Tachometer Transducers

aitek instrument tachometer transducer

AI-Tek tachometer transducers are self-generating units when used with speed sensors. They are designed primarily to provide an easy means of attaching a pulse generating assembly to rotating shafts. Sensor gapping, shaft run-out and mounting problems are eliminated. This makes the unit especially useful for shafts with high run-out. The ordering map on the following page provides information for selecting a unit for your particular application. Please note that sensors and cable assemblies must be ordered separately.

Taper Lock ® Type

The assembly consists of a Taper-Lock bushing which enables quick attachment to rotating shafts. The transducer employs a rotor with small perforations along its periphery; a permanently lubricated sealed bearing; an outer ring and a reference rod which, when clamped in position, prevents the outer ring assembly from moving. The outer ring can accommodate up to three speed sensors for use in monitoring directions of rotation and speed.

Sleeve Type

The AI-Tek sleeve-type transducer assembly is identical to the Taper-Lock type except that it provides a sleeve bushing with two set screws for installation purposes, allowing larger shaft sizes.


Part Number Pulses Per Revolution Bushing Type Bore Diameter (in) No. of 5/8-18 Holes
T79850-103-018430Sleeve1.3751
T79850-103-018660Taper Lock0.6251
T79850-103-020160Taper Lock11
T79850-103-021360Taper Lock0.751
T79850-103-021860Sleeve1.3751
T79850-103-022260Taper Lock0.51
T79850-103-022960Sleeve21
T79850-103-023630Taper Lock0.51
T79850-103-023930Sleeve1.9371
T79850-103-024130Taper Lock0.751
T79850-103-025930Taper Lock1.251
T79850-103-027660Sleeve1.751
T79850-103-028260Taper Lock1.251
T79850-103-029460Taper Lock1.1871
T79850-103-029560Taper Lock0.51
T79850-103-030130Sleeve1.51
T79850-103-030330Taper Lock14
T79850-103-030560Taper Lock0.754
T79850-103-121130Taper Lock0.51
T79850-103-121230Taper Lock0.6251
T79850-103-121330Taper Lock0.751
T79850-103-121430Taper Lock0.8751
T79850-103-121530Taper Lock11
T79850-103-121630Taper Lock1.1251
T79850-103-121730Taper Lock1.251
T79850-103-141830Sleeve1.3751
T79850-103-141930Sleeve1.51
T79850-103-142030Sleeve1.6251
T79850-103-142130Sleeve1.751
T79850-103-142230Sleeve1.8751
T79850-103-142330Sleeve21
T79850-103-221130Taper Lock0.52
T79850-103-221230Taper Lock0.6252
T79850-103-221330Taper Lock0.752
T79850-103-221430Taper Lock0.8752
T79850-103-221530Taper Lock12
T79850-103-221630Taper Lock1.1252
T79850-103-221730Taper Lock1.252
T79850-103-241830Sleeve1.3752
T79850-103-241930Sleeve1.52
T79850-103-242030Sleeve1.6252
T79850-103-242130Sleeve1.752
T79850-103-242230Sleeve1.8752
T79850-103-242330Sleeve22
T79850-103-421160Taper Lock0.51
T79850-103-421260Taper Lock0.6251
T79850-103-421360Taper Lock0.751
T79850-103-421460Taper Lock0.8751
T79850-103-421560Taper Lock11
T79850-103-421660Taper Lock1.1251
T79850-103-421760Taper Lock1.251
T79850-103-441860Sleeve1.3751
T79850-103-441960Sleeve1.51
T79850-103-442060Sleeve1.6251
T79850-103-442160Sleeve1.751
T79850-103-442260Sleeve1.8751
T79850-103-442360Sleeve21
T79850-103-521160Taper Lock0.52
T79850-103-521360Taper Lock0.752
T79850-103-521460Taper Lock0.8752
T79850-103-521560Taper Lock12
T79850-103-521660Taper Lock1.1252
T79850-103-521760Taper Lock1.252
T79850-103-541860Sleeve1.3752
T79850-103-541960Sleeve1.52
T79850-103-542060Sleeve1.6252
T79850-103-542160Sleeve1.752
T79850-103-542260Sleeve1.8752
T79850-103-542360Sleeve22
AI-Tek Tachometers & Speed Sensors

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