# Magnetic Encoder Disc for 20D mm Metal Gearmotors, OD 9.7 mm, ID 2.0 mm, 20 CPR (Bulk)

 Pololu item #: 3498 10 in stock Brand: Pololu Status: Active and Preferred Free shipping in USA over $60 Price break Unit price (US$)
5 0.69
50 0.49
500 0.34

 Quantity: (Order in multiples of 5) backorders allowed

These magnetic discs can be used with our 20D mm metal gearmotors (extended motor shaft versions only) as part of a quadrature encoder system that offers 20 counts per revolution. Appropriate Hall Effect sensors, such as those in our magnetic encoder pair kit for 20D mm gearmotors, are required to complete the system. These discs are bulk-packaged and must be ordered in multiples of five. We will package these to order, and quantities shown in stock are limited to 10 units. We generally expect orders of up to a few hundred units to ship within a day.

These are the same magnetic discs we include with our magnetic encoder pair kit for 20D mm gearmotors. They are 2 mm thick with a 9.7 mm diameter, and the hole through the center enables them to securely press-fit onto the 2mm-diameter motor shafts of our 20D mm metal gearmotors (extended motor shaft versions only). The disc consists of ten evenly spaced magnetic poles (five north-south pairs), which allows for an encoder system that offers 20 counts per revolution.

This bulk-packaged product is primarily intended for those wanting to integrate these encoder discs into their own systems in higher volumes, but the minimum quantity is set to five for those who want to just get a few as replacements or samples. We will package these to order, and quantities shown in stock will be limited to 10 units. We generally expect orders of up to a few hundred units to ship within a day. For larger orders, please contact us for lead time estimates.

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