AI-Tek Instruments
FLW is the largest stocking distributor of AI-TEK Instruments (formerly Airpax Instruments) and provides a complete line of tachometers, speed indicators, variable reluctance speed sensors, magneto-resistive and hall effect sensors to measure rotary speed.

Mounting Brackets

aitek instrument mounting bracket accessories

Several types of brackets are available to facilitate the mounting of AI-Tek speed sensors. Threaded brackets for 3/8-24, 5/8-18 and 3/4-20 threads are generally used with passive sensors with one locknut. Active, zero- velocity sensors and passive, chisel-point sensors that require specific alignment should be used with unthreaded brackets and two locknuts.

Bracket material is non-magnetic, 303 stainless steel; locknuts are also non-magnetic stainless steel or plated brass.

Sensors and brackets should be attached to a frame free of excessive vibration to prevent spurious indications when the gear is stopped or turning at very slow speeds. Refer to sensor specifications for proper air gap and alignment with gear (target) rotation.

Part Number Type Thread Size
646-310-0006Threaded3/8-24 UNF-2B
646-310-0007Threaded5/8-18 UNF-2B
646-310-0008Threaded3/4-20 UNEF-2B
646-140-0009Unthreaded3/8-24 UNF-2A
646-140-0010Unthreaded5/8-18 UNF-2A
646-140-0015Unthreaded3/4-20 UNEF-2A
AI-Tek Tachometers & Speed Sensors

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We know speed and frequency. As AI-Tek's largest distributor with experienced product specialists, we can help answer your tough application questions.