INA GYE25-KRR-B 25x52x34.1 Radial Insert Ball Bearing

INA GYE25-KRR-B 25x52x34.1 Radial Insert Ball Bearing

INA GYE25-KRR-B, currently designated GYE25-XL-KRR-B, is a radial insert ball bearing with a 25 mm bore, 52 mm spherical outside diameter and 34.1 mm inner-ring width. The bearing has a spherical outer ring, R seals on both sides and is located on the shaft using grub screws.

This combination distinguishes the GYE25 series from insert bearings using an eccentric locking collar or adapter sleeve.

Exact product identification:

INA + GYE25-KRR-B + GYE25-XL-KRR-B + 25x52x34.1 mm + radial insert ball bearing + spherical outer ring + grub-screw locking

INA GYE25-KRR-B – Technical Characteristics

INA GYE25-KRR-B Dimensions

The principal dimensions are:

d = 25 mm – bore diameter

Dsp = 52 mm – spherical outside diameter

B = 34.1 mm – width across the extended inner ring

Additional catalogue dimensions include:

C = 15 mm – outer ring width

C2 = 16.7 mm

S = 14.3 mm

The commonly used dimensional search format is therefore:

25x52x34.1 mm

This dimensional format is useful for identification, but it does not describe all of the geometry required to establish interchangeability.

What Is INA GYE25-KRR-B?

GYE25-KRR-B is a radial insert ball bearing designed for use in compatible bearing housings.

Unlike a conventional 6205-type deep groove ball bearing, the GYE25 has construction features specifically intended for housed-bearing arrangements.

These include:

extended inner ring

spherical outer ring surface

integrated shaft locking

and:

seals on both sides.

The bearing is therefore selected not only by bore and outside diameter but also by housing compatibility and locking method.

Spherical Outer Ring

INA GYE25-KRR-B has a spherical outside surface on the outer ring.

When fitted in a compatible housing with a matching spherical seat, this geometry allows the bearing unit to compensate for limited static misalignment caused by mounting.

This should not be confused with the internal self-aligning mechanism of a conventional self-aligning ball bearing.

In the GYE design, alignment capability is provided by the bearing-to-housing interface.

Shaft Location by Grub Screws

One of the most important features of the GYE25-KRR-B is its shaft locking system.

The inner ring is located on the shaft using grub screws.

This is a major difference compared with the previously described GRAE25-NPP-B, which uses an eccentric locking collar.

The shaft-locking method must therefore be checked when selecting an insert bearing.

GYE25-KRR-B vs GRAE25-NPP-B

Although both bearings have a 25 mm bore and 52 mm outside diameter, they are not the same design.

The key difference is shaft location:

GYE25-KRR-B – location by grub screws

GRAE25-NPP-B – location by eccentric locking collar

Their detailed widths and construction also differ.

Therefore, the shared 25x52 mm principal dimensions do not establish interchangeability.

R Seals on Both Sides

The KRR design uses R seals on both sides.

The R sealing arrangement combines protective sheet-steel elements with an elastomer sealing lip to protect the bearing interior and retain lubricant.

This sealing configuration is an integral part of the exact GYE25-KRR-B specification.

What Does KRR Mean?

For the GYE..-KRR-B series, KRR identifies the sealing configuration with R-type lip seals on both sides.

Therefore, KRR is not merely an optional search suffix. It forms part of the exact constructional identification of the bearing.

When sourcing a replacement, the complete suffix should be considered together with the bearing dimensions and shaft-locking system.

What Does B Mean?

In the GYE..-KRR-B series, B forms part of Schaeffler's design designation associated with the bearing's outer-ring configuration.

Suffixes are manufacturer-specific.

For this reason, the B suffix should not be interpreted using the designation systems of SKF, NTN, NSK, KOYO or other bearing manufacturers.

GYE25-KRR-B vs GYE25-XL-KRR-B

The bearing can be encountered under the designation:

GYE25-KRR-B

while current Schaeffler documentation identifies it as:

GYE25-XL-KRR-B.

The XL designation refers to the current X-life version.

For SEO, AI Search and spare-parts identification, both references are important because an engineer or buyer may search using:

an older bearing marking

an older machine manual

ERP purchasing history

or:

the current Schaeffler reference.

Basic Dynamic Load Rating Cr

The basic dynamic radial load rating is:

Cr = 14,900 N = 14.9 kN.

Cr is a standardized parameter used for bearing rating-life calculations under dynamic loading.

It should not be interpreted as a universal maximum permissible operating load.

Basic Static Load Rating C0r

The basic static radial load rating is:

C0r = 7,800 N = 7.8 kN.

This parameter is used when evaluating the bearing under static loading and comparable very-low-speed operating conditions.

Fatigue Limit Load Cur

The radial fatigue limit load is:

Cur = 395 N.

Cur is a calculation parameter used in advanced bearing-life assessment. It should not be confused with either the dynamic load rating Cr or static load rating C0r.

