RLS 36 C3 Imperial Cylindrical Roller Bearing | 4‑1/2" × 8" × 1‑5/16" | In Stock

4‑1/2" × 8" × 1‑5/16" · C3 Clearance · In Stock · Compatibility Verification Available

Send us your bearing number, dimensions, photo, or sample — we'll help confirm the correct replacement before you order.

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When You Need This Bearing, You're Usually Not Browsing — You're Solving a Problem

A 4‑1/2" bore cylindrical roller bearing isn't something most local distributors stock. If you're here, you're likely dealing with a large piece of imperial‑dimensioned equipment — a gearbox, a motor, or heavy agricultural machinery — and you need to confirm this is the exact right part before you order, not after it arrives.

This page is built to answer that, not just list specs.

Technical Specifications

What This Bearing Is

The RLS 36 C3 is a single‑row imperial cylindrical roller bearing — 114.3 mm (4‑1/2") bore, 203.2 mm (8") outer diameter, 33.3 mm (1‑5/16") width, 4.67 kg, in stock in this exact configuration. RLS is a widely recognized imperial bearing series. Matching the complete specification — not just the bore size — is what determines whether a replacement actually fits correctly.

The C3 designation indicates greater internal radial clearance than standard. Whether C3 is the right choice depends on your operating temperature, shaft and housing fits, speed, and application conditions — if you're not sure, send us your application details and we'll confirm.

Where This Bearing Actually Gets Used

• Heavy agricultural machinery — large gearboxes and transmission assemblies built to imperial dimensions

• Industrial equipment using imperial standards — legacy or imported machinery originally specified in inch sizing

• Large‑frame motors and drive systems requiring a substantial bore size

Need to Match an Existing RLS 36 C3 Bearing?

This is where most buyers actually need help — not the size itself, but confirming it's the right size before ordering.

Send us any one of the following:

• Existing bearing part number

• Bearing dimensions

• A drawing

• A photo of the bearing

• A physical sample

• The equipment model number

We'll check the size, structure, and cross‑reference before shipment — not after.

RLS 36 is commonly interchanged with the equivalent size in FAG's LS series and RHP's LJ series. If your original bearing carries a different brand or part number, send it to us and we'll check the dimensions and cross‑reference before you order.

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 does the C3 clearance mean, and do I need it?"
C3 indicates greater internal radial clearance than standard. The correct clearance for your application depends on factors like operating temperature, shaft and housing fits, speed, and other operating conditions. If you're not sure whether your application needs C3 or standard clearance, tell us the operating conditions and we'll confirm.

"What if my application needs a different precision grade?"
P0, P6, and P5 are available. Tell us your operating requirements and we'll confirm the right grade for your application.

"How do I know this will actually arrive when I need it?"
This size is in stock now, in the open configuration. If your situation is time‑sensitive, tell us upfront — we'll give you a straight answer on shipping timing before you order, not a vague estimate.

"What if it turns out not to be compatible?"
This is exactly why we recommend sending your part number, drawing, or sample first. Verifying compatibility before shipment costs you five minutes. Discovering a mismatch after installation on a bearing this size costs you a repeat failure and a much larger round of downtime and labor.

Why Buy From EKB?

Hard‑to‑find imperial bearings often create more problems than the bearing itself — wrong dimensions, uncertain cross‑references, long lead times, and costly repeat orders, especially on large‑format bearings like this one where a mistake is expensive to reverse.

EKB focuses on exactly this kind of difficult‑to‑source bearing requirement. We help customers check dimensions, cross‑reference existing part numbers, and confirm availability before shipment — so you're not guessing based on a spec sheet alone.

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, exporting to 66 countries. Our manufacturing and inspection capabilities support consistent supply for OEM replacement and industrial maintenance applications.

Frequently Asked Questions

Q: What does the "C3" designation mean?
A: C3 indicates greater internal radial clearance than standard. The right choice depends on your operating temperature, fits, speed, and application conditions — send us your details and we'll confirm.

Q: What precision grades are available for the RLS 36 C3?
A: P0, P6, and P5 precision grades are available — let us know your application's precision requirements when ordering.

Q: Is the RLS 36 C3 available in sealed or shielded versions?
A: The current configuration in stock is open (unsealed). Contact us if your application requires a sealed or shielded variant.

Q: Can this bearing be used as a direct replacement across brands?
A: RLS 36 is commonly interchanged with FAG's LS series and RHP's LJ series. Send us your existing part number or drawing and we'll confirm compatibility before you order.

Need to Confirm RLS 36 C3?

Send us: Part Number · Dimensions · Photo · Drawing · Sample
We'll confirm: Size · Clearance · Cross‑Reference · Availability
— before you place the order.

[Request a Quote]