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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Wheels must be dry and free of sawdust when applying this test.

Loose work support blade allows deflection. Roughing wheel breaks down too fast. When through feed grinding, make certain guides on troubleshoiting wheel side are parallel and even with wheel face.

Scale from hardened work dulls wheel grains. Also for small diameter work it will generally be necessary to reduce angle. Loose spindle bearing Adjust spindle bearings. Suspend wheel and tap lightly before mounting. Keep flange screws tight at all times. Work jammed into wheel causing excessive pressure. Work discoloured, burned Work chattering. Tighten blade in body and tighten body to lower slide.


Substitute harder grade or finer grained wheel. Eject work pieces as soon after sizing as possible. Uneven, or evenly spaced lines on work piece due to extraneous vibrations If impossible to change machine location, mount grinder on some vibration insulating material.

Troubleshooting | Noritake Co., Ltd.

Rotate or change troublesyooting to—get sharper dressing. Balance wheel on same mount as used for grinder. Incorrect wheel for particular job. Maintain diamond traversing at an even rate. Have collet on bench. Straighten in press before grinding. Store grinding and control wheels in a dry place. Grain marks due to too soft or coarse a wheel.

Regulating wheel speed too slow. Scroll to Top Copyright Midland Abrasives.

Troubleshooting Tips: Centerless Grinding

Increase number of passes. Coolant incorrect or dirty. Determine whether caused by type of wheel, dull diamond, dirty or too strong a coolant. Take lighter cuts when grinding. Insufficient stock left on piece for grinding. If sizing still out, after checking every other possible source of trouble, scrape bearings.


When shoulder grinding if regulating wheel is forward of grinding wheel, it prevents grinding to shoulder and causes work to pick up xenterless chatter. 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. Use crowned cam when dressing grinding wheel.

Stock removal on first pass too great. Isolated deep marks due to improper dressing.

Motor bearing defective or armature out of balance. Sitemap All prices are in GBP.

Be certain to adjust size again. Troubleshpoting flats on in feed work pieces when work left between wheels too long. Otherwise moisture concentrated at bottom will cause unbalance. Be certain insulation is thick enough to be effective. Bowed short piece, about twice length of wheel face.

Avoid getting oil on wheel.