01Product line

Precision Plastic Bearing Components

Custom plastic bearing cages and related components for one-way clutch, needle roller, ball, thrust, linear ball, angular contact and other bearing structures. Products are developed according to customer drawings, approved samples and project requirements.

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Boerjing precision plastic bearing cages

02Component range

Bearing-component categories.

Products are developed to drawings, approved samples or project requirements. Materials, dimensions, tolerances, interfaces, inspection and packaging are confirmed during technical review.

  1. 01One-Way Clutch CagesView category
  2. 02Needle Roller Bearing CagesView category
  3. 03Ball Bearing CagesView category
  4. 04Thrust Bearing CagesView category
  5. 05Linear Ball Bearing RetainersView category
  6. 06Angular Contact Bearing CagesView category
  7. 07Split Bearing CagesView category
  8. 08PEEK Bearing CagesView category
  9. 09Polymer Bearing BushingsView category
  10. 10Bearing SpacersView category
  11. 11Clutch Release Bearing Guide SleevesView category
  12. 12Polyurethane SealsView category
01

One-Way Clutch Cages

One-Way Clutch Cages position and guide rollers or locking elements within one-way clutch assemblies. They are used in overrunning, backstopping, indexing and similar mechanisms that transmit motion in one direction while allowing or restricting movement in the opposite direction. Selection is based on the locking-element type, shaft and housing dimensions, operating direction, cage design, material and working conditions.

02

Needle Roller Bearing Cages

Needle Roller Bearing Cages separate, position and guide needle rollers while maintaining the required spacing during operation. They are suitable for needle roller bearing arrangements where radial installation space is limited. Selection requires confirmation of the shaft diameter, needle-roller size, cage dimensions, raceway design, mounting method and operating conditions.

03

Ball Bearing Cages

Ball Bearing Cages evenly separate and guide balls within the bearing raceways. They can be developed for different ball-bearing designs and are not limited to one specific bearing type. Selection is based on the bearing design, ball diameter and quantity, pitch-circle dimensions, cage geometry, material, operating speed and assembly method.

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04

Thrust Bearing Cages

Thrust Bearing Cages position, separate and guide rolling elements in bearing arrangements designed primarily for axial loads. Cage designs can be developed for balls, needle rollers or other rolling-element configurations. Selection requires confirmation of the rolling-element type, inside and outside diameters, installation height, load direction, pocket geometry and operating conditions.

05

Linear Ball Bearing Retainers

Linear Ball Bearing Retainers position and guide balls along defined paths within linear bearing assemblies. They are used in linear-guidance, reciprocating-motion and related mechanisms. Selection is based on the shaft diameter, ball size, circulation-path design, retainer length, travel distance, installation space and movement requirements.

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06

Angular Contact Bearing Cages

Angular Contact Bearing Cages position, separate and guide rolling elements according to the designed contact angle. They are used in bearing arrangements that accommodate combined radial and axial loads and can be developed for different rolling-element configurations. Selection depends on the rolling-element type, contact angle, cage geometry, mounting direction, material and operating conditions.

07

Split Bearing Cages

Split Bearing Cages consist of two halves or multiple cage segments that are assembled according to the bearing design. They are suitable where a one-piece circular cage is difficult to install or where the bearing arrangement requires split assembly. Selection requires confirmation of the bearing type, rolling-element size, number of segments, joining method and available installation space.

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08

PEEK Bearing Cages

PEEK Bearing Cages are intended for bearing applications where PEEK is specified because of project requirements relating to temperature, dimensional stability, wear or chemical exposure. They can be customized for different bearing and rolling-element designs. Selection should consider temperature, speed, load, lubricant compatibility and the suitability of the selected PEEK grade.

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09

Polymer Bearing Bushings

Polymer Bearing Bushings are installed between shafts, housings or related components to provide a sliding interface, guide movement, reduce direct metal contact or accommodate assembly space. They can be used in rotary, oscillating or linear-motion arrangements. Selection is based on dimensions, wall thickness, fit, load, movement type, material and lubrication conditions.

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10

Bearing Spacers

Bearing Spacers maintain the required distance and position between rolling elements or related bearing components. They help reduce direct contact between adjacent parts and support the intended movement of the assembly. Selection requires confirmation of the contacting components, spacing dimensions, installation position, load direction, material and operating conditions.

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11

Clutch Release Bearing Guide Sleeves

Clutch Release Bearing Guide Sleeves provide positioning and axial guidance for clutch release bearing assemblies. They allow the related components to move along a defined path during clutch operation. Selection is based on the guide diameter, sliding travel, fit clearance, mounting interface, material, lubrication method and operating environment.

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12

Polyurethane Seals

Polyurethane Seals provide sealing and protection in bearing and mechanical assemblies. Depending on the design, they can help retain lubricant and reduce the entry of dust, moisture or other contaminants. Selection requires confirmation of the seal profile, groove dimensions, operating medium, pressure, temperature and type of motion.

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03Reference series

Current first-stage product series.

Only confirmed information is published. Parameters still marked for confirmation remain off the public page.

HF Series Plastic Cages for One-Way Clutches

HF SERIES

HF Series Plastic Cages for One-Way Clutches

HF Series plastic cages are designed for one-way bearing and clutch structures. Within the complete assembly, they position, separate and guide the rolling elements and associated spring elements. They are suitable for applications requiring one-way transmission, backstopping or overrunning functions and can be customized according to customer drawings, approved samples and specific assembly requirements.

