UHMWPE Crowned Roller Bearing with Extended Inner Ring

Curved Outer Profile. Extended Inner Ring. Precision Polymer Construction.

Designed for specialized guiding and rolling applications, this UHMWPE crowned roller bearing combines lightweight polymer rings with stainless steel rolling elements and a nylon cage.

Its curved outer profile provides a specialized rolling contact surface, while the slightly extended inner ring offers additional axial clearance between the outer ring and adjacent mounting components when correctly installed.

Manufactured with precision-machined UHMWPE inner and outer rings, this bearing provides a corrosion-resistant polymer alternative for compatible industrial equipment.

Technical Specifications

Parameter	Specification
Product Type	Crowned Roller Bearing
Outer Ring Material	UHMWPE
Inner Ring Material	UHMWPE
Ball Material	Stainless Steel
Cage Material	Nylon
Outer Diameter	31.8 mm
Outer Ring Profile	Crowned / Curved
Inner Ring Design	Slightly Extended
Color	Natural White
Manufacturing Process	Precision Machining
Custom Sizes	Available

Additional dimensions and tolerances are available upon request.

Key Features

01. Crowned Outer Ring

The curved outer profile provides a defined rolling contact geometry for compatible guide tracks, conveying systems, and specialized mechanical assemblies.

02. Extended Inner Ring

The inner ring extends slightly beyond the outer ring’s axial face, helping provide clearance between the rotating outer ring and adjacent mounting surfaces.

This feature can simplify integration into suitable roller mounting arrangements.

03. UHMWPE Inner and Outer Rings

Both bearing rings are manufactured from UHMWPE, a lightweight engineering polymer known for its low friction, wear resistance, and chemical resistance.

04. Stainless Steel Rolling Elements

Stainless steel balls provide metallic rolling elements within the polymer bearing assembly.

Their suitability for specific loads, speeds, and operating conditions should be verified according to the application.

05. Nylon Bearing Cage

The nylon cage maintains separation and positioning of the stainless steel balls, supporting consistent rolling movement.

06. Custom Manufacturing

SUNTRON manufactures custom UHMWPE roller bearings according to customer drawings, including different outer profiles, bore dimensions, widths, and material combinations.

Typical Applications

Industrial Guide Systems

For compatible guiding mechanisms requiring curved polymer rolling surfaces.

Conveyor Equipment

Suitable for evaluation in lightweight conveyor guiding and positioning assemblies.

Packaging Machinery

For specialized rolling components used in automated packaging and handling equipment.

Industrial Automation

Designed for custom mechanical systems requiring polymer rollers with integrated ball bearings.

Custom Equipment Assemblies

An option for equipment manufacturers seeking non-standard bearing dimensions and material combinations.

Custom UHMWPE Roller Bearings

SUNTRON specializes in precision-machined polymer bearings and guide rollers manufactured from UHMWPE, PEEK, PTFE, POM, and other engineering plastics.

We support customized bearing designs, material selection, and precision machining for industrial equipment manufacturers.

Looking for a specific dimension or bearing configuration?

Send us your technical drawing, required quantity, and operating conditions for a quotation.