K811Precision plastic bearing component
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.
Discuss a K811 projectSupply scope: K811 Series plastic cage only; cylindrical rollers, shaft washers, housing washers and complete thrust cylindrical roller bearing assemblies are not included.
01Series introduction
Series scope and application.
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, helping maintain the correct roller arrangement between the axial raceways.
This series is primarily used to carry unidirectional axial loads. Compared with the slender needle rollers used in AXK Series assemblies, the K811 Series uses cylindrical rollers with larger diameters and cross-sections. Actual load-carrying capacity is determined by the complete bearing structure, roller specifications, raceways and operating conditions.
The cages are manufactured from 25% glass-fiber-reinforced polyamide 66 (PA66-GF25), providing the strength, rigidity and dimensional stability required for the application.
Boerjing can develop molds and manufacture precision injection-molded cages according to customer drawings, approved samples and the required roller quantity and specifications. Dimensions, tolerances, inspection methods and packaging requirements are confirmed during the technical review stage.
K811Key information
- Product type
- Plastic cage for thrust cylindrical roller bearings
- Applicable series
- K811 Series
- Rolling-element type
- Cylindrical rollers
- Main function
- Circumferentially separating, positioning and guiding cylindrical rollers
- Main load direction
- Unidirectional axial load
- Cage material
- 25% glass-fiber-reinforced polyamide 66 (PA66-GF25)
- Supply scope
- Plastic cage only
- Development basis
- Customer drawings or approved samples
02Models & specifications
K811 Series reference matrix.
Published values are limited to fields confirmed in the current product matrix. Project-specific dimensions, materials and assembly requirements are reviewed against the customer drawing or approved sample.
Scroll horizontally to inspect every published field.
| Compatible model | Cage inner diameter × outer diameter (mm) | Roller quantity | Roller specifications (mm) | Cage material |
|---|---|---|---|---|
| K81103 | 17.2×29.7 | 14 | Φ3.5×3.5 | PA66-GF25 |
| K81105 | 25.3×41.6 | 16 | Φ5×5 | PA66-GF25 |
| K81106 | 30.3×46.6 | 17 | Φ5×5 | PA66-GF25 |
| K81108 | 40.3×59.5 | 17 | Φ6×6 | PA66-GF25 |
| K81110 | 50.3×69.5 | 23 | Φ6×6 | PA66-GF25 |
| K81113 | 65.3×89.6 | 24 | Φ7.5×8 | PA66-GF25 |
| K81124 | 120.3×154.4 | 24 | Φ11×11 | PA66-GF25 |
| K81130 | 150.4×189.2 | 23 | Φ12×12 | PA66-GF25 |
03Supply scope & custom development
Developed from your drawing or approved sample.
Supply scope: K811 Series plastic cage only; cylindrical rollers, shaft washers, housing washers and complete thrust cylindrical roller bearing assemblies are not included.
Boerjing provides mold development and precision injection molding for the plastic cage. Dimensions, tolerances, material, inspection and packaging are confirmed during technical review.
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