For short taper spindle noses Type A & D, measure the pilot diameter and length (B), bolt circle diameter (dimensions F1 & F2) and diameter of the holes (dimensions E1 & E2)
In the case of A type mount, check the number of bolt circles (A2 mount or A1 mount).
All chucks with A1 mounting chuck can only be mounted on A1 spindle head.
All chucks with A2 mounting can be mounted on the A1 or A2 spindle nose.
For the Camlock spindle type D1, check the number of holes and stud diameter.
For the long taper spindle noses Type L, check pilot diameter, length and thread size (A & B).
For the threaded spindle noses, check the thread diameter, number of threads per inch and length (dimensions B & D), plus overall length (dimension F)
Camlock Spindle Tpye D1
Spindle Nose
A
F
B
C max.
E
No. of Holes
Camlock Stud Dia
D1-3
3.622"
2.7820"
2.1250"+0.00025"
0.4375"
0.5937"
3
9/16"
D1-4
4.606
3.2500
2.5005+0.0005
0.4375
0.6562
3
5/8
D1-5
5.748
4.1250
3.2505+0.0005
0.5000
0.8750
6
3/4
D1-6
7.126
5.2500
4.1880+0.0005
0.5625
1.000
6
7/8
D1-8
8.858
6.7500
5.50075+0.0005
0.6250
1.125
6
1
Threaded Spindle
Spindle Nose A
B
F1
D
E
1"-10" UNS-2B
1.015"
1.500"
0.4375"
1.000"
1"-1/2" -8" UNS-2B
1.515"
1.500"
0.4375"
1.000"
2-3/16"-10" UNS-2B
2.2025"
1.750"
0.5625"
1.125"
2-1/4"-8" UNS-2B
2.260"
1.750"
0.5625"
1.125"
2-3/16"-6" UNS-2B
2.2025"
1.750"
0.5625"
1.125"
2-3/4"-8" UNS-2B
2.760"
2.0625"
0.6875"
1.3125"
Spindle Type A1 & A2
Type A1 has tapped holes on both inner and outer bolt circles.
Type A2 does not have holes in the inner bolt circles.
