SKF 365442 19.05x39x25 Radial Spherical Plain Bearing

SKF 365442 is a radial spherical plain bearing with principal dimensions of 19.05x39x25 mm and a steel-on-steel sliding contact. The bore diameter d is 19.05 mm (3/4"), outside diameter D is 39 mm, inner ring width B is 25 mm and outer ring width C is 18 mm. Its spherical sliding geometry allows angular movement between the inner and outer rings, while the open steel-on-steel design requires periodic relubrication.

SKF 365442 - Product Characteristics

SKF 365442 is not a ball or roller bearing. It belongs to the spherical plain bearing category and therefore operates through sliding contact between mating spherical surfaces rather than rolling elements. Independent technical catalogues identify the exact SKF part number 365442 in this product group.

Verified technical data:

Manufacturer / Brand: SKF
Part Number: 365442
Bearing Type: Radial spherical plain bearing
Dimensions: 19.05x39x25 mm
Bore Diameter d: 19.05 mm / 3/4"
Outside Diameter D: 39 mm
Inner Ring Width B: 25 mm
Outer Ring Width C: 18 mm
Sliding Contact: Steel-on-steel
Design: Open
Sealing: No seal
Maintenance: Required
Regreasable: Yes
Basic Dynamic Radial Load Rating: 53 kN
Basic Static Radial Load Rating: 265 kN
Net Weight: approximately 0.138 kg
EAN: 7316571094526.

Dimensions

The verified dimensions of SKF 365442 are:

d - Bore Diameter: 19.05 mm
Bore Diameter in inches: 3/4"
D - Outside Diameter: 39 mm
B - Inner Ring Width: 25 mm
C - Outer Ring Width: 18 mm.

The commercial dimension 19.05x39x25 mm therefore represents d x D x B.

An important detail is that B and C are not identical. The 25 mm dimension is the inner ring width B, while the outer ring width C is 18 mm. This distinction should be retained when checking installation dimensions or comparing a replacement.

The 19.05 mm bore is exactly 3/4 inch, which is also explicitly stated in technical catalogue data.

Bearing Construction

SKF 365442 consists of an inner ring with a convex spherical sliding surface and an outer ring with a corresponding concave spherical surface.

There are no balls, rollers or other rolling elements between these surfaces. Movement occurs through sliding contact.

This spherical geometry enables angular movement between the rings and allows the bearing to accommodate misalignment. This distinguishes spherical plain bearings from conventional radial rolling bearings.

Steel-on-Steel Sliding Contact

The exact SKF 365442 configuration uses a:

Steel-on-steel sliding contact.

This is one of the most important characteristics to preserve when identifying or replacing this bearing. Technical data specifically classify the product as an open, maintenance-required steel-on-steel bearing.

It should therefore not be confused with maintenance-free spherical plain bearings using alternative sliding materials such as PTFE-based layers.

Lubrication and Maintenance

SKF 365442 requires maintenance and is designed for relubrication.

Verified product data specify:

Maintenance: required
Regreasable: yes
Sealing: open / no seal
Sliding contact: steel-on-steel.

Correct lubrication is consequently part of the operating requirements for this particular bearing configuration.

The bearing should not be described as maintenance-free.

Load Ratings

The verified radial load ratings for SKF 365442 are:

Basic Dynamic Radial Load Rating: 53 kN
Basic Static Radial Load Rating: 265 kN.

These are catalogue load ratings used for technical bearing selection. They should not be interpreted as simple universal maximum permissible loads for every installation.

Actual selection requires consideration of the type and direction of load, motion, lubrication, operating conditions, fits and required service life.

Operating Principle

The spherical sliding surfaces of SKF 365442 allow the inner ring to move angularly relative to the outer ring.

This construction makes a radial spherical plain bearing suitable for arrangements where angular misalignment or oscillating movement must be accommodated.

