Standard Metric Keys & Keyways for Metric Bores with One Key • Couplings All Types (Page 1 of 2) Metric Key & Keyway Dimensions Per ISO/R773 - Js9 Width Tolerance Key & Keyway Dimensions - Millimeters Falk Coupling Hub Keyway Dimensions - Inches Shaft Diameter "D" Key Size Nominal Keyway Width Hub "W" Keyway Depth Hub "T2
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P9 tight fit (standard design) JS9 or N9 loose fit (standard design) Other tolerances / tolerance ranges must be specified separately and require a written agreement. see also • Parallel Keys DIN 6885 → www.jwwinco.com d b P9 / JS9 Hub keyway b P9 / N9d - t Shaft keyseat h t 1 = d + t 2 t 2 t 3 = d - t 4 t 4 30 1.18 8 0.31 8 0.31 7 0
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Hub keyway depth is one-half the nominal height of the key and measured from the side corner. The dimension from the top of the keyway to the opposite bore side, “T-dim”, is calculated from (refer to ANSI/AGMA 9002-B04) the following: T = bore + (h kw - Ch)
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Keyway Connection In order to transmit rotation from the shaft to the hub of gear wheels, pulleys, sprockets, couplings, flanges and other coaxial parts, rigid and frictional joints of various types are used. Here we can calculate rigid connections, namely the pinned
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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
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11/13 · For a solid steel shaft of 18mm diameter, with keyway 6 wide x 32 long by 3.5 deep: T = (390 x 10 6 * 0.018 * 0.032 * 0.0035) / 2. T = 393.1 Nm. In this case, the torque that can be transmitted when a key is added to the shaft is approximately 12 percent lower than the torque that can transmitted by the plain shaft (393 Nm vs 447 Nm). However
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Keyway. Diameter. Nominal Shaft. Bore. Keyway. Keyway. Diameter. Diameter. (Width x Depth). Radius. Over to Including. Diameter minus. Tolerance.
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tem, it is the standard practice to specify the key size. In the English and by the width and the depth measured from the raduis of the shaft to the.
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DIN 6885 Keyway, key details Extract Page 1 heavy type d b P9 / JS9 Hub keyway b P9 / N9 Shaft keyway h t 1 = d + t 2 t 2 t 3 = d - t 4 t 4 6 2 2 2 7 1 +0,1 4,8 1,2 +0,1 7 2 2 2 8 1 +0,1 5,8 1,2 +0,1 8 2 2 2 9 1 +0,1 6,8 1,2 +0,1 9 3 3 3 10,4 1,4 +0,1 7,2 1,8 +0,1
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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
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Standard Metric Keys & Keyways for Metric Bores with One Key • Couplings Coupling Hub Keyway Dimensions – Inches. Shaft Diameter. “D”. Key Size. Nominal.
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12/15 · The second is a P9 tolerance. This is an undersized clearance. The advantage of the Js9 tolerance is that the key can be inserted and the gear manipulated without much difficulty. Whereas the P9 tolerance is a press fit tolerance. Once the key is inserted into the keyway, it is not going to move. For those engineers who wish to put a square peg
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Bore tolerances per BS 4500 H7 fit. 2. Keyway width tolerances per BS 4235 P9 fit. 3. Keyway depth and fillet radius per BS 4235. 4. All dimensions are in millimeters. 5. Actual shaft fit will vary depending on actual shaft diameters.
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When the key is of an appropriate size relative to the torque to be transmitted, a shaft thicker than the applicable shaft diameter may be used.
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c9 d8 e7 e8 f7 g6 h5 h6 h7 h8 js6 js7 k6 m6 n6 p6 p7 r6 s6 - 3-60-85-20-34-14-24-14-28-6-16-2-8 0-4 0-6 0-10 0-14 ±3 ±5 +6 0 +8 +2 +10 +4 +12 +6 +16
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20 rows · Standard dimensions for keys and their grooves.
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17656-3. Shaft and Hub Keyway and Key Sizes. Keys connecting shafts to pulley hubs are commonly used to achieve reliable no-slip power.
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Fits, Dimensional tolerances, Dimensions, Holes, Shafts (rotating), Selection, SI system (metric), Diameter, Machining tolerances To find similar documents by classification: 17 100 out of 1000 General dimaensional tolerance of cut width Unit:mm Table 2 Calculate fits and tolerances for shafts and holes here 1, leaving you with a minus tolerance of 0 1, leaving you with a minus tolerance of 0.
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KEYS AND KEYWAYS 2361 6 'S O 6 S 6 'O 00 O co xo 00 00 00 co oo 00 00 00 x oo 00 00 c; g: 00 o O
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ANSI-B17.1 Size Shaft Dia. 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
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For parallel key The shape and dimension of keyway used for the parallel (3) The measuring positions of width (b₁) and depth (t₁) of the keyway in shaft.
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