8.25" Single Groove A Section 4L Sheave - AK84H
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Masterdrive AK84H 8.25" Cast Iron A Section Pulley
Brand new single groove 8.25" cast iron pulley for an A section belt. This is a high quality pulley that measures 8.25" outside diameter and is designed to be used with an H style bushing.
The bushing (Not Included) inserts into the center of the pulley and slides over the shaft. As you tighten down the bolts on the H bushing it will tighten down on the shaft. This style of pulley is much more secure than a standard 1 piece pulley.
This pulley accepts A Section also known as 4L series belts. These belts are 1/2" wide.
Specifications
• Single Groove Pulley
• Accepts A Section / 4L Section Belts
• High Quality Cast Iron Construction
• Outside Diameter of Pulley: 8.25"
Manufacturer Resources
Dimensions and Measurements
| Outside diameter (O.D.) Overall diameter measured across the outer rim of the sheave. Use the pitch diameter, not this figure, for speed and ratio calculations. | 8.25" |
|---|---|
| Pitch diameter — 3L The effective diameter where a 3L belt rides in the groove. This is the figure to use for drive speed and ratio calculations. | 7.66" |
| Pitch diameter — 4L / A The effective diameter where a 4L or A section belt rides in the groove. This is the figure to use for drive speed and ratio calculations. | 8.0" |
| Face width (F) Overall width of the sheave measured across the rim. | 3/4" |
| Dimension L | 1-1/4" |
| Dimension P | 9/16" |
| Dimension X | 7/8" |
| Overall length (O.L.) Overall length of the sheave measured through the hub. | 1-1/2" |
| Weight Approximate weight from the manufacturer catalog. | 4.6 lb |
Belt and Operational Information
| Belt sections The V-belt cross sections this sheave is designed to accept. | 3L, 4L, A |
|---|---|
| Number of grooves How many belts the sheave can carry. | 1 |
| Maximum speed Maximum recommended rim speed in feet per minute. Running a sheave faster than this risks failure. | 6500 FPM |
Product Information
| Part number Masterdrive catalog number for this sheave, including the bore size. | AK84H |
|---|---|
| Sheave type Masterdrive construction designation for the sheave body, such as Type 3 with a solid web. | 3 lh (Type 3, lighting hole) |
| Construction Whether the sheave is bored to a finished size and keyed directly to the shaft, or requires a separate bushing to mount. | H-Bushing |
| Bushing The bushing style required to mount this sheave. "None (keyed)" means it mounts directly on the shaft. | H (powdered metal) |
| Material The material the sheave body is cast from. | Gray cast iron |

