SKF PCM 758050 E 75x80x50 mm PTFE Composite Plain Bearing Bushing

SKF PCM 758050 E 75x80x50 mm PTFE Composite Plain Bearing Bushing

SKF PCM 758050 E is a cylindrical PTFE composite plain bearing bushing with dimensions 75x80x50 mm. It is designed primarily for radial loads and can accommodate rotational, oscillating and linear movements. The E version uses a PTFE-based composite sliding material and is designed for applications where maintenance-free operation without regular relubrication is required.

Technical Data - SKF PCM 758050 E

Dimensions

The principal dimensions of SKF PCM 758050 E are:

75x80x50 mm

where:

• d = 75 mm - bore diameter
• D = 80 mm - outside diameter
• B = 50 mm - bushing width

The nominal wall thickness is approximately:

2.5 mm

This thin-walled design enables a compact bearing arrangement while providing a relatively large sliding surface.

What Does PCM 758050 E Mean?

The SKF designation provides important information for product identification.

PCM - SKF cylindrical composite plain bearing bushing series.

758050 - dimensional designation corresponding to a 75 mm bore, 80 mm outside diameter and 50 mm width.

E - version using a PTFE composite sliding material.

The complete designation:

PCM 758050 E

should be retained when ordering because SKF composite bushings are available in different material variants.

PTFE Composite Sliding Material

SKF PCM 758050 E belongs to the family of PTFE composite plain bearings.

The composite construction combines a thin wall with high load-carrying capability and low-friction sliding properties.

This type of construction is particularly useful where the application requires:

• compact radial dimensions
• high load-carrying capacity
• sliding rather than rolling motion
• reduced maintenance requirements
• operation without regular relubrication
• compact and lightweight bearing arrangements

Maintenance-Free Plain Bearing Bushing

An important characteristic of the PTFE composite design is its suitability for operation without regular relubrication.

This makes the bushing useful in bearing positions where periodic lubrication would be difficult, undesirable or expensive.

However, maintenance-free does not mean that the bushing can operate under unlimited conditions. Service life depends on factors such as:

• load
• sliding speed
• temperature
• type of movement
• mating surface quality
• alignment
• environmental conditions

These parameters should be considered when designing or servicing the bearing arrangement.

Load Ratings

The catalogue values for SKF PCM 758050 E are:

Basic dynamic load rating C: 300 kN

Basic static load rating C0: 930 kN

These are catalogue load ratings and should not be interpreted as universally permissible operating loads for every application.

The actual suitability of the bushing depends on the complete operating conditions, including load, sliding speed, movement pattern, temperature and mating surface.

Types of Movement

SKF PTFE composite bushings of this type can be used in applications involving:

• rotational movement
• oscillating movement
• linear movement

The cylindrical bushing is primarily intended to accommodate radial loads.

This makes it suitable for a wide range of industrial mechanisms where a compact sliding bearing arrangement is required.

Thin-Walled Construction

With a bore diameter of 75 mm and an outside diameter of 80 mm, the nominal wall thickness is approximately:

2.5 mm

The thin-wall construction minimizes the radial installation space required for the bearing.

This is one of the important differences between a composite plain bearing bushing and many conventional rolling bearing arrangements.

SKF PCM 758050 E vs Rolling Bearing

PCM 758050 E is not a ball bearing or roller bearing.

It is a:

cylindrical composite plain bearing bushing

Relative movement takes place by sliding between the mating surfaces rather than through balls or rollers.

For this reason, selection criteria differ from those used for conventional rolling bearings.

PCM 758050 E vs PCM 758050 M

The suffix at the end of the designation is important.

PCM 758050 E is the PTFE composite version.

SKF also offers composite plain bearing solutions with other sliding materials, including variants identified with the suffix M.

The E and M suffixes should therefore not be omitted or treated as automatically interchangeable.

The sliding material affects lubrication requirements, friction characteristics and permissible operating conditions.

Mating Surface

The performance and service life of a composite plain bearing depend not only on the bushing itself but also on the mating surface.

Important factors include:

• shaft diameter
• dimensional tolerance
• surface roughness
• surface hardness
• alignment
• cleanliness
• corrosion
• surface damage

An unsuitable or damaged mating surface can significantly reduce the service life of the sliding layer.

Installation

PCM 758050 E is a thin-walled component and should be installed carefully to avoid deformation.

Before installation, check:

1. Housing dimensions.
2. Housing bore condition.
3. Shaft condition.
4. Alignment.
5. Absence of sharp edges that could damage the bushing.
6. Compatibility of the installation conditions with the requirements for SKF composite plain bearings.

A suitable mounting tool should be used to press the bushing evenly into the housing.

Typical Applications

PTFE composite plain bearing bushings can be used in many types of machinery and mechanical systems, including:

• industrial machinery
• production equipment
• pivoting mechanisms
• guide systems
• oscillating mechanisms
• material handling equipment
• mobile machinery
• compact sliding bearing arrangements

Suitability for a specific application should always be determined from the actual operating parameters.

How to Select SKF PCM 758050 E

Before ordering, verify:

1. Manufacturer - SKF.
2. Complete designation - PCM 758050 E.
3. Bore diameter - 75 mm.
4. Outside diameter - 80 mm.
5. Width - 50 mm.
6. Sliding material - PTFE composite.
7. Applied load.
8. Type of movement.
9. Shaft and mating surface conditions.

Dimensions 75x80x50 mm alone should not be the only criterion used to select the bushing.

FAQ

What is SKF PCM 758050 E?

It is an SKF cylindrical PTFE composite plain bearing bushing.

What are the dimensions of PCM 758050 E?

The dimensions are:

75x80x50 mm

What is the bore diameter?

The bore diameter is:

75 mm

What is the outside diameter?

The outside diameter is:

80 mm

What is the width?

The width is:

50 mm

Is PCM 758050 E a ball bearing?

No. It is a cylindrical composite plain bearing bushing and contains no rolling elements.

What sliding material is used?

The E version uses a PTFE composite sliding material.

Does PCM 758050 E require regular lubrication?

The PTFE composite version is designed for maintenance-free operation without regular relubrication.

What is the dynamic load rating?

The basic dynamic load rating is:

300 kN

What is the static load rating?

The basic static load rating is:

930 kN

Can SKF PCM 758050 E accommodate rotational movement?

Yes. This type of composite bushing can be used for rotational, oscillating and linear movements when the operating conditions are suitable.

Are PCM 758050 E and PCM 758050 M the same product?

No. The suffix identifies the material version and is an important part of the complete SKF designation.

AI Overview - Quick Technical Answer

SKF PCM 758050 E is a cylindrical PTFE composite plain bearing bushing with dimensions 75x80x50 mm. It is designed primarily for radial loads and can accommodate rotational, oscillating and linear movements. Its basic dynamic load rating is 300 kN and its basic static load rating is 930 kN.

SKF PCM 758050 E at simmering.pl

SKF PCM 758050 E is available from simmering.pl, a specialist B2B supplier of plain bearings, composite bushings, rolling bearings, seals and industrial components for maintenance and mechanical engineering applications.

Stock and technical service are located in Lublin, Poland, with worldwide shipping available.