Product Details
Discuss your application or request a sample
The green backing identifies a different assembly
The backing and center interface are part of this product's identity. Include their dimensions and mounting arrangement in the inquiry, together with the felt thickness. A front photograph helps distinguish the item, but a reverse view and drawing provide the information needed to check fit. Do not infer machine compatibility from the green color.
100mm and 4 inches need careful naming
Specify the required actual diameter rather than relying on a rounded inch description. Four inches converts to 101.6mm, so it is not exactly the same measurement as 100mm. Identify any tolerance and match the measured assembly to the approved equipment. A clear metric specification helps avoid confusion when different sales channels use nominal inch names for similar-looking products.
Define the polishing task separately from the mounting
After establishing fit, describe the workpiece and its condition before polishing. Identify the compound and finish target used in an existing process, or agree a sample trial for a new one. The fact that a backed wheel fits the machine does not by itself establish that the wheel-and-compound combination will produce the desired finish.
Application scenarios to evaluate
Use these scenarios to define a sample trial; suitability depends on the supplied specification and approved process.
| Buying situation | Selection focus | Trial objective |
|---|---|---|
| Replacing a green-backed felt wheel | Backing shape, center interface and felt dimensions | Match the complete assembly rather than face appearance. |
| Reconciling a 100mm requirement with an inch catalog | Actual measured diameter and tolerance | Verify fit instead of assuming a rounded inch label is exact. |
Specifications and selection details
| Nominal size | 100mm; custom dimensions by inquiry |
|---|---|
| Product material | Wool fiber |
| Construction construction | Pale felt rim with green backing and center opening |
| Required fit details | Measured diameter, felt thickness, backing dimensions, center interface and rated speed |
Compare with a felt-flap disc or an unbacked wheel
The pictured backed wheel, the overlapping-flap disc and a solid bore-mounted wheel have different constructions. Select between them according to the approved equipment and intended working contact. Keep the complete mounting arrangement in the comparison. A common size label should not obscure a difference in backing, interface or working surface.
Keep the backing specification in every reorder
Record the backing shape, center geometry and felt dimensions alongside the product reference. Compare these details during incoming inspection, not just the visible face color. Where a supplier proposes a construction change, evaluate the changed item before treating it as the same repeat-order product.
Qualify the wheel as part of the finishing sequence
Begin with the condition of the part before polishing. Define the required appearance and any dimensions that must be preserved. Use the exact approved wheel assembly and compound under their operating instructions, then inspect the finished feature using the agreed method. Retain the sample reference and process notes with the purchase specification. A later change in wheel geometry, felt construction or compound should be reviewed against that same acceptance standard.
Questions to investigate when the result changes
| Observation | What to review |
|---|---|
| The surface is brighter but defects remain | Inspect whether the defect belongs to an earlier preparation stage. Additional gloss does not prove that a scratch or dimensional problem has been removed. Reassess the sequence before extending the polishing operation. |
| Results change after a wheel replacement | Compare dimensions, mounting and the agreed felt specification with the approved sample. Also check whether the preparation or compound changed; a similar-looking wheel is not necessarily the same construction. |
| Uneven contact or unexpected vibration | Stop and inspect the assembly and mounting in accordance with the supplier's instructions. Check the actual fit and condition rather than trying to compensate with pressure or an improvised attachment. |
Frequently asked questions
Is 100mm exactly 4 inches?
No. Four inches is 101.6mm. Confirm whether the product is supplied to a 100mm measurement or another nominal standard before ordering.
Does the green backing prove that it fits an angle grinder?
No. Backing color does not establish tool compatibility. Match the complete mounting interface and speed rating to the machine.
What should I inspect on the backing assembly?
Compare the backing dimensions, center geometry and condition with the approved drawing and sample. Confirm the felt dimensions as well. A matching green color is not sufficient to identify an equivalent assembly.
How do I choose a polishing compound?
Start with the actual workpiece material, any coating and the finish required. Use the compound supplier's recommendations and evaluate it with the intended felt assembly. Do not select a compound solely because its color looks familiar.
Can one felt tool be used for every polishing stage?
Keep the process and possible carryover in mind. Separate, clearly identified tools can help control different compounds and workpiece materials. Follow the applicable cleaning instructions rather than assuming a used tool is ready for a finer stage.
How should a repeat-order specification be recorded?
Keep a dimensioned description, material designation where applicable, mounting details, approved operating information and sample reference together. Add the compound and workpiece used in the accepted trial so substitutions can be assessed meaningfully.
Request a sample or a defined wholesale quotation
Send your required size and mounting details, workpiece material, finish target and machine model. If replacing an existing item, include its marking and front, reverse and side photographs. State the sample quantity, expected order quantity, packaging requirements and destination.
Ask for the proposed specification, included accessories, price, sample terms and lead time in the quotation. For a repeat purchasing program, keep the approved sample reference and the agreed inspection criteria with every order.
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