To avoid these ads, REGISTER NOW!

Ratchet design question

bchee

Well-known member
Joined
Aug 20, 2007
Messages
6,148
Location
Texas
If you made a lower ratchet profile by shortening the square drive (by a minimal amount), how much strength would be lost?

I realize that sockets are standardized to accommodate the detent ball at a certain length, so changing the square drive would require changing the sockets and won't likely happen. (btw what is the name of the groove in the socket that accepts the detent ball??)
 

Attachments

  • ratchet.jpg
    ratchet.jpg
    29.7 KB · Views: 39
To avoid these ads, REGISTER NOW!

Delray

Well-known member
Joined
Aug 24, 2008
Messages
446
Location
Upper Peninsula of Michigan
The length of the shaft should not matter, The breaking point would be between the face of the ratchet and the back side of the socket where it meets the ratchet and that's not changed. A poor socket may fail as it will get more force in a smaller area. I don't see why it would not work with a quality high strength socket.
 

Merkava_4

Banned
Joined
Dec 26, 2007
Messages
14,518
Location
Clovis, CA.
Are you related to the guy who decided bolt heads need to be thin too? Can we please have the bolt heads the same thickness as the wrench open end? :cool:
 

Stanger

Well-known member
Joined
Oct 25, 2006
Messages
1,298
Location
Alton, IL
You want that drive to be a decent size. The more surface area that comes in contact with the socket, the stronger it is. You would gain more by designing a smaller socket.
 

chammyman

Well-known member
Joined
Aug 16, 2008
Messages
882
Location
Glasgow, Scotland
has anyone ever seen a ratchet head square drive fail? I haven't, its always been the actaul ratchet mecanism not the square head.

I can think of time when a shorter square would be usefull, a burried bolt, you need the length of the standard socket but the profile of the head is to big to fit in the gap and go on the socket. Then I just use a narrower profile ratchet, but in extreme sots yes it could be usefull.
 

paramudduck

Well-known member
Joined
May 24, 2007
Messages
1,758
Location
ohio
Actually yes I have. In fact the last time I was at the Swap day's a dealer had about 40 Snap on ratchets with the drives twisted off.
 

chammyman

Well-known member
Joined
Aug 16, 2008
Messages
882
Location
Glasgow, Scotland
well there we go then. I have seen busted snap ons and they have always burts the ratchet mechanism. I remember the othe rChris in the work broke his 3/8th. He was up the hospital for ages getting stitches after it :lol:
 
To avoid these ads, REGISTER NOW!

Stanger

Well-known member
Joined
Oct 25, 2006
Messages
1,298
Location
Alton, IL
I can think of time when a shorter square would be usefull, a burried bolt, you need the length of the standard socket but the profile of the head is to big to fit in the gap and go on the socket. Then I just use a narrower profile ratchet, but in extreme sots yes it could be usefull.
You're still not gaining anything because no one makes sockets that accept a drive that shallow. You would need completely custom sockets to gain anything.
 

Elroy

Banned
Joined
Oct 15, 2005
Messages
3,467
Location
kentucky
If you need additional "head" clearance do what Elroy did: :yikes:

Picture034.jpg
 

billymade

Well-known member
Joined
Apr 2, 2008
Messages
7,461
Location
New Mexico
Thats exactly what I was thinking! LOL! Yeah, use the junky Craftsman sockets; you could always get a warranty replacement later if you wanted to!
 

Elroy

Banned
Joined
Oct 15, 2005
Messages
3,467
Location
kentucky
OT: Elroy, what happened to our offset ratchet discussion? You disappeared.

He's right here. Elroy can't go back and forth for ever. If you have a single specific question, Elroy would be glad to address it but he can't really conduct a class in "statics" here.
 

wrenchr

Super Moderator
Staff member
Joined
Jul 29, 2007
Messages
11,603
Location
Michigan
has anyone ever seen a ratchet head square drive fail? I haven't, its always been the actaul ratchet mecanism not the square head.

I can think of time when a shorter square would be usefull, a burried bolt, you need the length of the standard socket but the profile of the head is to big to fit in the gap and go on the socket. Then I just use a narrower profile ratchet, but in extreme sots yes it could be usefull.

I have sheered them off!! Quick release ratchets are prone to this.
 

Stanger

Well-known member
Joined
Oct 25, 2006
Messages
1,298
Location
Alton, IL
He's right here. Elroy can't go back and forth for ever. If you have a single specific question, Elroy would be glad to address it but he can't really conduct a class in "statics" here.
Well, my last post contained quite a few specific questions/rebuttals on the subject. Its cool though, we can let it go. The basic, primary concept was established so that's enough.
 

Stanger

Well-known member
Joined
Oct 25, 2006
Messages
1,298
Location
Alton, IL
Ok Ok, Give Elroy a few minutes and he'll look it over and respond.
lol, really, its ok. I'm following your concept, I'm just trying to define it in the terms taught in class. If you want to reply, ok, if not, also ok.
 

shockwave

Well-known member
Joined
Oct 23, 2012
Messages
2,125
Location
Marietta,ga
I swear by this on even nuts and bolt the strength of the bolt is the width of the bolt so make sure it has 3/8 depth and you will be fine
 

Off-Street Parking

Well-known member
Joined
Aug 1, 2015
Messages
351
Location
Midwest
I don't see how you would gain anything...the height is determined by the socket, not the drive post.

Not so fast... This 2008 thread isn't done quite yet! :bounce:


The way you gain from shortening the drive on the ratchet is that you can then shorten the back of the socket.

Normal shallow sockets can only go to a certain point, before the hex end is the same depth as the fastener head, and the fastener head is right against the end of the square drive. That end of the socket can't get any shorter. But if you shorten the square drive, you can then shorten the back of the socket, and gain some additional clearance. :beer:
 
To avoid these ads, REGISTER NOW!
Top Bottom