Troubleshooting Tips: Centerless Grinding Concave work (low center)`, Work guides on entrance and exit sides deflected toward the grinding wheel. Also see . Centerless grinders are the dependable workhorses of the manufacturing world. With regular maintenance and TLC, your centerless grinding. Achieving consistent and quality results from the centerless grinding process requires an understanding of the basic fundamentals. Most application problems .

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Use one standard paper washer blotting paper if other not available under flanges and tighten down. Regulating wheel speed too slow.

Worn spiral gear on slide adjusting screw. Stock removal on first pass too great. Even spiral lines on work piece whose lead corresponds troubleshootijg feed rate. Do not subject wheels to hard blows.

Radiac Abrasives | Centerless Grinding Archives – Radiac Abrasives

Tighten spindle nut or clamping screws through collet. Clean coolant tank and machine. Take lighter cuts when grinding. Take lighter cuts or in feed at slower rate. Make certain cap screws are tight in mount. Substitute harder grade or finer grained wheel.

Grinding wheel too hard for particular work. Increase flow of coolant. Inspect for cracks by tapping gently while suspended with a light implement, such as screwdriver handle.


Sitemap All prices are in GBP. Below, are listed problems, which may be encountered whilst grinding. Straighten in press before grinding. If it is not sufficient, the natural frequency of grinder normally damped out by rigid construction may be emphasised and combine with external vibration to make conditions worse. Incorrect wheel for particular job. Regulating wheel loose on spindle or mount. Loose diamond holder ; loose or cracked diamond. Under each are listed probable causes, and under each cause, possible corrections.

Dress these out of wheel. Use crowned cam when dressing grinding wheel. Work support blade loose. Incorrect dressing of grinding wheel Turn diamond or replace with new one.

Loose spindle bearing Adjust spindle bearings. Too great a difference in grain size between roughing and finishing wheels. When a problem occurs while grinding, finding the cause is not easy due to the variety of complexly intertwined factors involved.

If result is not a clear ping do not use wheel. Eliminate cause of side strain on ejector mechanism. Make first cut light at high traverse rate to attain maximum straightening effect.

Centerless Grinding Adjustments

Keep flange screws tight at all times. Work jammed into wheel causing excessive pressure. Run wheel long enough to throw off coolant. Dress wheel more open with a sharp diamond and more rapid traverse. Too heavy stock removal – particularly on in feed work. Deep irregular marks caused by loose wheel. Reset gib Loose work support blade allows deflection.


Irregular flats on in feed work pieces when work left between wheels too long. Isolated deep marks due to improper dressing.

Otherwise moisture concentrated at bottom will cause unbalance. Increase regulating wheel speed.

Troubleshooting Tips: Centerless Grinding

Do not force or jam work into wheel. Be certain insulation is thick enough to be effective.

Dress wheels correctly, and, if necessary, increase inclination angle of regulating wheel spindle so work feeds all the way out. Uneven fine lines on work piece due to faulty dressing Do not allow diamond to dwell on wheel. Use coarser grain size and softer grade.

Rough grind with more and smaller cuts, or use harder wheel for roughing. Irregular scratches of various lengths and sizes due to dirty coolant. Lubricate trojbleshooting manufacturers “Lubrication Instructions and Specifications”. Dress roughing wheel at slower traverse rate.

If water hard, treat with a water softener before mixing with oil.