Product Description
Can be mounted directly on 3/6 slot rotary tables or on a base plate when the rotary table has 3/6 or 4/8 T-slots
Base plates are designed for use with all rotary tables and other devices where back mounting chucks cannot be used
These chucks can also be mounted to a rough machined backplate, but will require machining of bolt hole patterns and projections for finished assembly
Technical Specifications Number of Jaws 3
Chuck Size 5
Hole Size 1.259
Description Semi-Steel Body, Front Mount
Weight 13 lbs
Type Semi-Steel, Front Mount Precision Lathe Chuck
Brand Name Bison
Mount Plain Back
TECHNICAL DATA
Chuck Diameter D in 5
Weight lb 9.3
Hole Diameter d in 1.2598
F in 4.2520
E H7 in 3.7402
C in .1575
H in 2.205
h1 in 0.787
Mounting Bolts, Thread G 5/16-18 x 2.17
# of Bolts 3
Back Thread M M8
Clamping Range d1 (min-max) .118 - 1.97
Clamping Range d2 (min-max) 2.05 - 3.78
Clamping Range d3 (min-max) 3.74 - 4.92
Clamping Range d4 (min-max) 1.34 - 2.99
Clamping Range d5 (min-max) 2.95 - 4.65
Bison Model Number 3274 2012 Mega Catalog Page 440, 508
Base plates are designed for use with all rotary tables and other devices where back mounting chucks cannot be used
These chucks can also be mounted to a rough machined backplate, but will require machining of bolt hole patterns and projections for finished assembly
Technical Specifications Number of Jaws 3
Chuck Size 5
Hole Size 1.259
Description Semi-Steel Body, Front Mount
Weight 13 lbs
Type Semi-Steel, Front Mount Precision Lathe Chuck
Brand Name Bison
Mount Plain Back
TECHNICAL DATA
Chuck Diameter D in 5
Weight lb 9.3
Hole Diameter d in 1.2598
F in 4.2520
E H7 in 3.7402
C in .1575
H in 2.205
h1 in 0.787
Mounting Bolts, Thread G 5/16-18 x 2.17
# of Bolts 3
Back Thread M M8
Clamping Range d1 (min-max) .118 - 1.97
Clamping Range d2 (min-max) 2.05 - 3.78
Clamping Range d3 (min-max) 3.74 - 4.92
Clamping Range d4 (min-max) 1.34 - 2.99
Clamping Range d5 (min-max) 2.95 - 4.65
Bison Model Number 3274 2012 Mega Catalog Page 440, 508
