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US Digital offers a wide variety of standard hub / disk assemblies (optical encoder disks attached to an aluminum hub) to aid with mounting on a shaft. Encoder disks may also be ordered as a stand alone item (see the Disks page). These rotary encoder disks are made from mylar polyester film. This material allows for a wide temperature range and is virtually unbreakable. ...
Hub ID |
Set Screw Size |
| 2mm | #4-48 |
| 3mm | #3-48 |
| 1/8" | #4-48 |
| 5/32" | #4-48 |
| 4mm | #4-48 |
| 3/16" | #4-48 |
| 5mm | #4-48 |
| 6mm | #4-48 |
| 1/4" | #4-48 |
| 5/16" | #4-48 |
| 8mm | #4-48 |
| 3/8" | #4-48 |
| 10mm | #4-48 |
US Digital offers a wide variety of standard hub / disk assemblies (optical encoder disks attached to an aluminum hub) to aid with mounting on a shaft. Encoder disks may also be ordered as a stand alone item (see the Disks page). These rotary encoder disks are made from mylar polyester film. This material allows for a wide temperature range and is virtually unbreakable.
HUBDISK-1 consists of a precision machined aluminum hub fastened to a 1" diameter optical encoder disk (DISK-1). A set screw is used to attach the hub to a shaft. The codewheel is available with bore sizes ranging from 2 mm to 10 mm. All hub bores are held to a very tight tolerance of -0.0000 to +0.0005 inches.
The disk on the assembly comes attached with the emulsion side up / right reading (see drawings provided).
The index option is not available on the following resolutions: 110, 120, 540 and 1016 CPR.
The following resolutions are only available with the index option: 32, 720, 900 and 1250 CPR.
Mechanical alignment drawings for optical encoder rotary disks and optical encoder modules are available (see the EM1 and HEDS pages).