Southbend SB1224 Manual Do Utilizador

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Instruction Sheet
PHONE: (360) 734-1540 • 
www.southbendlathe.com
MODEL SB1224 
12" 3-JAW SCROLL CHUCK
Copyright © April, 2011 by South Bend Lathe Co. 
WARNING: No portion of this manual may be reproduced without written approval. 
#CR13937 Printed in Taiwan
Mounting Type ......... Direct Mount D1-8 Camlock
Chuck Outer Diameter ...................12.2" (310mm)
Chuck Bore Diameter .....................4.05" (103mm)
OD Clamping Range ...... 0.12"–4.65" (15    –300mm)
ID Clamping Range ....... 1.78"–4.61" (90–290mm)
Static Clamping Force .............................. 9890 lbs
Maximum Chuck Key Torque .................137 ft/lbs
*Maximum Speed .................................. 1800 RPM 
Chuck Jaw M12 Cap Screw Torque .......78.8 ft/lbs
Rear Chuck M12 Cap Screw Torque ......78.8 ft/lbs
Chuck Weight .............................................. 105 lbs
Country of Origin ....................................... Taiwan
*  Even if a tailstock and steady rest are used, 
the maximum speed rating may not be 
SAFELY reached with certain workpieces. 
The workpiece must be balanced and 
appropriately sized for the chuck and lathe, 
and the chuck must be properly maintained 
to achieve maximum clamping force. As 
spindle speeds increase, centrifugal force 
also increases. If centrifugal force becomes 
too great, the workpiece can be thrown from 
the chuck with deadly force. Always use good 
judgment with each setup!
Specifications
Introduction
Incorrect use of this tool 
can result in death or 
serious injury. For your 
own safety, read and 
understand this entire 
document before using.
This chuck uses a direct-mount camlock system 
to attach to the spindle. Direct-mount chucks 
provide a number of advantages over chucks that 
require a back plate for mounting.
The main benefit is a larger maximum working 
area between the chuck jaws and tailstock. The 
increased space is created by the absence of a 
back plate between the chuck and spindle.
Another benefit is that direct-mount chucks 
require less initial setup time because the 
machinist is not required to machine a back plate 
to fit the chuck.
Figure 1. Main features of this chuck.
Threaded 
Pinion 
Retaining 
Pins
Direct
Mount 
Back
Camlock 
Studs
Reversible Top Jaws
Two-Piece Jaws 
Two-Piece 
Center
Split 
Chuck
Rear 
Chuck Cap 
Screws