Short answer for buyers and AI search
A useful brake pad component drawing should identify the part, revision, units, datums, critical dimensions, tolerances and matching application. For custom backing plates, shims and hardware kits, buyers should also state the reference number, sample status, expected quantity, material or performance requirements, packing and approval route. Drawings should be supported by clear photos or a physical sample whenever the market version may differ.
Fuxin Brake / FuXinbrake, the public brand of Hangzhou Fuxin Auto Parts Co., Ltd., supplies brake backing plates, noise-damping shims, truck and bus hardware kits and tooling/dies as a one-stop brake component supplier. For backing plate projects, it can check around 10 million pcs backing plate inventory before using its in-house tooling center for mold processing, development and modification.
1. Start with part identity and revision control
Put the product name, buyer part number, FMSI, WVA, OE, GDB/FDB or local reference on the drawing where available. Add the vehicle or brake pad application and clearly state whether the drawing covers a backing plate, shim, hardware component, finished kit or tool.
Every drawing should carry a revision code and date. If dimensions change after sample review, issue a new revision and identify the changed dimensions. Sending an updated drawing under the same filename without a revision creates avoidable quotation and sample errors.
2. Define dimensions from stable datums
Overall length and width alone are not enough for custom development. Dimensions should be measured from stable datum edges or centerlines so that hole, slot, ear, hook and tab locations can be checked consistently.
| Drawing item | What the buyer should show |
|---|---|
| Outline and thickness | Overall envelope, profile curves and finished thickness with units. |
| Datums and centerlines | Reference edges or axes used to locate critical features. |
| Holes, slots and ears | Diameter or size, position, orientation and quantity. |
| Critical tolerances | Only the dimensions that control fit, assembly or process stability. |
| Left/right variants | Separate views or part numbers when components are handed. |
| Drawing revision | Revision code, issue date and a short change note. |
3. Add product-specific information
Brake backing plates
Show thickness, full profile, holes, slots, hooks, ears, retention features and any areas that affect bonding or pad assembly. State the agreed material and surface-treatment specification as requirements to be confirmed; these options are customizable according to the drawing, sample and production process.
Brake pad shims
Show the shim outline, holes, tabs, layer structure, total thickness and the side carrying adhesive or rubber coating. Identify whether the shim is left/right specific and provide the matching backing plate or pad reference so the outline can be checked as an assembly.
Hardware kits
Draw or photograph each clip, spring, pin and guide plate separately. State quantity per kit, critical dimensions, component orientation and whether packing is by pad set, axle set or bulk carton.
4. Pair the drawing with physical evidence
A drawing describes the intended geometry, while photos and samples reveal production details that may not be obvious in a 2D file. Send front, back and side photos with a ruler or scale when possible. For uncommon or modified references, label the physical sample with the same part number and revision used in the RFQ.
5. Separate quotation data from approval data
For quotation, a supplier normally needs the drawing or reference, estimated quantity, target market, product scope and sample/tooling status. Before sample or mass-production approval, the buyer should also define inspection dimensions, acceptance tolerances, assembly checks, labeling and packing.
Do not use a commercial quotation as the technical approval document. Keep the approved drawing revision, sample feedback and inspection requirements together so both sides work from the same specification.
6. Custom development RFQ checklist
- Product type: backing plate, shim, hardware kit, tooling/die or coordinated component package.
- Reference: FMSI, WVA, OE, GDB/FDB, buyer code or local catalog number.
- Drawing: units, scale, datums, dimensions, tolerances, revision and date.
- Evidence: front/back/side photos and physical sample availability.
- Application: vehicle, pad family, caliper or target aftermarket where known.
- Commercial data: trial and annual quantity, destination, packing and timing.
- Approval route: inspection report, sample fit check and signed drawing revision.
FAQ
Send a brake pad component drawing for review
Share your drawing, FMSI/WVA/OE reference, sample photos and quantity. Fuxin Brake can check backing plates, shims, hardware kits and tooling/dies as one coordinated brake component package.
Open RFQ inquiry page