Attaching to a shaft - Revision history

Lynch at 21:26, 23 June 2010

2010-06-23T21:26:01Z

2010-06-22T21:48:47Z

2010-06-21T12:12:41Z

2010-06-21T12:10:19Z

2010-06-21T12:07:23Z

2010-06-21T12:06:41Z

2010-06-21T12:03:57Z

2010-06-20T20:22:02Z

2010-06-20T20:21:13Z

2010-06-20T20:20:32Z

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 * Shaft locks, taper locks, and keyless bushings [[Image:shaftlock.jpg]]
-Typically two cylindrical pieces are put around the shaft.  As they are screwed together axially, an inner taper on one of the pieces clamps radially on to the shaft.
+Typically two cylindrical pieces are put around the shaft.  As they are screwed together axially, an inner taper on one of the pieces clamps radially on to the shaft.  These are often used to simply cap a shaft (not attach anything else), or the outer diameter is used to widen the shaft, for something else to be attached to.
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 * Epoxy

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 * [http://www.nmbtc.com/bearings/engineering/fitting.html Press fit or interference fit]; see also the [http://en.wikipedia.org/wiki/Interference_fit wikipedia page] (note:  be careful not to apply axial press forces large enough to damage the motor; the shaft should be supported [clamped] during the press to avoid this)
 * [http://en.wikipedia.org/wiki/Set_screw Set screws]
-[[Image:setscrew.jpg|120px|thumb|A rigid coupler that couples two shafts, possibly of different diameter, using one set screw for each.]]  To get good holding torque with set screws, they have to be clamped down hard on the shaft, which can damage the shaft.  For larger holding torques, a better option is to have a friction fit around the entire shaft.  This can be achieved by compliant elements that squeeze onto the shaft as one or more screws are tightened.
+[[Image:setscrew.jpg|120px|thumb|A rigid coupler that couples two shafts, possibly of different diameter, using one set screw for each.]]  To get high holding torque with set screws, they have to be clamped down hard on the shaft, which may damage the shaft.  For larger holding torques, a better option is to have a friction fit around the entire shaft.  This can be achieved by compliant elements that squeeze onto the shaft as one or more screws are tightened.
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 * Split clamp [[Image:split-clamp.gif]] [[Image:splitclamp2.jpg]]

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 * Shaft locks, taper locks, and keyless bushings [[Image:shaftlock.jpg]]
-Typically two cylindrical pieces are put around the shaft.  As they are screwed together, an inner taper on one of the pieces clamps on to the shaft.
+Typically two cylindrical pieces are put around the shaft.  As they are screwed together axially, an inner taper on one of the pieces clamps radially on to the shaft.
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 * Epoxy

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 As the nut is tightened, the inner diameter shrinks, clamping on to the shaft, and the outer diameter grows, clamping on to the inside diameter of the component.
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-* Shaft locks and taper locks [[Image:shaftlock.jpg]]
+* Shaft locks, taper locks, and keyless bushings [[Image:shaftlock.jpg]]
 Typically two cylindrical pieces are put around the shaft.  As they are screwed together, an inner taper on one of the pieces clamps on to the shaft.
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 * [http://www.fennerdrives.com Fenner Drives]
-* [http://www.mcmaster.com McMaster-Carr] (split collars, shaft couplers, trantorque bushings)
+* [http://www.mcmaster.com McMaster-Carr] (split collars, shaft couplers, trantorque bushings, keyless bushings)
 * [http://www.sdp-si.com Stock Drive Products] (shaftloc and other couplings)
 * [http://www.lovejoy-inc.com Lovejoy]

@@ Line 5: / Line 5: @@
 * [http://www.nmbtc.com/bearings/engineering/fitting.html Press fit or interference fit]; see also the [http://en.wikipedia.org/wiki/Interference_fit wikipedia page] (note:  be careful not to apply axial press forces large enough to damage the motor; the shaft should be supported [clamped] during the press to avoid this)
 * [http://en.wikipedia.org/wiki/Set_screw Set screws]
-[[Image:setscrew.jpg|120px|thumb|A rigid coupler that couples two shafts, possibly of different diameter, using one set screw for each.]]
+[[Image:setscrew.jpg|120px|thumb|A rigid coupler that couples two shafts, possibly of different diameter, using one set screw for each.]]  To get good holding torque with set screws, they have to be clamped down hard on the shaft, which can damage the shaft.  For larger holding torques, a better option is to have a friction fit around the entire shaft.  This can be achieved by compliant elements that squeeze onto the shaft as one or more screws are tightened.
-To get good holding torque with set screws, they have to be clamped down hard on the shaft, which can damage the shaft.  For larger holding torques, a better option is to have a friction fit around the entire shaft.  This can be achieved by compliant elements that squeeze onto the shaft as one or more screws are tightened.
 <br clear=all>
 * Split clamp [[Image:split-clamp.gif]] [[Image:splitclamp2.jpg]]