Encoder Setup Guide: Torque Specs and Shaft Requirements for HEDL-5540#A11

If you’re looking for details such as the recommended tightening torque for an L-type wrench and the recommended bearing design for the HEDL-5540#A11 Rotary Encoder from Broadcom Ltd,
please find below the information provided by the manufacturer.

  • The HEDL-5540#A11 is designed to fit a 4mm diameter shaft. The shaft length is recommended to be 14mm +/-0.5mm for proper insertion into the encoder.

  • The recommended torque to tighten the setscrew is 15-18 ozf.inch as indicated on step 3b.

  • Check the attached HEDx-5xxx encoder datasheet. Assembly instructions are similar to this encoder and can be found on page 9.

  • Regarding bearing style choice, this is up to the customer and should be selected depending on what is best for the application. The codewheel for the encoder will be fitted to the shaft via a set screw that is tightened using a hex wrench.
    Any rotational movement of the shaft will result in triggering position feedback by the encoder. Therefore, the customer will need to determine what torque rating is appropriate for their bearing design, free rotating or not.

av02-1046en_ds_hedm-55xx_2014-11-20.pdf (461.9 KB)

Applicable Part Numbers
DigiKey Part Number Manufacturer Part Number
516-2399-ND HEDL-5540#A11
516-2750-ND HEDL-5540#A06
516-3021-ND HEDL-5640#A13
516-3019-ND HEDL-5540#A12
516-3018-ND HEDL-5540#A02
516-3637-ND HEDL-5540#A13
516-4247-ND HEDL-5640#A06
516-3020-ND HEDL-5605#A06
516-3506-ND HEDL-5540#A14
2832-HEDL-5600#H06-ND,516-4246-ND HEDL-5600#H06
516-3638-ND HEDL-5600#A06
HEDL-9040#B00-ND HEDL-9040#B00
HEDL-9100#A00-ND HEDL-9100#A00
HEDL-9140#A00-ND HEDL-9140#A00
HEDL-9140#I00-ND HEDL-9140#I00
HEDL-5500#A02-ND HEDL-5500#A02
516-4244-ND HEDL-5500#E06
HEDL-5500#G05-ND HEDL-5500#G05
HEDL-5500#I04-ND HEDL-5500#I04
HEDL-5505#I13-ND HEDL-5505#I13
HEDL-5540#A01-ND HEDL-5540#A01
HEDL-5540#A05-ND HEDL-5540#A05
HEDL-5540#C02-ND HEDL-5540#C02
HEDL-5540#C12-ND HEDL-5540#C12
HEDL-5540#E06-ND HEDL-5540#E06
HEDL-5540#E11-ND HEDL-5540#E11
HEDL-5540#I01-ND HEDL-5540#I01
HEDL-5540#I06-ND HEDL-5540#I06
HEDL-5540#I11-ND HEDL-5540#I11
HEDL-5560-B14-ND HEDL-5560-B14
HEDL-5560#B02-ND HEDL-5560#B02
HEDL-5560#B11-ND HEDL-5560#B11
HEDL-5560#B13-ND HEDL-5560#B13
HEDL-5605-H06-ND HEDL-5605-H06
HEDL-5640#A12-ND HEDL-5640#A12
HEDL-5645#A13-ND HEDL-5645#A13
516-4248-ND HEDL-5645#G06
516-4245-ND HEDL-5561#J06
HEDL-5645#A06-ND HEDL-5645#A06
HEDL-5500#A06-ND HEDL-5500#A06
HEDL-5500#G12-ND HEDL-5500#G12
HEDL-5505#A06-ND HEDL-5505#A06
HEDL-6540#B11-ND HEDL-6540#B11
HEDL-6545#B09-ND HEDL-6545#B09
516-4249-ND HEDL-9000#U00
HEDL-9140-H00-ND HEDL-9140-H00