Torque Question
Thread Starter
Burning Brakes
Joined: Jul 2008
Posts: 843
Likes: 3
From: IL
Torque Question
I have a 1/2" drive torque wrench. I need to get a 33mm nut up to 118 ft-lbs. If I use a 1/2 by 3/4 adapter (the 33mm socket is 3/4) on the torque wrench does this change the precision of the torque? Thanks
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
I use adapters on torque wrenches with good effect as long as the components are of good quality and in good condition. I have cross-checked with non-adapter setups and found no significant difference.
Make sure you torque slowly to get the best result.
Make sure you torque slowly to get the best result.
Burning Brakes
Joined: Sep 2001
Posts: 893
Likes: 38
From: ATX
As long as you tighten -slowly- it will not make a difference, pretty much regardless of the quality of the adapter.
Trivia: because it doesn't put its torque down slowly (the dynamics of be situation being that the adaptor can twist & untwist, absorbing a significant portion of each pulse), using an adapter with an impact wrench will dramatically affect the torque it puts on a nut.
Trivia: because it doesn't put its torque down slowly (the dynamics of be situation being that the adaptor can twist & untwist, absorbing a significant portion of each pulse), using an adapter with an impact wrench will dramatically affect the torque it puts on a nut.
Burning Brakes
Joined: Dec 2003
Posts: 1,066
Likes: 9
From: Eddy Texas
As long as you tighten -slowly- it will not make a difference, pretty much regardless of the quality of the adapter.
Trivia: because it doesn't put its torque down slowly (the dynamics of be situation being that the adaptor can twist & untwist, absorbing a significant portion of each pulse), using an adapter with an impact wrench will dramatically affect the torque it puts on a nut.
Trivia: because it doesn't put its torque down slowly (the dynamics of be situation being that the adaptor can twist & untwist, absorbing a significant portion of each pulse), using an adapter with an impact wrench will dramatically affect the torque it puts on a nut.
Adapter + impact wrench = I can't get this damn nut to break loose!!!
Melting Slicks
Joined: Dec 2003
Posts: 2,857
Likes: 2
From: pawleys island sc
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
It's fine as long as what you are using leaves the bolt in line with the square drive of the torque wrench. Something like a crow's foot that moves the bolt off to the side will affect the torque.
Peter
Peter
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
... the torque setting will only change if you change the lever arm length of the configuration. If you search the internet, you can find correction formulas for different setups like crow's feet and offset adaptors, etc.http://www.trialsnuts.com/TORQUED.pdf
http://www.engineersedge.com/manufac...e_wrench_1.htm
http://www.engineersedge.com/manufac...e_wrench_2.htm
Last edited by ZeeOSix; Sep 1, 2008 at 02:15 PM.
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Tech Contributor
Joined: Jan 2007
Posts: 19,360
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From: Dyer, IN
No, because the axis of rotation,thus the torque applied about that axis, is the same.