We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
KOYO Inner Ring: 3/4 in Bore, 1 in OD, 0.765 in Overall Wd, Alloy Steel - Needle Roller Bearing Inner Rings
KOYONeedle Roller Bearing Inner Rings

KOYO Inner Ring: 3/4 in Bore, 1 in OD, 0.765 in Overall Wd, Alloy Steel

The KOYO IR-1212 is an inch-system needle roller bearing inner ring with a 3/4 in bore, 1 in OD, and 0.765 in overall width, made from alloy steel. This component is designed for use with compatible needle roller…

SKU 3G-OTH-104352

Brand
KOYO
Item
Inner Ring: 3/4 in Bore, 1 in OD, 0.765 in Overall Wd, Alloy Steel
Category
Needle Roller Bearing Inner Rings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

KOYO
Manufacturer Part Number
IR-1212
System of Measurement
Inch
View Full Spec Sheet

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 IR-1212 is an inch-system needle roller bearing inner ring with a 3/4 in bore, 1 in OD, and 0.765 in overall width, made from alloy steel. This component is designed for use with compatible needle roller bearings to provide a hardened raceway surface.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the KOYO IR-1212 inner ring used for?

The KOYO IR-1212 is a needle roller bearing inner ring used to provide a hardened raceway surface for compatible needle roller bearings in rotating or oscillating applications. It is commonly found in industrial machinery, gearboxes, and automotive drivetrains where space is limited and high load capacity is required.

What are the specifications of the KOYO IR-1212?

The KOYO IR-1212 is an inch-system needle roller bearing inner ring with a 3/4 in bore, 1 in OD, and 0.765 in overall width. It is made from alloy steel and has manufacturer part number IR-1212. This component is designed to be used with compatible needle roller bearings.

Where to buy the KOYO IR-1212 worldwide?

3G Electric supplies the KOYO IR-1212 needle roller bearing inner ring to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this component.

How to select the correct inner ring for a needle roller bearing?

To select the correct inner ring, match the bore diameter to your shaft size, the OD to the bearing inner diameter, and the width to the bearing assembly. The KOYO IR-1212 has a 3/4 in bore, 1 in OD, and 0.765 in width. Always verify the system of measurement (inch vs metric) and the manufacturer part number.

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.

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 →

Similar products

Matched by specification & description
KOYO Inner Ring: 1 3/4 in Bore, 2.25 in OD, 1.5 in Overall Wd, Alloy Steel, IR-283624. Key specifications — Manufacturer Part Number: IR-283624; System of Measurement: Inch; Brand: KOYO.
KOYO
KOYO Inner Ring: 1 3/4 in Bore, 2.25 in OD, 1.5 in Overall Wd, Alloy Steel, IR-283624. Key specifications — Manufacturer Part Number: IR-283624; System of Measurement: Inch; Brand: KOYO.
KOYO Needle Roller Bearing: B, 1110, 11/16 in Bore, 7/8 in OD, Full Complement, Open, Alloy Steel (MPN B-1110). Key specifications — Number of Rows: One; Full Complement: Yes; Manufacturer Part Number: B-1110; System of Measurement: Inch; Bearing Design: B; Bearing Industry Number: 1110; Brand: KOYO.
KOYO
KOYO Needle Roller Bearing: B, 1110, 11/16 in Bore, 7/8 in OD, Full Complement, Open, Alloy Steel (MPN B-1110). Key specifications — Number of Rows: One; Full Complement: Yes; Manufacturer Part Number: B-1110; System of Measurement: Inch; Bearing Design: B; Bearing Industry Number: 1110; Brand: KOYO.
KOYO Needle Roller Bearing: FC, 8, 8 mm Bore, 14 mm OD, Open, 12 mm Overall Wd, Alloy Steel, FC-8. Key specifications — Number of Rows: One; Full Complement: No; Manufacturer Part Number: FC-8; System of Measurement: Metric; Bearing Design: FC; Bearing Industry Number: 8; Brand: KOYO.
KOYO
KOYO Needle Roller Bearing: FC, 8, 8 mm Bore, 14 mm OD, Open, 12 mm Overall Wd, Alloy Steel, FC-8. Key specifications — Number of Rows: One; Full Complement: No; Manufacturer Part Number: FC-8; System of Measurement: Metric; Bearing Design: FC; Bearing Industry Number: 8; Brand: KOYO.
KOYO Needle Roller Bearing: B, 65, 3/8 in Bore, 9/16 in OD, Full Complement, Open, Alloy Steel, B-65. Key specifications — Number of Rows: One; Full Complement: Yes; Manufacturer Part Number: B-65; System of Measurement: Inch; Bearing Design: B; Bearing Industry Number: 65; Brand: KOYO.
KOYO
KOYO Needle Roller Bearing: B, 65, 3/8 in Bore, 9/16 in OD, Full Complement, Open, Alloy Steel, B-65. Key specifications — Number of Rows: One; Full Complement: Yes; Manufacturer Part Number: B-65; System of Measurement: Inch; Bearing Design: B; Bearing Industry Number: 65; Brand: KOYO.
KOYO Needle Roller Bearing: M-1, 24161, 1 1/2 in Bore, 1 7/8 in OD, Full Complement, Open, M-24161. Key specifications — Number of Rows: One; Full Complement: Yes; Manufacturer Part Number: M-24161; System of Measurement: Inch; Bearing Design: M-1; Bearing Industry Number: 24161; Brand: KOYO.
KOYO
KOYO Needle Roller Bearing: M-1, 24161, 1 1/2 in Bore, 1 7/8 in OD, Full Complement, Open, M-24161. Key specifications — Number of Rows: One; Full Complement: Yes; Manufacturer Part Number: M-24161; System of Measurement: Inch; Bearing Design: M-1; Bearing Industry Number: 24161; Brand: KOYO.