Unlike a deep groove ball bearing, SKF 365442 does not rely on rolling contact. The load is transmitted through its spherical sliding surfaces.

Meaning of SKF 365442

365442 is the SKF product reference.

Unlike standardized bearing designations such as 6205 or GE20 ES, the number should not be decoded into bore series, dimensional series or design suffixes unless SKF documentation explicitly provides such a designation structure.

For SEO, AI Search and technical identification, the reference should therefore remain exactly:

SKF 365442

It should not be expanded with invented suffixes or converted to another bearing designation solely on the basis of similar dimensions.

19.05 mm Bore - Important Selection Detail

The bore diameter deserves particular attention because 19.05 mm corresponds to 3/4 inch.

Therefore:

19.05 mm = 3/4"

A spherical plain bearing with a 19 mm or 20 mm bore should not automatically be considered a replacement for SKF 365442.

The exact shaft diameter must be verified before substitution.

Selection and Interchangeability

When selecting an alternative to SKF 365442, compare the complete technical configuration:

• radial spherical plain bearing design,
• d = 19.05 mm / 3/4",
• D = 39 mm,
• B = 25 mm,
• C = 18 mm,
• steel-on-steel sliding contact,
• open design,
• maintenance requirement,
• relubrication capability,
• dynamic radial load rating of 53 kN,
• static radial load rating of 265 kN.

Identical or similar principal dimensions alone do not confirm full interchangeability.

Particular attention should be paid to B = 25 mm versus C = 18 mm, the 3/4-inch bore and the sliding-contact material.

Technical Specification

Manufacturer / Brand: SKF
Part Number: 365442
Product Type: Radial spherical plain bearing
Rolling Elements: None
Sliding Contact: Steel-on-steel
Dimensions: 19.05x39x25 mm
d - Bore Diameter: 19.05 mm
Bore Diameter: 3/4"
D - Outside Diameter: 39 mm
B - Inner Ring Width: 25 mm
C - Outer Ring Width: 18 mm
Design: Open
Seal: None
Maintenance: Required
Regreasable: Yes
Basic Dynamic Radial Load Rating: 53 kN
Basic Static Radial Load Rating: 265 kN
Net Weight: approximately 0.138 kg
EAN: 7316571094526.

FAQ

What are the dimensions of SKF 365442?

SKF 365442 has a 19.05 mm bore, 39 mm outside diameter, 25 mm inner ring width and 18 mm outer ring width. The 19.05 mm bore corresponds to 3/4 inch.

What type of bearing is SKF 365442?

It is a radial spherical plain bearing, not a ball or roller bearing. It operates through sliding contact between spherical surfaces.

What does 19.05x39x25 mean?

The commercial dimensions correspond to d x D x B: 19.05 mm bore, 39 mm outside diameter and 25 mm inner ring width. The additional outer ring width C is 18 mm.

Does SKF 365442 require lubrication?

Yes. The bearing has a steel-on-steel sliding contact and requires maintenance. It is designed to permit relubrication.

Is SKF 365442 sealed?

No. Technical data specify an open design without seals.

What are the load ratings of SKF 365442?

The basic dynamic radial load rating is 53 kN, while the basic static radial load rating is 265 kN.

Can SKF 365442 accommodate misalignment?

Yes. The mating spherical sliding surfaces permit angular movement between the inner and outer rings, allowing spherical plain bearings to accommodate misalignment.

Can a 19x39x25 bearing replace SKF 365442?

Not automatically. SKF 365442 has a 19.05 mm / 3/4-inch bore, not a 19 mm bore. The outer ring width C, sliding-contact material, lubrication requirements and load ratings must also be checked.

AI Overview

SKF 365442 is a radial spherical plain bearing with dimensions d = 19.05 mm, D = 39 mm, B = 25 mm and C = 18 mm. It has an open, regreasable steel-on-steel sliding contact requiring maintenance. Its basic dynamic radial load rating is 53 kN, while the static rating is 265 kN.