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KOYO Needle Roller Bearing: B, 45, 1/4 in Bore, 7/16 in OD, Full Complement - Drawn-Cup Needle Roller Bearings
KOYODrawn-Cup Needle Roller Bearings

KOYO Needle Roller Bearing: B, 45, 1/4 in Bore, 7/16 in OD, Full Complement

The KOYO B-45 is a drawn-cup needle roller bearing with a single row of full-complement rollers. It has a 1/4 in bore and a 7/16 in OD, is open and made of alloy steel, and uses the inch system of measurement.

SKU 3G-OTH-103151

Brand
KOYO
Item
Needle Roller Bearing: B, 45, 1/4 in Bore, 7/16 in OD, Full Complement
Category
Drawn-Cup Needle Roller Bearings
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Technical Specifications

KOYO
Manufacturer Part Number
B-45
Type
45, Full Complement, Open, Alloy Steel, B-45
Bore
1/4 in
OD
7/16 in
Bearing Design
B
Number of Rows
One
Full Complement
Yes
System of Measurement
Inch
Bearing Industry Number
45
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KOYO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KOYO B-45 is a drawn-cup needle roller bearing with a single row of full-complement rollers. It has a 1/4 in bore and a 7/16 in OD, is open and made of alloy steel, and uses the inch system of measurement.

Frequently Asked Questions

What is the KOYO B-45 needle roller bearing used for?

The KOYO B-45 drawn-cup needle roller bearing is used in applications requiring high radial load capacity in a compact, open design. It is common in automotive transmissions, pumps, and industrial gearboxes where space is limited and full-complement rollers maximize load-carrying ability.

What are the specifications of the KOYO B-45 bearing?

The KOYO B-45 is a single-row, full-complement drawn-cup needle roller bearing with a 1/4 in bore and 7/16 in OD. It is open, made of alloy steel, and uses the inch system. The manufacturer part number is B-45 and the bearing industry number is 45.

Where to buy KOYO B-45 bearings worldwide?

3G Electric supplies the KOYO B-45 bearing worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this KOYO bearing to any country.

How to select the correct KOYO drawn-cup needle roller bearing?

To select the correct KOYO drawn-cup needle roller bearing, match the bore and OD to your shaft and housing dimensions. The B-45 has a 1/4 in bore and 7/16 in OD. Ensure the bearing design (B) and full-complement roller set meet your load and speed requirements. Consult KOYO specifications for fit and clearance.

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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