Key dimension. Keyway dimension. Reference b h. C l. Basic dimension of b1 and b2. Sliding type. Normal type. Fastening type r1 and r2. Basic dimension.

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

Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm) Keyway (mm) Key (mm)* From To Width (W) Depth (h) Width (W) Depth (T) 6 8 2 1.0 2 2 9 10 3 1.4 3 3 11 12 4 1.8 4 4 13 17 5 2.3 5 5 18 22 6 2.8 6 6 23 30 8 3.3 8 7 31 38 10 3.3 10 8 39 44 12 3.3 12 8 45 50 14 3.8 14 9 51 58 16 4.3 16 10 59 65 18 4.4 18 11 66 75 20 4.9 76 86

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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

METRIC KEYWAY CALCULATOR Key dimensions: Parallel keys are most commonly used. The key length should be less than about 1.5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft becomes twisted when loaded in torsion.

Metric Key & Keyway Dimensions Per ISO/R773 - Js9 Width Tolerance « + Keyways will be furnished per ISO/R773 and Js9 width tolerance unless otherwise specified. (Dimensions comply with DIN 6885/1) † Requires use of chamfered keys. Surface Finish — Sides and bottom of keyways shall not exceed 250 micro inches.

It is also possible to make a calculation of frictional press-fitting, which transmit torque by frictional forces. In this calculation, a connection with a prismatic key with a length L , height H

The hub keyway is dimensioned by its width and depth on the shaft - keyway sides. Referencing Figure 1, the keyway dimension is W x T 1. Unless otherwise specified, the shaft keyway is assumed to be standard. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. The common

Start of calculation · Hub. Fit regarding height Width Groove depth t_2. Tolerance. minimum groove radius r_2. maximum groove radius r_2. Diameter d_2 = shaft 

keyway dimension is W x T1. Unless otherwise specified, the shaft keyway is assumed to be standard. A list of standard keyway and corresponding key sizes