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KOYO Needle Roller Bearing: HJ, 122012, 3/4 in Bore, 1 1/4 in OD, Open - Heavy-Duty Needle Roller Bearings
KOYOHeavy-Duty Needle Roller Bearings

KOYO Needle Roller Bearing: HJ, 122012, 3/4 in Bore, 1 1/4 in OD, Open

The KOYO HJ-122012 is a heavy-duty needle roller bearing with a single row, open design, and a full complement of no. It has a 3/4 in bore, 1 1/4 in OD, and 0.75 in overall width, measured in inches. This bearing is…

SKU 3G-OTH-102705

Brand
KOYO
Item
Needle Roller Bearing: HJ, 122012, 3/4 in Bore, 1 1/4 in OD, Open
Category
Heavy-Duty Needle Roller Bearings
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Technical Specifications

KOYO
Manufacturer Part Number
HJ-122012
Type
122012, Open
Bore
3/4 in
OD
1 1/4 in
Overall Wd
0.75 in
Bearing Design
HJ
Number of Rows
One
Full Complement
No
System of Measurement
Inch
Bearing Industry Number
122012
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KOYO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KOYO HJ-122012 is a heavy-duty needle roller bearing with a single row, open design, and a full complement of no. It has a 3/4 in bore, 1 1/4 in OD, and 0.75 in overall width, measured in inches. This bearing is identified by the manufacturer part number HJ-122012 and bearing industry number 122012.

Frequently Asked Questions

What is the KOYO HJ-122012 needle roller bearing used for?

The KOYO HJ-122012 is a heavy-duty needle roller bearing designed for radial load support in compact spaces. It is commonly used in gearboxes, pumps, and industrial machinery where high load capacity and minimal cross-section are required. 3G Electric supplies this bearing globally for maintenance and OEM applications.

What are the specifications of the KOYO HJ-122012 bearing?

The KOYO HJ-122012 is a single-row, open-design needle roller bearing with a 3/4 in bore, 1 1/4 in OD, and 0.75 in overall width. It is an inch-series bearing with industry number 122012. This bearing does not have a full complement of rollers, offering controlled radial clearance for precision applications.

Where to buy the KOYO HJ-122012 bearing worldwide?

3G Electric sources and delivers the KOYO HJ-122012 needle roller bearing to customers worldwide. As a global industrial supplier, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this inch-series bearing for your maintenance or production needs.

How to install a KOYO HJ-122012 needle roller bearing?

Install the KOYO HJ-122012 by pressing the bearing into a properly sized housing bore using a press or arbor, applying force only to the outer ring. Ensure the shaft and housing are clean and lubricated. Use a suitable fitting tool to avoid damaging the rollers. 3G Electric can provide application support for this bearing.

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 heavy-duty needle roller bearings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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