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SMITH BEARING Inner Ring: 4 in Bore, 4.998 in OD, 2.26 in Overall Wd, Alloy Steel - Needle Roller Bearing Inner Rings
SMITH BEARINGNeedle Roller Bearing Inner Rings

SMITH BEARING Inner Ring: 4 in Bore, 4.998 in OD, 2.26 in Overall Wd, Alloy Steel

The SMITH BEARING Inner Ring: 4 in Bore is an inch-system needle roller bearing inner ring made of alloy steel. It has a 4 in bore, 4.998 in OD, and 2.26 in overall width, with manufacturer part number IRR-4.

SKU 3G-OTH-103308

Brand
SMITH BEARING
Item
Inner Ring: 4 in Bore, 4.998 in OD, 2.26 in Overall Wd, Alloy Steel
Category
Needle Roller Bearing Inner Rings
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Technical Specifications

SMITH BEARING
Manufacturer Part Number
IRR-4
Type
Alloy Steel, IRR-4
OD
4.998 in
Overall Wd
2.26 in
System of Measurement
Inch
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SMITH BEARING Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SMITH BEARING Inner Ring: 4 in Bore is an inch-system needle roller bearing inner ring made of alloy steel. It has a 4 in bore, 4.998 in OD, and 2.26 in overall width, with manufacturer part number IRR-4.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SMITH BEARING Inner Ring IRR-4 used for?

The SMITH BEARING Inner Ring IRR-4 is used as a precision track for needle rollers in heavy-duty rotating assemblies. It is commonly applied in industrial gearboxes, conveyor systems, and machine tool spindles where inch-system dimensions and alloy steel durability are required.

What are the specifications of the SMITH BEARING Inner Ring IRR-4?

The SMITH BEARING Inner Ring IRR-4 has a 4 in bore, 4.998 in OD, and 2.26 in overall width. It is made of alloy steel, uses the inch system of measurement, and is manufactured by SMITH BEARING. The part number is IRR-4.

Where to buy the SMITH BEARING Inner Ring IRR-4 worldwide?

You can source the SMITH BEARING Inner Ring IRR-4 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.

How to install the SMITH BEARING Inner Ring IRR-4?

To install the SMITH BEARING Inner Ring IRR-4, press the ring onto a clean, properly sized shaft using an arbor press or hydraulic tool. Ensure the bore and shaft are free of burrs and lubricated lightly. Avoid hammering directly to prevent damage to the alloy steel surface.

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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