We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
KOYO Inner Ring: 1 3/4 in Bore, 2.25 in OD, 1.5 in Overall Wd, Alloy Steel - Needle Roller Bearing Inner Rings
KOYONeedle Roller Bearing Inner Rings

KOYO Inner Ring: 1 3/4 in Bore, 2.25 in OD, 1.5 in Overall Wd, Alloy Steel

The KOYO Inner Ring is a needle roller bearing inner ring with a 1 3/4 in bore, 2.25 in OD, and 1.5 in overall width, made from alloy steel. This inch-system component, identified by manufacturer part number…

SKU 3G-OTH-104321

Also listed as: IR283624 · IR 283624

Brand
KOYO
Item
Inner Ring: 1 3/4 in Bore, 2.25 in OD, 1.5 in Overall Wd, Alloy Steel
Part Number
IR-283624
Category
Needle Roller Bearing Inner Rings
Available to Order
Also known as:IR-283624KOYO
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

KOYO
Manufacturer Part Number
IR-283624
Type
Alloy Steel, IR-283624
OD
2.25 in
Overall Wd
1.5 in
System of Measurement
Inch

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

KOYO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KOYO Inner Ring is a needle roller bearing inner ring with a 1 3/4 in bore, 2.25 in OD, and 1.5 in overall width, made from alloy steel. This inch-system component, identified by manufacturer part number IR-283624, is designed for use with compatible needle roller bearings.

Frequently Asked Questions

What is the KOYO Inner Ring IR-283624 used for?

The KOYO Inner Ring IR-283624 is a needle roller bearing inner ring used in industrial machinery and automotive applications. It provides a hardened raceway for needle rollers, supporting radial loads in compact assemblies such as gearboxes, pumps, and conveyor systems.

What are the specifications of the KOYO Inner Ring IR-283624?

The KOYO Inner Ring IR-283624 has a 1 3/4 in bore, 2.25 in OD, and 1.5 in overall width. It is made from alloy steel, uses the inch system of measurement, and is manufactured by KOYO under part number IR-283624.

Where to buy the KOYO Inner Ring IR-283624 worldwide?

You can source the KOYO Inner Ring IR-283624 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the component reaches your facility reliably.

How to select the correct KOYO Inner Ring for a needle roller bearing?

To select the correct KOYO inner ring, match the bore size to your shaft diameter, the OD to the bearing housing, and the overall width to the needle roller assembly. For the IR-283624, verify the 1 3/4 in bore and 2.25 in OD against your application's requirements.

Used in

Common applications for KOYO
Automotive transmissions — KOYO drawn-cup needle roller bearings (B-44) for gear support in compact gearbox assemblies.
Conveyor systems — KOYO heavy-duty needle roller bearings (HJ-202820) for radial load handling in roller conveyors.
Printing machinery — KOYO needle roller thrust bearings (NTA-3648) for axial positioning of rotating cylinders.
Industrial pumps — KOYO thrust bearing washers (TRD-3648) for axial load distribution in pump shafts.
Indexing tables — KOYO single-direction clutch and bearing assemblies (FCB-20) for precise indexing and overrunning control.
Material handling equipment — KOYO drawn-cup needle roller bearings (BH-2020) for compact wheel or roller supports.
Not sure this is the right part? Photo-identify it

KOYO Products

3G Electric supplies KOYO needle roller bearing inner rings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from KOYO

View all KOYO parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first