Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
SMITH BEARING Inner Ring: 1 3/8 in Bore, 1.749 in OD, 1.26 in Overall Wd, Alloy Steel - Needle Roller Bearing Inner Rings
SMITH BEARINGNeedle Roller Bearing Inner Rings

SMITH BEARING Inner Ring: 1 3/8 in Bore, 1.749 in OD, 1.26 in Overall Wd, Alloy Steel

The SMITH BEARING Inner Ring (SKU 49ER03) is an inch-system needle roller bearing inner ring with a 1 3/8 in bore, 1.749 in OD, and 1.26 in overall width, made from alloy steel. This IRR-1-3/8-2 component is designed…

SKU 3G-OTH-102254

Brand
SMITH BEARING
Item
Inner Ring: 1 3/8 in Bore, 1.749 in OD, 1.26 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

SMITH BEARING
Manufacturer Part Number
IRR-1-3/8-2
Type
Alloy Steel, IRR-1-3/8-2
OD
1.749 in
Overall Wd
1.26 in
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

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

Product Description

The SMITH BEARING Inner Ring (SKU 49ER03) is an inch-system needle roller bearing inner ring with a 1 3/8 in bore, 1.749 in OD, and 1.26 in overall width, made from alloy steel. This IRR-1-3/8-2 component is designed for use with compatible needle roller bearings.

Frequently Asked Questions

What is the SMITH BEARING Inner Ring IRR-1-3/8-2 used for?

The SMITH BEARING Inner Ring IRR-1-3/8-2 is a needle roller bearing inner ring used in industrial machinery to provide a hardened raceway for needle rollers. It supports radial loads in applications such as gearboxes, pumps, and conveyor systems where compact bearing arrangements are required.

What are the specifications of the SMITH BEARING Inner Ring IRR-1-3/8-2?

The SMITH BEARING Inner Ring IRR-1-3/8-2 has a 1 3/8 in bore, 1.749 in OD, and 1.26 in overall width. It is made from alloy steel and uses an inch system of measurement. The manufacturer part number is IRR-1-3/8-2, and it is designed for use with compatible needle roller bearings.

Where to buy SMITH BEARING Inner Ring IRR-1-3/8-2 worldwide?

You can source the SMITH BEARING Inner Ring IRR-1-3/8-2 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 component.

How to select the correct SMITH BEARING inner ring for an application?

To select the correct SMITH BEARING inner ring, match the bore size to your shaft diameter, the OD to the housing bore, and the width to the bearing assembly. The IRR-1-3/8-2 is an inch-system ring with a 1 3/8 in bore. Ensure compatibility with the needle roller bearing series and load requirements.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
SMITH BEARING
SMITH BEARING
SMITH BEARING Inner Ring: 3 1/8 in Bore, 3.748 in OD, 2.01 in Overall Wd, Alloy Steel, IRR-3-1/8. Key specifications — Manufacturer Part Number: IRR-3-1/8; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING
SMITH BEARING Inner Ring: 3 in Bore, 3.498 in OD, 1.76 in Overall Wd, Alloy Steel, IRR-3-1. Key specifications — Manufacturer Part Number: IRR-3-1; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING
SMITH BEARING Inner Ring: 1 1/2 in Bore, 1.749 in OD, 1.26 in Overall Wd, Alloy Steel, IRR-1-1/2. Key specifications — Manufacturer Part Number: IRR-1-1/2; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING
SMITH BEARING Inner Ring: 1 1/2 in Bore, 1.749 in OD, 1.01 in Overall Wd, Alloy Steel, IRR-1-1/2-1. Key specifications — Manufacturer Part Number: IRR-1-1/2-1; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING
SMITH BEARING Inner Ring: 3 7/8 in Bore, 4.498 in OD, 2.26 in Overall Wd, Alloy Steel, IRR-3-7/8. Key specifications — Manufacturer Part Number: IRR-3-7/8; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING Inner Ring: 1 5/8 in Bore, 1.936 in OD, 1.26 in Overall Wd, Alloy Steel, IRR-1-5/8-3. Key specifications — Manufacturer Part Number: IRR-1-5/8-3; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING Inner Ring: 1 5/8 in Bore, 1.936 in OD, 1.26 in Overall Wd, Alloy Steel, IRR-1-5/8-3. Key specifications — Manufacturer Part Number: IRR-1-5/8-3; System of Measurement: Inch; Brand: SMITH BEARING.

