Hexact Linear Actuation Method
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The HLA adjustable pulley can be used in place of the standard “HM” pulley
where an external mechanical control is available. Typical control methods
include hydraulic cylinder, air cylinder, and lever. The adapter nut located on
the end of the HLA pulley will accept a threaded rod or a clevis with cross
pins. The actuator linkage must be on the center line of the pulley, but radial
freedom is required to relieve loads caused by misalignment of the linkage.
Actuation rate (closing the moveable flange) should not exceed
2-1/2 inches per minute.
To specify the correct pulley, simply substitute the HLA prefix for the HM. For example, the Model HLA-7 pulley has the same drive characteristics as the Model HM-7 hand wheel-type pulley. Refer to the adjacent chart for dimensional information. A torque arm bracket is NOT required for the HLA drive.
Unit of Measure
Specifications
Description |
N/A HLA-3-7/8-PULLEY |
Model |
N/A HLA-3 |
Type |
N/A Adjustable Center - Driver |
Belt Size |
N/A 1922V |
Weight |
N/A 16.00 lb |
UPC Number |
N/A 42901 |
Dimensional Data
Bore Diameter |
N/A 7/8 in |
Outside Diameter (Dimension A) |
N/A 8.250 in |
Belt Top Width (Dimension B) |
N/A 1.180 in |
Dimension C |
N/A 0.630 in16 mm |
Distance at Min. PD (Dimension D) |
N/A 2.520 in |
Bore Depth (Dimension E) |
N/A 3.5 in |
Max. Opening Distance (Dimension F) |
N/A 8.370 in |
Min. Opening Distance (Dimension G) |
N/A 7.310 in |
Thru Hole (Dimension H) |
N/A 0.390 in |
Distance Across Flats (Dimension I) |
N/A 1.120 in |
Nut Diameter (Dimension J) |
N/A 1.180 in |
Max. Thrust (Dimension K) |
N/A 472.00 lb |
Diameter (Dimension L) |
N/A 3.000 in |
Thread (Dimension M) |
N/A 5/8-11 UNC |
Max. Depth (Dimension N) |
N/A 0.78 in Diameter x 1.12 in |
Flat Length (Dimension P) |
N/A 0.750 in |
Dimension R |
N/A 1.000 in25.40 mm |
Max. Depth (Dimension S) |
N/A 2.000 in |
Cubic inches |
N/A 569.68313 in³ |
