Gearbox Rebuild ★★★★★ 5.0
"Our gearbox rebuild shop uses Koyo tapered and cylindrical roller bearings from jpkoyo.com. Every bearing matches the JTEKT execution we specify, and our rebuilt gearboxes are running longer between overhauls."
CASE FILE Koyo / JTEKT bearings · Gearbox & transmission buyers
How Gearbox and Transmission Buyers Use Our Koyo Bearing Supply
Six buyers in Italy, Egypt, Poland, Brazil, South Africa and Japan explain how Koyo Bearings: Source Factory Direct Sales, an authorized Koyo / JTEKT bearing supplier based in Hong Kong, checks references before quoting and supplies genuine product for rebuilds, urgent repairs and assembly lines.
- Countries6
- Published reviews6
- Rating range★4.9–5.0
- BrandKoyo
SHEET 01 · Where our buyers run their gearboxes
Koyo bearing buyers across four continents
Our reviewed customers are gearbox rebuilders, steel plants, drive companies, assembly lines and repair workshops in six countries. Tap a marker to see the buyer and their industry.
ITALY
Romano Riduttori S.r.l.
Gearbox rebuild shop
POLAND
Nowak Napędy Przemysłowe
Industrial transmissions
EGYPT
Khalil Steel Works
Steel plant conveyor gearboxes
BRAZIL
Almeida Transmissões
Gearbox assembly line
SOUTH AFRICA
Botha Transmissions
Transmission repair workshop
JAPAN
Mori Drive Systems
Drive assemblies
- ITGearbox rebuild
- EGSteel plant conveyor
- PLTransmission company
- BRAssembly line
- ZARepair workshop
- JPDrive systems
SHEET 02 · Verbatim customer reviews
What gearbox and transmission buyers say about our Koyo bearings
Buyers rate Koyo Bearings: Source Factory Direct Sales between ★4.9 and ★5.0 for correct Koyo references, genuine JTEKT product and delivery on agreed dates. Reviews are reproduced word for word.
Steel Plant Conveyor ★★★★★ 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."
Transmission Company ★★★★★ 5.0
"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."
Assembly Line ★★★★★ 4.9
"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."
Repair Workshop ★★★★★ 5.0
"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."
Drive Systems ★★★★★ 5.0
"The Koyo needle roller bearings and tapered bearings for our drive assembly were supplied exactly to specification. Our engineer checked the fit on arrival and installation went without modification."
SHEET 03 · Three cases, taken apart
Problem, method and result in three Koyo gearbox bearing orders
Each case below is drawn only from what the customer wrote: a mixed shaft list, an urgent conveyor stoppage, and Koyo orders split across several suppliers.
CASE A · Poland · Transmissions
Floating and locating positions on one mixed list
- PROBLEMA mixed list arrived with floating and locating bearing positions together.
- OUR METHODWe confirmed which Koyo series fit each shaft before quoting.
- RESULT"No wrong deliveries in a year of orders."
CASE B · Egypt · Steel plant
Conveyor gearbox down, correct reference needed urgently
- PROBLEMA conveyor gearbox failed and Koyo spherical roller bearings were needed urgently.
- OUR METHODWe identified the correct Koyo reference and shipped the same day.
- RESULTThe gearbox was back in service within the week.
CASE C · South Africa · Repair workshop
Koyo orders split across several suppliers
- PROBLEMKoyo orders were previously split across several suppliers.
- OUR METHODOne supplier consolidates the lists and matches references accurately.
- RESULTBearings received are "always genuine JTEKT product."
Have a mixed list with drive-end, non-drive-end, floating or locating positions?
Send Your Shaft List on WhatsAppSHEET 04 · By buyer type
What each type of Koyo bearing buyer checks first
OEM and assembly-line buyers check the specification, rebuild and repair shops check position and completeness, and distributors check line-item consistency. We order every quote around those checks.
01
OEM & assembly lines
- Full Koyo reference with suffix, not only matching dimensions
- Alternative references listed separately; technical changes need your approval
- Correct quantities, original packaging, delivery on the agreed date
02
Rebuild & repair workshops
- Bearing position confirmed per shaft: drive end, non-drive end, floating, locating
- Bearings, adapter sleeves and housings on one inquiry, so nothing is missing at overhaul
- Shutdown date stated up front so stock and lead time are quoted against it
03
Distributors
- Line-by-line quantities and prices with currency
- Quote validity, shipping and tax terms written out
- Repeat-order references kept identical to the previous order
SHEET 05 · Repeat orders
Repeat Koyo orders that match the last one, line by line
For distributors and repeat buyers, each new quote keeps the same full Koyo / JTEKT references and shows every quantity on its own line, so you can check it against your previous order before you approve it.
| Quote field | Why it matters on a repeat order |
|---|---|
| Product reference | Full suffix kept identical; any change is flagged for your approval |
| Quantity per line | Compare item by item with the last order |
| Price & currency | Commercial terms are comparable across orders |
| Stock & estimated lead time | Plan resale and customer delivery dates |
| Validity, shipping, tax, documents | States which product documents can actually be supplied |
On receipt, check labels, quantities and appearance. If anything differs, send the order number and photos and we will follow it up.
Questions before sending your list
What should I send if the Koyo suffix is missing?
Send a clear photo of the bearing markings, the equipment model and the bearing position, and note which items still need confirming. We complete the configuration and assembly details with you before quoting, and any technical change needs your approval.
Can bearings and mounting parts go on one inquiry?
Yes. List the bearings, adapter sleeves and housings as separate lines on the same inquiry. That way the full assembly is quoted together and no part is missing at overhaul.
SHEET 06 · Your turn
Join Them — Send Your Reference List
Send your list to Koyo Bearings: Source Factory Direct Sales on WhatsApp or by email. Include the equipment model, full Koyo suffix, bearing position, sleeve or housing references, quantities, destination country and postcode, and your required date.
Unit 1807, Tower 2, Grand Central Plaza, 128 Sha Tin Wai Road, Sha Tin, New Territories, Hong Kong