The Mechanics of Belt Creep

Posted by GGA (A) on July 31, 2015 at 12:42:20

Thanks to Mark Kelly's excellent posts I think I have an understanding of belt creep. Mark has stated on several occasions word to the effect:

"Creep is necessary for a belt drive to work. The mechanism of creep is how the belt transmits force from the pulley to the platter, so no creep = no rotation."

A flat film belt made from Mylar or Kapton will have very little belt creep because it it has very little stretch. This seems to be at odds with Mark's statement.

So how do film belts transmit force from the pulley to platter? Is it really done via the small amount of belt creep? Or is it exclusively friction?

As a secondary question do the driven and non-driven sides of a film belt have essentially the same tension?

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Topic - The Mechanics of Belt Creep - GGA 12:42:20 07/31/15 (16)

RE: The Mechanics of Belt Creep - pictureguy 19:57:47 08/09/15 (2)

RE: The Mechanics of Belt Creep - Not Yet There 08:11:49 08/10/15 (1)

RE: The Mechanics of Belt Creep - pictureguy 09:21:33 08/10/15 (0)

Far more concerned about the belt creep around my waist. nt - jdaniel@jps.net 19:36:45 08/09/15 (0)

Not at odds - Mark Kelly 03:32:03 08/03/15 (1)

You explained this here a few years ago - it was brilliant! - B.K. 17:24:06 08/05/15 (0)

RE: "do the driven and non-driven sides of a film belt have essentially the same tension?" ... - andyr 02:48:23 08/01/15 (0)

RE: The Mechanics of Belt Creep - mosin 14:57:38 07/31/15 (8)

I've wondered about fabric-based belts... - Bry 08:39:31 08/01/15 (1)

RE: I've wondered about fabric-based belts... - unclestu 14:08:55 08/01/15 (0)

RE: The Mechanics of Belt Creep - GGA 15:34:01 07/31/15 (4)

RE: The Mechanics of Belt Creep - B.K. 19:29:58 08/09/15 (0)

RE: The Mechanics of Belt Creep - Lakeshore Larry 05:56:43 08/01/15 (0)

"8/20/2017. One good..." 2017? Wow, I must have really over-slept this morning!! )MT( - J. S. Bach 21:10:16 07/31/15 (1)

Mark is so smart,... - Lew 08:30:48 08/01/15 (0)

RE: Belt Creep - unclestu 15:30:34 07/31/15 (0)

The Mechanics of Belt Creep

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