The Precision Shims adjusts stack height, alignment, preload, clearance, or datum position in a defined robot joint assembly. This page is an unbranded request-for-quotation entry for an application-specific product type, not a fixed stocked model. Share the assembly, interface, environment, quantity, and documentation requirements so the proposed supply boundary can be reviewed before quotation.
Precision Shims Selection and RFQ Requirements
Precision metal shims and precision plastic shims can behave differently under compression, temperature, and long-term loading; substitution requires engineering approval. The review begins with the function of the item in the robot, then separates mechanical fit, electrical or material requirements, operating conditions, service access, and verification. Similar-looking parts are not treated as interchangeable. Drawings, connector schedules, photographs of mating interfaces, and revision-controlled bills of materials are more useful than a product-family name alone.
How to specify the Precision Shims
Provide the intended function and identify the two interfaces or assembly boundaries that the item connects. The initial review should address the following points:
- Finished Outline, Holes, Slots, And Datum Scheme: provide the drawing, schedule, or requirement that controls this decision.
- Thickness Set And Permitted Tolerance: provide the drawing, schedule, or requirement that controls this decision.
- Material, Hardness, Finish, And Edge Condition: provide the drawing, schedule, or requirement that controls this decision.
- Flatness, Burr Control, Cleanliness, And Marking: provide the drawing, schedule, or requirement that controls this decision.
Provide the joint stack drawing and identify the surfaces whose position, clearance, bearing preload, or alignment is being adjusted. Define the required outline, holes, slots, thickness series, datums, flatness, edge condition, surface finish, and cleanliness. State whether shims are installed individually or as a controlled stack and how each thickness will be identified. Material choice must consider compression, temperature, corrosion, electrical isolation, wear, and assembly handling in the actual stack.
Configuration, Interfaces, and Quoted Scope
The request must distinguish individual precision shim washers from a matched stack or a custom profile. Pack quantity and thickness identification need explicit confirmation. The quotation should identify the exact deliverable, quantity, revision, and supplied state. It should also list excluded mating parts, customer-provided items, required tools, documentation, and acceptance evidence. Options may be compared, but they remain alternatives until a specific configuration is approved.
Custom precision shims can follow a nonstandard outline, whereas precision shim washers use a ring form around a shaft or fastener. Precision metal shims and precision plastic shims have different stiffness, temperature, creep, wear, and isolation behavior. The drawing and stack requirement determine the acceptable family; material should not be swapped from a keyword match.
Precision Shims verification before quotation
- Confirm product identity from controlled drawings, interface definitions, or an approved sample.
- Review mechanical, electrical, material, environmental, and motion requirements as separate evidence sets.
- Record every included component and accessory, including both mating halves where applicable.
- Agree the inspection, continuity, dimensional, visual, functional, or documentation checks relevant to the item.
- Freeze the approved revision before production quantities or interchangeability are discussed.
An Engineering reference is provided as background for preparing the inquiry. It does not define the specification of a proposed item or certify that a generic product meets the application.
Inquiry Checklist
- Robot subsystem, installation location, function, and development phase
- Interface drawings, connector or part identities, revision, and mating direction
- Operating duty, routing or load conditions, environment, and maintenance expectations
- Required included items, tools, files, labels, packaging, and inspection documents
- Prototype quantity, production estimate, destination, and target schedule
Submit the available information through the RobotPiece quote list or contact page. Related product-type inquiries are organized under the Hardware category.
For a repeatable joint stack, the drawing should identify how custom precision shims are measured, marked, and oriented against the assembly datums. The final set of precision shims should be packaged by approved thickness or stack position so that prototype adjustment pieces are not mixed with the released production configuration.
Frequently Asked Questions
Should I request one shim or a thickness assortment?
Provide the assembly and adjustment method. A fixed production stack, a service assortment, and prototype tuning pieces require different quantity control, marking, packaging, and approval.
Can multiple thin shims replace one thicker shim?
Only if the joint designer approves the stack behavior, surface count, compression, handling, and tolerance result. The quotation should preserve the approved stack definition.
Does the illustration define the delivered robot joint precision shims?
No. The cover is a conceptual product-type illustration, not a photograph of a confirmed model. Actual dimensions, materials, connectors, finish, markings, included items, and supplied documents must be stated in the approved quotation.
