Products Catalog
Hydro-sheave couplings are mounted to the motor shaft end and provide minimal overhung loads for parallel (belt-driven) shaft applications. The smaller sizes (7-12.4) are installed very quickly and easily utilizing a slotted collet in which no drilling or tapping is required. The slotted collet is finished bored to fit standard NEMA B motor shaft dimensions. The larger sizes (15-24) are installed with a center locating bolt that does require drilling and tapping to ensure proper mounting. The Model HSD Fluid Coupling consists of a basic fluid coupling, input and output group, and a standard customer supplied QD type sheave. The sheave is mount ed on a coupling that has been installed on the end of a driveshaft.
Unit of Measure



N/A 19

Bore Size

N/A 3-3/8 in

Dimension A

N/A 22.244 in

Dimension B

N/A 7.480 in

Dimension D

N/A 3.375 in

Dimension Q

N/A 1-1/4 7 UNC

Dimension S

N/A 7/8 9 UNC

Dimension T

N/A 8.449 in

Dimension V

N/A 3.635 in

Dimension J

N/A 8.250 in

Dimension W

N/A 0.875 in

Dimension B1

N/A 3.779 in

Maximum C

N/A 17.913 in

Dimension C1

N/A 20.315 in

Dimension E

N/A 8.858 in

Dimension F

N/A 5.1484 in

Dimension G

N/A 6.250 in

Nr. H

N/A 3

H Diameter

N/A 5/8 11 UNC

Dimension I

N/A 12.992 in

Dimension K

N/A 1.378 in

Dimension L

N/A 4.331 in

Dimension M

N/A 7-1/4 in

Dimension N

N/A 8.976 in

Q. D. Hub Size


Less Oil Weight

N/A 174 lb

Maximum Oil Volume

N/A 3.75 gal


N/A Wichita Clutch


N/A Dimension D

up to 2 inch: +0.001/-0.000
from 2 to 4 inch: +0.0015/-0.000

Dimension W

up to 0.500 inch: +0.002/-0.000
from 0.625 to 1 inch: +0.003/-0.000


N/A Maximum Bore
With Reduced Depth Keyway