More from KOYO

View all KOYO parts →
KOYO Inner Ring: 1 in Bore, 1.25 in OD, 1 in Overall Wd, Alloy Steel, IR-162016. Key specifications — Manufacturer Part Number: IR-162016; System of Measurement: Inch; Brand: KOYO.
KOYO
KOYO Inner Ring: 1 in Bore, 1.25 in OD, 1 in Overall Wd, Alloy Steel, IR-162016. Key specifications — Manufacturer Part Number: IR-162016; System of Measurement: Inch; Brand: KOYO.
KOYO Inner Ring: 1/2 in Bore, 0.75 in OD, 0.765 in Overall Wd, Alloy Steel, IR-812. Key specifications — Manufacturer Part Number: IR-812; System of Measurement: Inch; Brand: KOYO.
KOYO
KOYO Inner Ring: 1/2 in Bore, 0.75 in OD, 0.765 in Overall Wd, Alloy Steel, IR-812. Key specifications — Manufacturer Part Number: IR-812; System of Measurement: Inch; Brand: KOYO.
KOYO Inner Ring: 1 1/8 in Bore, 1.375 in OD, 1.015 in Overall Wd, Alloy Steel, IR-1816. Key specifications — Manufacturer Part Number: IR-1816; System of Measurement: Inch; Brand: KOYO.
KOYO
KOYO Inner Ring: 1 1/8 in Bore, 1.375 in OD, 1.015 in Overall Wd, Alloy Steel, IR-1816. Key specifications — Manufacturer Part Number: IR-1816; System of Measurement: Inch; Brand: KOYO.
KOYO Inner Ring: 1 1/4 in Bore, 1.5 in OD, 1.265 in Overall Wd, Alloy Steel, IR-2020. Key specifications — Manufacturer Part Number: IR-2020; System of Measurement: Inch; Brand: KOYO.
KOYO
KOYO Inner Ring: 1 1/4 in Bore, 1.5 in OD, 1.265 in Overall Wd, Alloy Steel, IR-2020. Key specifications — Manufacturer Part Number: IR-2020; System of Measurement: Inch; Brand: KOYO.
KOYO Inner Ring: 1 in Bore, 1.25 in OD, 1.015 in Overall Wd, Alloy Steel, IR-1616. Key specifications — Manufacturer Part Number: IR-1616; System of Measurement: Inch; Brand: KOYO.
KOYO
KOYO Inner Ring: 1 in Bore, 1.25 in OD, 1.015 in Overall Wd, Alloy Steel, IR-1616. Key specifications — Manufacturer Part Number: IR-1616; System of Measurement: Inch; Brand: KOYO.
KOYO Inner Ring: 3/4 in Bore, 1 in OD, 1 in Overall Wd, Alloy Steel, IR-121616. Key specifications — Manufacturer Part Number: IR-121616; System of Measurement: Inch; Brand: KOYO.
KOYO
KOYO Inner Ring: 3/4 in Bore, 1 in OD, 1 in Overall Wd, Alloy Steel, IR-121616. Key specifications — Manufacturer Part Number: IR-121616; System of Measurement: Inch; Brand: KOYO.
KOYO Inner Ring: 1 3/16 in Bore, 1.5 in OD, 1.015 in Overall Wd, Alloy Steel, IR-1916. Key specifications — Manufacturer Part Number: IR-1916; System of Measurement: Inch; Brand: KOYO.
KOYO
KOYO Inner Ring: 1 3/16 in Bore, 1.5 in OD, 1.015 in Overall Wd, Alloy Steel, IR-1916. Key specifications — Manufacturer Part Number: IR-1916; System of Measurement: Inch; Brand: KOYO.
KOYO Inner Ring: 5/8 in Bore, 0.875 in OD, 1.015 in Overall Wd, Alloy Steel, IR-1016. Key specifications — Manufacturer Part Number: IR-1016; System of Measurement: Inch; Brand: KOYO.
KOYO
KOYO Inner Ring: 5/8 in Bore, 0.875 in OD, 1.015 in Overall Wd, Alloy Steel, IR-1016. Key specifications — Manufacturer Part Number: IR-1016; System of Measurement: Inch; Brand: KOYO.