More from SMITH BEARING

View all SMITH BEARING parts →
SMITH BEARING
SMITH BEARING
SMITH BEARING Inner Ring: 1 3/4 in Bore, 2.248 in OD, 1.51 in Overall Wd, Alloy Steel, IRR-1-3/4-2. Key specifications — Manufacturer Part Number: IRR-1-3/4-2; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING Inner Ring: 2 1/4 in Bore, 2.748 in OD, 1.76 in Overall Wd, Alloy Steel, IRR-2-1/4. Key specifications — Manufacturer Part Number: IRR-2-1/4; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING Inner Ring: 2 1/4 in Bore, 2.748 in OD, 1.76 in Overall Wd, Alloy Steel, IRR-2-1/4. Key specifications — Manufacturer Part Number: IRR-2-1/4; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING Inner Ring: 3 in Bore, 3.498 in OD, 2.01 in Overall Wd, Alloy Steel, IRR-3. Key specifications — Manufacturer Part Number: IRR-3; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING Inner Ring: 3 in Bore, 3.498 in OD, 2.01 in Overall Wd, Alloy Steel, IRR-3. Key specifications — Manufacturer Part Number: IRR-3; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING Inner Ring: 1 3/8 in Bore, 1.624 in OD, 1.26 in Overall Wd, Alloy Steel, IRR-1-3/8. Key specifications — Manufacturer Part Number: IRR-1-3/8; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING Inner Ring: 1 3/8 in Bore, 1.624 in OD, 1.26 in Overall Wd, Alloy Steel, IRR-1-3/8. Key specifications — Manufacturer Part Number: IRR-1-3/8; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING
SMITH BEARING Inner Ring: 2 1/4 in Bore, 2.998 in OD, 1.51 in Overall Wd, Alloy Steel, IRR-2-1/2-1. Key specifications — Manufacturer Part Number: IRR-2-1/2-1; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING Inner Ring: 1 in Bore, 1.249 in OD, 1.26 in Overall Wd, Alloy Steel, IRR-1-2. Key specifications — Manufacturer Part Number: IRR-1-2; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING Inner Ring: 1 in Bore, 1.249 in OD, 1.26 in Overall Wd, Alloy Steel, IRR-1-2. Key specifications — Manufacturer Part Number: IRR-1-2; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING Inner Ring: 1 1/4 in Bore, 1.499 in OD, 1.26 in Overall Wd, Alloy Steel, IRR-1-1/4. Key specifications — Manufacturer Part Number: IRR-1-1/4; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING Inner Ring: 1 1/4 in Bore, 1.499 in OD, 1.26 in Overall Wd, Alloy Steel, IRR-1-1/4. Key specifications — Manufacturer Part Number: IRR-1-1/4; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING Inner Ring: 4 1/4 in Bore, 4.998 in OD, 2.26 in Overall Wd, Alloy Steel, IRR-4-1/4. Key specifications — Manufacturer Part Number: IRR-4-1/4; System of Measurement: Inch; Brand: SMITH BEARING.
SMITH BEARING
SMITH BEARING Inner Ring: 4 1/4 in Bore, 4.998 in OD, 2.26 in Overall Wd, Alloy Steel, IRR-4-1/4. Key specifications — Manufacturer Part Number: IRR-4-1/4; System of Measurement: Inch; Brand: SMITH BEARING.