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SMITH BEARINGNeedle Roller Bearing Inner Rings

SMITH BEARING Inner Ring: 3 1/8 in Bore, 3.748 in OD, 2.01 in Overall Wd, Alloy Steel

The SMITH BEARING Inner Ring (SKU 49ER33) is an inch-system needle roller bearing inner ring with a 3 1/8 in bore, 3.748 in OD, and 2.01 in overall width, made of alloy steel. This IRR-3-1/8 component is designed for…

SKU 3G-OTH-105913

Brand
SMITH BEARING
Item
Inner Ring: 3 1/8 in Bore, 3.748 in OD, 2.01 in Overall Wd, Alloy Steel
Category
Needle Roller Bearing Inner Rings
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Technical Specifications

SMITH BEARING
Manufacturer Part Number
IRR-3-1/8
Type
Alloy Steel, IRR-3-1/8
OD
3.748 in
Overall Wd
2.01 in
System of Measurement
Inch
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Technical Documents

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

Product Description

The SMITH BEARING Inner Ring (SKU 49ER33) is an inch-system needle roller bearing inner ring with a 3 1/8 in bore, 3.748 in OD, and 2.01 in overall width, made of alloy steel. This IRR-3-1/8 component is designed for use with compatible needle roller bearings.

Frequently Asked Questions

What is the SMITH BEARING Inner Ring IRR-3-1/8 used for?

The SMITH BEARING Inner Ring IRR-3-1/8 is a needle roller bearing inner ring used in industrial machinery that requires inch-system radial support. It is designed to pair with compatible needle roller bearings in applications such as gearboxes, pumps, and conveyor systems where compact, high-load capacity is needed.

What are the specifications of the SMITH BEARING Inner Ring IRR-3-1/8?

The SMITH BEARING Inner Ring IRR-3-1/8 has a 3 1/8 in bore, 3.748 in OD, and 2.01 in overall width. It is made of alloy steel and uses the inch system of measurement. The manufacturer part number is IRR-3-1/8, and it is designed for use with compatible needle roller bearings.

Where to buy SMITH BEARING Inner Ring IRR-3-1/8 worldwide?

You can source the SMITH BEARING Inner Ring IRR-3-1/8 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this inch-system needle roller bearing inner ring.

How to select the correct SMITH BEARING Inner Ring for a needle roller bearing assembly?

To select the correct SMITH BEARING Inner Ring, match the bore size (3 1/8 in), OD (3.748 in), and overall width (2.01 in) to your needle roller bearing's inner race requirements. Ensure the system of measurement is inch-based and the alloy steel material meets your load and speed conditions. Consult the bearing manufacturer's compatibility guide.

Used in

Common applications for SMITH BEARING
Packaging machinery — SMITH BEARING MCR series stud cam followers for cam actuation in carton erectors and case sealers.
Conveyor systems — SMITH BEARING HR series heavy stud cam followers for roller guidance in belt conveyors and chain drives.
Automated assembly lines — SMITH BEARING BYR series yoke cam followers for linear motion guides in pick-and-place units.
Food processing equipment — SMITH BEARING HR-2-1/4-XB-SS-FG stainless steel cam followers for washdown conveyor systems.
Material handling — SMITH BEARING BCR-7/8-X non-metallic cam followers for low-noise roller tracks in sortation systems.
Industrial printing presses — SMITH BEARING MCRV-90-SB track rollers for web guiding and tension control mechanisms.

SMITH BEARING Products

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

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