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HFL Series Plastic Cage Assemblies for One-Way Clutches with Integrated Bearing Supports

HFL SERIES

HFL Series Plastic Cage Assemblies for One-Way Clutches with Integrated Bearing Supports

HFL Series plastic cage assemblies are designed for one-way bearing and clutch assemblies with integrated bearing supports. The three-piece cage assembly consists of a large-end cage, center cage and small-end cage. These components position, separate and guide the locking rolling elements, associated spring elements and supporting rolling elements on both sides. Products can be customized according to customer drawings, approved samples and specific assembly requirements.

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K Series Plastic Cages for Needle Roller Bearings

K SERIES

K Series Plastic Cages for Needle Roller Bearings

K Series plastic cages are designed for radial needle roller bearing assemblies. Their pockets evenly separate, position and guide the needle rollers. This series is suitable for structures with limited radial installation space where the shaft and housing bore are used as raceways. Products can be customized according to customer drawings, approved samples and specific needle roller requirements.

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HK Series Plastic Cages for Drawn Cup Needle Roller Bearings

HK SERIES

HK Series Plastic Cages for Drawn Cup Needle Roller Bearings

HK Series plastic cages are designed for drawn cup needle roller bearings. Their pockets evenly separate, position and guide the needle rollers. This series is suitable for applications with limited radial installation space where a thin-walled outer ring is required to form a complete bearing structure. Products can be customized according to customer drawings, approved samples and specific needle roller requirements.

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AXK Series Plastic Cages for Thrust Needle Roller Bearings

AXK SERIES

AXK Series Plastic Cages for Thrust Needle Roller Bearings

AXK Series plastic cages are designed for thrust needle roller bearing assemblies. The pockets distributed around the circumference separate, position and guide the needle rollers. This series is suitable for structures with limited axial installation space that are required to carry unidirectional axial loads. Products can be customized according to customer drawings, approved samples and specific needle roller requirements.

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K811 Series Plastic Cages for Thrust Cylindrical Roller Bearings

K811 SERIES

K811 Series Plastic Cages for Thrust Cylindrical Roller Bearings

K811 Series plastic cages are designed for thrust cylindrical roller bearing assemblies. The pockets distributed around the circumference separate, position and guide the cylindrical rollers. Manufactured from 25% glass-fiber-reinforced PA66, these cages are suitable for thrust bearing structures required to carry unidirectional axial loads. Products can be customized according to customer drawings, approved samples and specific roller requirements.

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K812 Series Plastic Cages for Thrust Cylindrical Roller Bearings

K812 SERIES

K812 Series Plastic Cages for Thrust Cylindrical Roller Bearings

K812 Series plastic cages are designed for thrust cylindrical roller bearing assemblies. The pockets distributed around the circumference separate, position and guide the cylindrical rollers. Manufactured from 25% glass-fiber-reinforced PA66, these cages are suitable for thrust bearing structures with larger radial installation spaces and unidirectional axial-load requirements. Products can be customized according to customer drawings, approved samples and specific roller requirements.

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AXS Series Plastic Cages for Axial Angular Contact Roller Bearings

AXS SERIES

AXS Series Plastic Cages for Axial Angular Contact Roller Bearings

AXS Series plastic cages are designed for axial angular contact roller bearings. Pockets arranged according to the specified contact angle separate, position and guide the cylindrical rollers. This series is suitable for compact bearing structures with limited axial installation space that are required to carry axial loads, partial radial loads or tilting moments. Products can be customized according to customer drawings, approved samples and specific roller requirements.

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04Engineering matrix

Compare bearing-cage series.

Use this overview to narrow the relevant structure, function and rolling-element family. Each product passport then provides the full introduction, confirmed project information and series-specific model table.

Scroll horizontally to compare every field.

Engineering comparison of bearing-component series
Series Assembly structure Primary function / load Rolling element Material status Published models Details
HF Series Plastic Cages for One-Way Clutches 01HFHF Series Plastic Cages for One-Way Clutches One-way clutch Locking / overrunning Project-specific Project-specific 10models Product passport
HFL Series Plastic Cage Assemblies for One-Way Clutches with Integrated Bearing Supports 02HFLHFL Series Plastic Cage Assemblies for One-Way Clutches with Integrated Bearing Supports One-way clutch + support Locking + radial support Project-specific Project-specific 4models Product passport
K Series Plastic Cages for Needle Roller Bearings 03KK Series Plastic Cages for Needle Roller Bearings Radial needle roller Radial guidance Needle roller Project-specific 10models Product passport
HK Series Plastic Cages for Drawn Cup Needle Roller Bearings 04HKHK Series Plastic Cages for Drawn Cup Needle Roller Bearings Drawn cup needle roller Radial guidance Needle roller Project-specific 7models Product passport
AXK Series Plastic Cages for Thrust Needle Roller Bearings 05AXKAXK Series Plastic Cages for Thrust Needle Roller Bearings Thrust needle roller Unidirectional axial load Needle roller Project-specific 4models Product passport
K811 Series Plastic Cages for Thrust Cylindrical Roller Bearings 06K811K811 Series Plastic Cages for Thrust Cylindrical Roller Bearings Thrust cylindrical roller Unidirectional axial load Cylindrical roller PA66-GF25 8models Product passport
K812 Series Plastic Cages for Thrust Cylindrical Roller Bearings 07K812K812 Series Plastic Cages for Thrust Cylindrical Roller Bearings Thrust cylindrical roller Unidirectional axial load Cylindrical roller PA66-GF25 8models Product passport
AXS Series Plastic Cages for Axial Angular Contact Roller Bearings 08AXSAXS Series Plastic Cages for Axial Angular Contact Roller Bearings Axial angular contact Axial / combined load Cylindrical roller Project-specific 2models Product passport