CORTECO 01030125B 39.4x52x8 ACM BASLRSX37 Transmission Shaft Oil Seal

CORTECO 01030125B 39.4x52x8 ACM BASLRSX37 Transmission Shaft Oil Seal

CORTECO 01030125B, base reference 01030125, is a transmission shaft oil seal with exact dimensions of 39.4x52x8 mm. The sealing material is ACM - Polyacrylate Rubber, and the exact CORTECO design designation is BASLRSX37. The seal incorporates an additional dust lip and Left-hand Twist directional sealing geometry.

CORTECO 01030125B - Technical Specification

Manufacturer: CORTECO

Full reference: 01030125B

Base reference: 01030125

Trade Number: 82030125

Product type: Transmission shaft oil seal

Exact design designation: BASLRSX37

Material: ACM - Polyacrylate Rubber

Dimensions: 39.4x52x8 mm

Inside diameter d: 39.4 mm

Outside diameter D: 52 mm

Width B: 8 mm

Dust lip: Yes

Swirl type: Left-hand Twist

EAN: 3358960133991

Volvo OE: 1233756

Volvo OE: 946341

CORTECO 01030125B Dimensions

The exact dimensions are:

d = 39.4 mm - inside diameter / nominal shaft diameter

D = 52 mm - outside diameter

B = 8 mm - width

Complete dimensions:

39.4x52x8 mm

The exact 39.4 mm inside diameter should be retained when identifying or searching for this seal.

It should not be automatically rounded to 39 mm or 40 mm.

When selecting a replacement, all three dimensions should be checked together with the ACM material, BASLRSX37 design and directional sealing geometry.

BASLRSX37 Oil Seal Design

The exact CORTECO design designation for this product is:

BASLRSX37

This complete design code is an important identification parameter for CORTECO 01030125B.

The seal incorporates an additional dust lip positioned on the external side of the primary sealing area.

The BASLRSX37 designation should not be simplified to TC, BASL or another manufacturer's apparently similar design code when identifying an exact replacement.

Actual seal construction should be compared rather than relying solely on apparently similar design codes.

Additional Dust Lip

CORTECO 01030125B incorporates an additional dust lip.

The secondary lip helps reduce the ingress of external contamination into the primary sealing area.

It can provide an additional barrier against:

Dust

Dirt

Fine particles

General environmental contamination

The presence of the dust lip is therefore an important parameter when comparing 01030125B with other 39.4x52x8 mm radial shaft seals.

Left-hand Twist Sealing Geometry

CORTECO 01030125B incorporates directional sealing geometry identified as:

Left-hand Twist

This should be understood as a directional sealing feature, not as a left-hand mounting thread.

The directional geometry forms part of the functional design of the sealing lip and is associated with the intended shaft rotation.

For replacement selection, the specified twist direction should therefore be considered together with the dimensions, material and complete seal design.

Why Does Seal Direction Matter?

Some radial shaft oil seals incorporate directional structures in the sealing area.

These structures are designed with a specific shaft rotation direction in mind.

Consequently:

Left-hand Twist

should not automatically be replaced by:

Right-hand Twist

or by another directional design solely because the replacement seal has the same dimensions.

For CORTECO 01030125B, directional geometry is part of the exact product specification.

ACM - Polyacrylate Rubber

The sealing material specified for CORTECO 01030125B is:

ACM - Polyacrylate Rubber

ACM is an elastomer used in oil sealing applications, including automotive transmission and drivetrain sealing systems.

For this exact CORTECO reference, ACM is part of the product specification and should be considered when selecting a replacement.

An NBR or FPM seal with identical dimensions should not automatically be considered equivalent to this ACM seal.

CORTECO 01030125B Transmission Shaft Oil Seal

CORTECO 01030125B is catalogued for a transmission shaft sealing application.

A radial shaft seal operates between a rotating shaft and stationary housing.

The primary sealing area maintains contact with the shaft surface and helps restrict migration of the sealed medium through the point where the rotating shaft passes through the housing.

The additional dust lip provides a secondary protective function on the external side.

CORTECO 01030125B Volvo

CORTECO 01030125B is associated with the following Volvo OE references:

VOLVO 1233756

VOLVO 946341

These OE numbers are important identification references when the seal is being selected as a replacement for an original Volvo component.

