Servotek Products

A-Series DC Tachometer - 1 to 10V Output

This low-cost, high-performance generator has 3 different shaft styles and diameters available for direct drives. It also has 3 different mounting options. Various voltage output options are also available as well as a choice of Tolerance and Ripple.

Features Include:

• Class H Insulation
• No phase shift
• Low driving torque
• Low ripple
• Bi-directional operation

B Series DC Tachometer - 11 to 24V Output

This high-performance generator has 3 different shaft styles and diameters available for direct drives. It also has 3 different mounting options. Various voltage output options are also available as well as a choice of Tolerance and Ripple.

Features Include

• Class H Insulation
• No phase shift
• Low driving torque
• Low ripple
• Bi-directional operation

D Series DC Tachometer - 25 to 50V Output

Rugged construction and high output voltages make the D series tachometer ideally suited for industrial applications. The output bearing is fitted with a seal to prevent contamination. Various voltage options are available as well as a choice of Tolerance and Ripple.

Features include:

• Class H Insulation
• No phase shift
• Low driving torque
• Low ripple
• Bi-directional operation

E Series DC Tachometer - 3V Output

The E tachometer is a subminiature tach and is the smallest in the series for ServoTek tachometers. Very suitable for all types servo systems providing 0.25 oz/in driving torque.

Features include:

• Class H Insulation
• No phase shift
• Low driving torque
• Low ripple
• Bi-directional operation

Silicone Rubber Coupling

This rubber coupling provides sufficient flexibility to absorb minor misalignment. For customer convenience, ServoTek offers 2 silicone rubber coupling options, available for immediate order. To find the best coupling for your requirements, simply determine the proper shaft diameter that matches the tachometer shaft that it will be used on.

Rubber Boot

This rubber boot provides sufficient flexibility to absorb minor misalignment and provide a protective cover for the tachometer.

Shaft Coupling

Aluminum silicone rubber shaft couplings provide sufficient flexibility to absorb minor misalignment.

PM Encoder

Ideal for motor speed control and position control through a single channel square wave output. Screw mount design has a 1-32 threaded shaft. Special mounting hardware is not required for this unit. Face mount also available with 3 tapped holes and a syncro groove.

Features Include:

• Rotary shaft design with 10-32 thread
• Operating temperatures up to 80°C, Low as -40°C
• Maximum speed of 12,000 rpm
• Mounting shaft accommodates up to 0.186” round

PT Encoder

Ideal for OEM and motor manufacturers. Provides a low cost solution to digital feedback requirements. Hollow shaft design and incorporates the hub and housing into one assembly. Provides a single or dual channel digital signal.

Features Include:

• Small size with standard mounting hole centers
• Operating temperatures up to 80 C
• Maximum speed of 20,000 rpm
• Hub bore accommodates mounting shaft up to 0.251”

Tachsyn 4000 Series - 4 pole

This is a unique type of transducer that can be used as either a brushless DC tachometer and/or as a brushless DC motor commutator. The Tachsyn transducer is a magnetic sensing device in which the output windings, field winding, permanent magnet are all located in the stator, thus maximizing reliability. The very-low-inertia rotor has no windings, but is, instead, contoured with high-reluctance and low-reluctance poles.