Fits and tolerances calculator. Calculate fits and tolerances for shafts and holes here. Based on standard tolerances and limit deviations in accordance with ISO 286. The calculator has been

ISO 286-2: - Geometrical product specifications (GPS) -- ISO code system for tolerances on linear sizes (Part 1: Basis of tolerances, deviations and fits & Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts) ISO 3912:1977 - Woodruff keys and keyways; ISO 3117:1977 - Tangential keys and keyways

As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. The first is Js9. This is a +/- band clearance; the value of the tolerance is equally oversized or undersized. The second is a P9 tolerance. This is an undersized clearance. The advantage of the Js9 tolerance is that the key can be

In this calculation a shaft of length L , diameter D , with keyway dimensions K × H is considered. The shaft is under torque T , applied to the end. As a result 

Size. Shaft Dia. 3/8 .375 / .376 .093 / .095 .432 / .442. 2-5/16 2.312 / 2.314 .625 / .628 2.587 / 2.597. 7/16 .437 / .438 .093 / .095 .493 / .503.

Square Keyway Tolerances 3/8 .3750 7/16 .4375 Page 1 of 6. PFEIFER INDUSTRIES, LLC. 2180 Corporate Lane, Suite 104 ~ Naperville, IL 60563 USA Phone (630) 596-9000 Fax (630) 596-9002 E-mail: [email protected] Web site: www.pfeiferindustries.com Keyway Bore Diameter Size Bore Reference -0.000 / +0.010

Shaft Bore Keyway Keyway Diameter Nominal Shaft Bore Keyway Keyway Diameter Diameter (Width x Depth) Radius Over to Including Diameter minus Tolerance (Width x Depth) Radius 1/2 .500 / .501 1/8 x 1/16 1/64 9/16 to 7/8 .001 +.0005 3/16 x 3/32 1/64

06/03 · According to the worst case tolerance stack up analysis disk stack height can vary from 65.5 mm to 68.5 mm. Whereas according to the RSS method disk height can vary from 66.2584 mm to 67.74162 mm. If you look at the results from Worst case and RSS method. In the RSS method, the tolerance band is reduced.

e – Shaft strength factor ; w – Keyway width ; d – Shaft diameter ; h – Keyway depth (= Key thickness (t)/2).

Keyway. Diameter. Nominal Shaft. Bore. Keyway. Keyway. Diameter. Diameter. (Width x Depth). Radius. Over to Including. Diameter minus. Tolerance.

Standard Metric Keys & Keyways for Metric Bores with One Key • Couplings. All Types Coupling Hub Keyway Dimensions – Inches. Shaft Diameter.