Speed Selector’s aluminum sheaves are 100% machined, resulting in perfect balance with no wobble.

They have potential rim speed capabilities of 20,000 FPM, and are 1/3 to 1/2 of the weight of cast iron sheaves.

Model 1922 – Companion Sheave Dimensions
Part No.
O.D.
P.D.
A
B
C
D
Wt.
1922-6 SDS
6
5.78
4 3/4
1 7/16
11/32
7/32
1 1/2
1922-7 SDS
7
6.78
5 3/4
1 7/16
11/32
7/32
1 1/2
1922-8 SDS
8
7.78
6 3/4
1 7/16
11/32
7/32
3 1/4
1922-9 SDS
9
8.78
7 3/4
1 7/16
11/32
7/32
4
1922-10 SDS
10
9.78
8 3/4
1 7/16
11/32
7/32
4 3/4
1922-12 SDS
12
11.78
10 3/4
1 7/16
11/32
7/32
7 1/2
1922-14 SDS
14
13.78
12 3/4
1 7/16
11/32
7/32
9
1922-16 SDS
16
15.78
14 3/4
1 7/16
11/32
7/32
11 1/2
1922-18 SK*
17.8
17.60
16 3/4
1 7/16
5/32
19/32
22.4
* ONLY AVAILABLE IN CAST IRON