bearings, deep groove, angular contact and thrust ball bearings, needle roller bearings.
  • Application-specific automotive references: quoted with vehicle or equipment identification details.
  • Model identification: superseded, worn or mismatched references matched to a current part.
View our bearing product range →
Technician holding a tapered roller bearing next to a gearbox housing

How a request starts

Marking · packaging ref · photo · equipment info

Why only two brands: Koyo and JTEKT

We focus on Koyo and JTEKT because buyers find both names on the same kind of part, and matching by part number only works when both names are handled together.

QWhy do Koyo and JTEKT appear on the same part records?

AOld bearing markings and maintenance records may say Koyo, while a purchasing system searches under JTEKT. Buyers then cannot tell whether both names point to the same part. We handle enquiries under either name.

QWhat if the body marking and the packaging label differ?

ASend both. We compare the bearing body marking, the packaging reference and any equipment manual number, then confirm which reference the quote is based on.

QWhy not cover more brands?

ASuperseded numbers, worn markings and end-of-life references are easier to resolve inside one brand system. Staying with Koyo / JTEKT keeps identification by part number accurate.

Who we work for

We work with three roles on every replacement-bearing request: the person who identifies the part, the person who buys it and the person who fits it.

Specialist measuring a bearing with a caliper at a parts counter

Parts identification specialist

Provides

  • Old markings and legacy part numbers
  • Photos and dimensions of worn parts

Cares about

  • Matching old markings to the current reference
  • Clear interchange details for superseded numbers
Purchasing manager reviewing boxed bearings on a warehouse pallet

Aftermarket purchasing manager

Provides

  • Mixed Koyo / JTEKT part-number lists
  • Quantities, destination and required dates

Cares about

  • Confirming the application and exact part
  • Complete written quotes with less follow-up
Workshop mechanic fitting a wheel bearing into a vehicle hub

Workshop service manager

Provides

  • Equipment or vehicle identification details
  • Information on where the bearing is fitted

Cares about

  • A replacement that fits the same housing
  • Consistent, predictable delivery

Customers we supply

Our Koyo / JTEKT bearing buyers range from industrial replacement-part buyers and gearbox users to automotive aftermarket workshops and bearing distributors.

Industrial machinery line with exposed shafts and bearing housings

Equipment & replacement-part buyers

Industrial equipment and general machinery spares.

Transmission & gearbox users

Drivetrain, gearbox and shaft applications.

Heavy-duty machinery users

Heavy-load assemblies running spherical roller bearings.

Automotive aftermarket

Vehicle-related parts, quoted with vehicle details.

Repair workshops

Specialist machinery maintenance and repair shops.

Distributor stockroom with stacked bearing boxes on racking

Bearing distributors & industrial suppliers

Accurate part-number enquiries for their own customers.

How we work: five principles

Every Koyo / JTEKT bearing quote we issue follows the same five principles, so you know what we need and what you will receive.

Hands checking a boxed bearing against a delivery order at a receiving bench
  1. 01

    Start from your existing marking

    Body marking, packaging reference, manual number or a clear photo — we work from what you already have.

  2. 02

    Complete identification before quoting

    We confirm the exact execution, whether a complete assembly is needed and whether a clearly marked alternative is acceptable.

  3. 03

    Technical changes need buyer approval

    No substitution or specification change goes ahead without your approval.

  4. 04

    Written quotes with full terms

    Reference, quantity, price and currency, stock status, estimated lead time, validity, and applicable shipping and tax terms. Ask us which product documents can be supplied.

  5. 05

    Check on receipt

    Check labels, quantity and condition on arrival. If anything differs, send the order number and photos and we will follow up.

Where our customers are

Part Number Company ships Koyo / JTEKT bearings worldwide from Greenville, SC. Customer feedback has come from the USA, Japan, Australia, Austria, Mexico and the UAE.

Greenville, SC USA (CA) Mexico Austria UAE Japan Sydney, Australia
  • USA (CA)
  • Japan
  • Australia
  • Austria
  • Mexico
  • UAE

What our customers say

Our customers mention three things most often: superseded numbers resolved, end-of-life parts flagged early and worn markings identified correctly.

When we had a Koyo bearing with a part number that had been superseded, they identified the current JTEKT replacement and the interchange details. We ordered the new reference and it dropped into the same housing. No modification needed.
Yuki Tanaka · Tanaka Precision Parts, Japan
The supplier flagged two references that were approaching end-of-life and suggested the replacement series. That kind of proactive notice is valuable for long-term planning.
Klaus Weber · Weber Industrieteile, Austria
The part number was partially worn. We sent a photo and the dimensions, and they identified the correct Koyo reference. The bearing arrived and fit perfectly.
Jorge Ramirez · Talleres Ramirez, Mexico

Contact Part Number Company

You can reach our Koyo / JTEKT bearing team by WhatsApp or email. Include your markings, quantities, destination country and postcode, and your required date.

Address

8 Research Drive, Greenville, SC 29627, USA

Email

info@koyojtekt.com

WhatsApp

+1(740)407

Assorted roller and ball bearings laid out on a steel workbench

Send Us Your Koyo / JTEKT References

Send your references and we will confirm the part and reply with a written quote. Koyo or JTEKT, body marking or packaging label, single part or mixed list — we confirm identification first.

  • All Koyo / JTEKT markings and packaging references
  • Equipment or vehicle identification details
  • Quantity, destination country and postcode, required date