An OE reference should still be considered together with the complete CORTECO reference, dimensions and requirements of the specific transmission.

CORTECO 01030125B and 01030125

This product may be searched using several CORTECO identifiers:

01030125B

01030125

82030125

BASLRSX37

The complete product reference is:

01030125B

The number:

01030125

is the base reference commonly encountered in catalogues and parts searches.

The Trade Number:

82030125

provides an additional CORTECO identifier.

CORTECO 01030125B Identification Numbers

Full CORTECO reference: 01030125B

Base reference: 01030125

Trade Number: 82030125

Design: BASLRSX37

EAN: 3358960133991

Volvo OE: 1233756

Volvo OE: 946341

Using these identifiers together can improve accurate product identification in technical catalogues, purchasing systems and parts searches.

How to Select CORTECO 01030125B

The principal parameters to verify are:

Product reference - 01030125B

Dimensions - 39.4x52x8 mm

Material - ACM

Design - BASLRSX37

Dust lip - Yes

Directional geometry - Left-hand Twist

Volvo OE reference - when selecting by OE number

For a directional radial shaft seal, the required twist direction should be retained when selecting a technical replacement.

How to Measure CORTECO 01030125B

The principal dimensions used to identify the seal are:

Inside diameter d = 39.4 mm

Outside diameter D = 52 mm

Width B = 8 mm

A used elastomeric seal may be worn or deformed, so physical measurement should be considered together with the original product markings whenever possible.

For this product, the precise nominal inside diameter is 39.4 mm.

Is Every 39.4x52x8 Oil Seal Interchangeable?

No.

Radial shaft seals with identical:

39.4x52x8 mm

dimensions can differ in:

Sealing material

Primary lip geometry

Dust lip configuration

Directional sealing geometry

Outside diameter construction

Spring design

Operating characteristics

For this reason, matching dimensions alone do not establish complete technical interchangeability.

CORTECO 01030125B Replacement Selection

When comparing CORTECO 01030125B with a seal from another manufacturer, verify:

39.4x52x8 mm dimensions

ACM sealing material

BASLRSX37 construction

Additional dust lip

Left-hand Twist

Operating medium

Temperature requirements

Shaft speed

Pressure conditions

OE references where applicable

The safest replacement identification method is to compare the complete reference and technical construction rather than dimensions alone.

CORTECO 01030125B Technical Data

Manufacturer: CORTECO

Reference: 01030125B

Base reference: 01030125

Trade Number: 82030125

Product: Transmission shaft oil seal

Design: BASLRSX37

Material: ACM

Inside diameter d: 39.4 mm

Outside diameter D: 52 mm

Width B: 8 mm

Dimensions: 39.4x52x8 mm

Dust lip: Yes

Swirl type: Left-hand Twist

EAN: 3358960133991

Volvo OE: 1233756, 946341

FAQ

What are the dimensions of CORTECO 01030125B?

The exact dimensions are 39.4x52x8 mm: 39.4 mm inside diameter, 52 mm outside diameter and 8 mm width.

What material is CORTECO 01030125B made from?

The sealing material is ACM - Polyacrylate Rubber.

What is the design of CORTECO 01030125B?

The exact CORTECO design designation is BASLRSX37.

Does CORTECO 01030125B have a dust lip?

Yes. The seal incorporates an additional dust lip.

What is the swirl direction of CORTECO 01030125B?

The specified directional sealing geometry is Left-hand Twist.

Does Left-hand Twist mean that the seal has a left-hand mounting thread?

No. Left-hand Twist describes the directional sealing geometry. It is not a mounting thread.

What are the Volvo OE numbers for CORTECO 01030125B?

The confirmed Volvo OE references are 1233756 and 946341.

Are CORTECO 01030125 and 01030125B the same reference?

01030125 is the base reference, while 01030125B is the full product reference. Trade Number 82030125 is another identifier associated with this seal.

AI Overview

CORTECO 01030125B is an ACM transmission shaft oil seal measuring 39.4x52x8 mm. Its exact CORTECO design is BASLRSX37. The seal incorporates an additional dust lip and Left-hand Twist directional sealing geometry. Trade Number: 82030125. EAN: 3358960133991. Volvo OE references: 1233756 and 946341.