Should all parts be entered if only some need grinding?

Yes. Enter the full scope, then use the percentage field for the portion requiring precision grinding.

Where do first-article inspection costs go?

Put first article, CMM, gauge setup, or supplier minimum charges in the fixed setup and inspection cost.

Can supplier grinding be estimated?

Yes. Use the supplier quote as the per-part cost and add freight or minimum charges if they apply.

How can I use the result?

Use it to compare in-house versus outsourced grinding, price specials, and quantify rework or tolerance cost.

Bearings, Gears & Power Transmission calculator

Precision Grinding Cost Calculator

Precision grinding cost is driven by surface finish, tolerance, wheel dressing, setup, gauging, material hardness, and rework risk. This calculator helps estimators and production teams evaluate grinding cost for bearing components, gear faces, shafts, bores, and power transmission parts.

What this calculator does

Estimate precision grinding cost for bearing races, shafts, gears, or bushings from grind quantity, cost rate, covered share, and fixed setup adders.
a shop needs to quote or compare the cost of precision grinding for rotating equipment components
Returns estimated total cost for the precision grinding scope.

Formula used

Variable precision grinding cost = grinding scope components × grinding cost per part × parts requiring precision grinding share
Total precision grinding cost = variable precision grinding cost + fixed grinding setup and inspection cost

Inputs explained

Components in grinding scope: Use bearing races, rollers, shafts, gears, bushings, sleeves, or other components covered by the estimate.
Precision grinding cost per part: Use the internal standard, supplier quote, or cost model for the specified tolerance and finish.
Parts requiring precision grinding: Use the portion of the batch that needs the grinding operation, regrind, or special finish.
Fixed grinding setup and inspection cost: Add wheel setup, dressing, fixture setup, gauge setup, first article, CMM, or supplier minimum charges.

How to use the result

Use it for make-buy decisions, supplier quote checks, special finish pricing, rework costing, and margin review.
It does not calculate grinding parameters, burn risk, wheel wear, tolerance capability, or inspection acceptance.

Common questions

Should all parts be entered if only some need grinding? Yes. Enter the full scope, then use the percentage field for the portion requiring precision grinding.
Where do first-article inspection costs go? Put first article, CMM, gauge setup, or supplier minimum charges in the fixed setup and inspection cost.
Can supplier grinding be estimated? Yes. Use the supplier quote as the per-part cost and add freight or minimum charges if they apply.
How can I use the result? Use it to compare in-house versus outsourced grinding, price specials, and quantify rework or tolerance cost.

Last reviewed 2026-05-12.