Imperial Cylindrical Roller Bearing

LRJA1.1/8

1‑1/8" × 2‑1/2" × 5/8" · In Stock · Compatibility Verification Available

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When You Need This Bearing, You're Usually Solving a Problem

If you've landed on this page, you're probably not browsing for general information. You're looking for a specific imperial bearing for existing equipment, maintenance, or replacement.

The LRJA1.1/8 is an inch‑size cylindrical roller bearing with a 1‑1/8" bore, 2‑1/2" outside diameter, and 5/8" width. For hard‑to‑find or replacement requirements, the most important question is usually simple:

Is this actually the right bearing for my equipment?

That's why we focus on both the bearing and the verification process before you order.

Technical Specifications

What This Bearing Is

The LRJA1.1/8 is a single‑row imperial cylindrical roller bearing measuring 28.58 × 63.5 × 15.88 mm.

The LRJA configuration uses two integral flanges on the inner ring and one flange on the outer ring, allowing radial load support while permitting axial movement in one direction. This structure is commonly described for applications where controlled axial movement or thermal expansion needs to be accommodated.

Where This Bearing Is Used

• Gearboxes and electric motors

• Pumps and compressors

• Conveyors and material‑handling equipment

• Older or imported machinery using imperial bearing dimensions

• Industrial maintenance and OEM replacement applications

The exact suitability depends on the original bearing specification and operating conditions.

Need to Match an Existing LRJA1.1/8 Bearing?

For replacement applications, confirming the bearing is often more important than simply matching the model number.

Send us any of the following:

• Existing bearing part number

• Bearing dimensions

• Drawing

• Bearing photo

• Physical sample

• Equipment model number

We'll check the size, structure, and available cross‑reference before shipment.

If your original bearing carries a different brand or part number, send that information as well. We can check whether the dimensions and configuration correspond to the LRJA1.1/8 specification.

Don't have all the information? Send us whatever you have.
A photo, partial dimensions, or the old bearing number may be enough for us to start the identification.

Before You Order: What Most Buyers Want to Know

What if I need a different precision grade?
P0, P6, and P5 are available on request. Tell us your application requirements and we'll confirm the available option for your order.

How do I know whether it is available now?
The LRJA1.1/8 specification shown on this page is currently in stock. For urgent requirements, contact us before ordering and we'll confirm the current shipping schedule.

What if I'm not sure it will fit?
That's exactly why we recommend sending your original bearing number, dimensions, drawing, photo, or sample first.
Checking compatibility before shipment is much easier than discovering a mismatch after installation.

What if my original bearing has another brand name?
Send us the original part number or a photo of the marking. We'll check the corresponding dimensions and configuration before recommending a replacement.

Why Buy From EKB?

Hard‑to‑find imperial bearings can create problems beyond the bearing itself: uncertain cross‑references, incorrect dimensions, long lead times, and costly repeat orders.

EKB focuses on difficult‑to‑source bearing requirements such as imperial, special‑dimension, and replacement bearings.

We help customers:

• Identify the bearing → Check the dimensions → Review the cross‑reference → Confirm availability

The goal is simple: help you buy the correct bearing the first time.

About EKB

EKB Bearing (Hebei Shuanghejincheng Bearing Co., Ltd.) operates an 18,000 m² factory with 13 automated production lines and 42 high‑precision testing units, with products exported to 66 countries.

Our manufacturing and inspection capabilities support bearing supply for OEM replacement and industrial maintenance applications.

Frequently Asked Questions

Q: What does the "A" in LRJA mean?

A: In the LRJA configuration, the designation corresponds to a bearing arrangement with two integral inner‑ring flanges and one outer‑ring flange, allowing axial movement in one direction while supporting radial loads.

Q: Can LRJA1.1/8 be used as a direct replacement for another brand?

A: It may be possible when the dimensions and bearing configuration match, but we recommend checking the original part number, dimensions, drawing, or sample before ordering.

Q: What are the dimensions of LRJA1.1/8?

A: The bearing dimensions are 1‑1/8" bore × 2‑1/2" outside diameter × 5/8" width, equivalent to approximately 28.58 × 63.5 × 15.88 mm.

Q: What if I don't know the bearing number?

A: Send us a photo, dimensions, or physical sample. We can start the identification process with whatever information you have.