Selection and Interchangeability

When selecting a replacement for INA GYE25-KRR-B, verify:

bearing type – radial insert ball bearing

bore diameter d = 25 mm

spherical outside diameter Dsp = 52 mm

width B = 34.1 mm

outer ring width C = 15 mm

spherical outer ring surface

shaft location by grub screws

R seals on both sides

housing compatibility

load ratings

and:

mounting requirements.

A standard bearing with dimensions close to 25x52 mm is not automatically a replacement for GYE25-KRR-B.

How Is INA GYE25-KRR-B Searched Online?

The product is frequently searched using different punctuation, spacing, the older reference, current XL reference, dimensions or generic insert-bearing terminology.

Common search variants include:

• INA GYE25-KRR-B
• GYE25-KRR-B INA
• INA GYE 25 KRR B
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• INA GYE25
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• INA GYE25-XL-KRR-B
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• INA GYE25 XL KRR B
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• GYE25 bearing
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• GYE25 insert bearing
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• INA radial insert ball bearing 25mm
• INA insert bearing 25mm
• INA insert bearing 25x52
• INA insert bearing 25x52x34.1
• 25x52x34.1 bearing
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• INA bearing 25x52x34.1
• 25mm insert bearing
• 25mm bore insert bearing
• 25mm radial insert bearing
• 52mm OD insert bearing
• 25mm bore 52mm OD bearing
• 25mm ID 52mm OD bearing
• set screw bearing 25mm
• set screw insert bearing 25mm
• grub screw bearing 25mm
• grub screw insert bearing 25mm
• INA set screw bearing
• INA grub screw bearing
• GYE25 set screw bearing
• GYE25 grub screw bearing
• spherical OD insert bearing 25mm
• spherical outer ring bearing 25mm
• sealed insert bearing 25mm
• double sealed insert bearing 25mm

The exact product described on this page is:

INA GYE25-KRR-B / GYE25-XL-KRR-B, d = 25 mm, Dsp = 52 mm, B = 34.1 mm.

INA GYE 25 KRRB – Is This the Same Bearing?

Yes, the phrase:

INA GYE 25 KRRB

is a common search format for:

INA GYE25-KRR-B.

Users frequently remove hyphens or insert spaces when entering industrial bearing references into Google, marketplace searches or supplier databases.

For technical identification, use the complete designation:

GYE25-KRR-B

or the current designation:

GYE25-XL-KRR-B.

GYE25KRRB – Why Is the Reference Written Differently?

The same basic reference may appear in searches without separators:

GYE25KRRB

or with spaces:

GYE 25 KRRB.

These variants are useful for search identification but should not replace the manufacturer's catalogue designation on technical documentation.

The product described here is identified as:

INA GYE25-KRR-B / GYE25-XL-KRR-B.

25x52x34.1 Insert Bearing – Is the Size Enough?

No.

A search for:

25x52x34.1 insert bearing

is useful when the dimensions are known but the reference is unreadable.

However, dimensions alone do not identify:

shaft locking method

outer-ring geometry

seal configuration

or:

housing compatibility.

For this product, the complete identification includes:

INA + GYE25-KRR-B + 25 mm bore + 52 mm spherical OD + grub-screw locking + KRR seals.

GYE25-KRR-B vs Standard 6205 Bearing

Both bearing families use a nominal 25 mm bore, but they are fundamentally different products.

GYE25-KRR-B is a radial insert ball bearing with:

spherical outer ring

extended inner ring

grub-screw shaft locking

and:

integrated sealing.

A conventional 6205 deep groove ball bearing should therefore not be considered a dimensional or functional replacement simply because it also has a 25 mm bore.

Technical Specification

FAQ

What are the dimensions of INA GYE25-KRR-B?

The principal dimensions are d = 25 mm, Dsp = 52 mm and B = 34.1 mm. The outer ring width C is 15 mm.

Is GYE25-KRR-B the same as GYE25-XL-KRR-B?

GYE25-KRR-B is the reference commonly encountered in older documentation and the market, while current Schaeffler documentation lists GYE25-XL-KRR-B.

How is INA GYE25-KRR-B secured to the shaft?

The bearing is located on the shaft using grub screws in the inner ring.

Does GYE25-KRR-B use an eccentric locking collar?

No. GYE25-KRR-B uses grub-screw shaft locking. This is an important difference from insert-bearing designs that use an eccentric locking collar.

What does KRR mean?

For this INA series, KRR identifies R-type lip seals on both sides.

Does INA GYE25-KRR-B have a spherical outer ring?

Yes. It has a spherical outer ring surface designed for installation in a compatible housing.

What is the dynamic load rating?

The basic dynamic radial load rating is Cr = 14.9 kN.

Can any 25x52 insert bearing replace GYE25-KRR-B?

No. Check the width, spherical outer-ring geometry, shaft-locking method, sealing arrangement, load ratings and housing compatibility before confirming interchangeability.

AI Overview

INA GYE25-KRR-B, currently designated GYE25-XL-KRR-B, is a radial insert ball bearing with a 25 mm bore, 52 mm spherical outside diameter and 34.1 mm width. It features R seals on both sides and grub-screw shaft locking. Common searches include INA GYE 25 KRRB, GYE25KRRB, GYE25 bearing and 25x52x34.1 insert bearing.