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KOYO Needle Roller Bearing: M-1, 16121, 1 in Bore, 1 1/4 in OD, Full Complement - Drawn-Cup Needle Roller Bearings
KOYODrawn-Cup Needle Roller Bearings

KOYO Needle Roller Bearing: M-1, 16121, 1 in Bore, 1 1/4 in OD, Full Complement

The KOYO M-1 is a drawn-cup needle roller bearing with a one-row, full-complement design. It has a 1-inch bore and a 1 1/4-inch outer diameter, is open and made of alloy steel, and uses inch-system measurements. The…

SKU 3G-OTH-107787

Also listed as: M16121 · M 16121

Brand
KOYO
Item
Needle Roller Bearing: M-1, 16121, 1 in Bore, 1 1/4 in OD, Full Complement
Category
Drawn-Cup Needle Roller Bearings
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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
M-16121
Type
16121, Full Complement, Open, Alloy Steel
Bore
1 in
OD
1 1/4 in
Bearing Design
M-1
Number of Rows
One
Full Complement
Yes
System of Measurement
Inch
Bearing Industry Number
16121

Technical Documents

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

Product Description

The KOYO M-1 is a drawn-cup needle roller bearing with a one-row, full-complement design. It has a 1-inch bore and a 1 1/4-inch outer diameter, is open and made of alloy steel, and uses inch-system measurements. The bearing industry number is 16121, with manufacturer part number M-16121.

Frequently Asked Questions

What is the KOYO M-1 needle roller bearing used for?

The KOYO M-1 drawn-cup needle roller bearing is used in industrial applications requiring high radial load capacity in a compact, inch-dimension envelope. Its full-complement design maximizes roller count, making it suitable for gearboxes, pumps, and material handling equipment where space is limited.

What are the specifications of the KOYO M-16121 bearing?

The KOYO M-16121 is a one-row, full-complement drawn-cup needle roller bearing with a 1 in bore and 1 1/4 in OD. It is open, made of alloy steel, and uses inch-system measurements. The bearing industry number is 16121, and the manufacturer part number is M-16121.

Where to buy KOYO M-16121 bearings worldwide?

3G Electric supplies the KOYO M-16121 needle roller bearing to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this inch-series drawn-cup bearing.

How to install a drawn-cup needle roller bearing like the KOYO M-1?

Install the KOYO M-1 drawn-cup bearing by pressing it into a properly sized housing bore using an arbor press. Ensure the shaft is clean and lubricated. Avoid hammering directly on the bearing. Follow standard practices for full-complement needle bearings to prevent roller skewing during installation.

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 drawn-cup 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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