Custom plastic bearing blocks
Bearing and pillow blocks machined to your part requirements.
CDS machines custom plastic bearing blocks from drawings or physical samples. Send your current drawing, specification or existing block for new-part production, replacement machining or a repeat order.
For the sleeve inside a retained housing, see Custom Plastic Bushings.
The block features CDS machines
The bore, mounting face and hole pattern identify the block on your drawing. Their specified dimensions and relationships form the machining requirements.
- Bore is the opening machined through the block.
- Mounting holes are located and dimensioned on the drawing.
- Center height is the distance from the mounting face to the bore axis.
Conceptual front view of a block. Dashed lines identify through-hole locations. The customer drawing specifies the actual geometry, dimensions, material and tolerances.
Bore and center height
The bore diameter, its location above the mounting face and any steps or recesses distinguish one block from another. The drawing provides the required sizes, tolerances and surface finish.
Mounting holes and threads
CDS can machine mounting features, including holes tapped directly into a plastic bearing block. Hole positions, thread callouts and depths need to match the current specification.
Complete block or insert housing
A block may have a direct bore or a seat for a separate sleeve or bearing. Identify the plastic component to be supplied and any additional parts included in the request.
Include the required solid or split construction on the drawing. CDS confirms the machining scope for the specified block and material.
Replacement bearing blocks
An existing block can provide a starting point when the original drawing is unavailable. A previous drawing or spare may preserve information missing from a worn part.
Machining from a drawing
Use the latest approved revision for the replacement. If your engineering team has changed the bore, mounting pattern or material, identify that revision so it can be quoted and manufactured correctly.
Working from an existing block
CDS offers reverse engineering for existing-part replacement. Photos, an old print, known dimensions and the physical block can help document the component to reproduce.
Mark worn or damaged areas. A worn bore or mounting face may no longer show the original dimensions; missing requirements need clarification before manufacture.
The specified plastic and grade
Use the material callout from the drawing or purchasing specification. A resin name, modified grade and proprietary product name can carry different requirements; send the complete callout and any permitted substitutions.
If the material of an existing block is unknown, identify it as unknown. Appearance alone does not establish its grade.
Documentation for your order
Include required material records, inspection documents or drawing-specific acceptance requirements with the inquiry. CDS confirms what can be supplied for the quoted work.
Request a quote for your bearing block
Send the manufacturing requirements you have. CDS will confirm the part scope, material availability and quotation details.
Part definition
Current drawing or specification, part number and revision; bore, center height, outside dimensions, mounting holes and threads; required tolerances and finish. For a replacement, identify whether a sample is available.
Material and documents
Exact material and grade, approved substitutions and required material or inspection documents. Flag missing or uncertain information.
Order details
Quantity by size or revision, repeat-order requirement, requested timing and any previous CDS order reference.
Contact CDS before arranging to send a bearing-block sample.
Start with a bearing-block sample