Description Specifications Accessories Description When using an AI-Tek speed sensor in RPM measurement, split gears provide a convenient and simple means of installation where shaft disassembly is not feasible. The two halves of the gear are fastened with clamping screws, thus assuring close fit. All split gears are 12 diametral pitch, 14.5° pressure angle. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications Pitch Diameter:15.000 in. Outer Diameter:15.166 in. Number of Teeth:180 Standard Bore Diameter:7.500 in. Maximum Bore Diameter:12.000 in. Literature & Docs Accessories AI-Tek Instruments 70082-1000-022 Passive Speed Sensor $156.00 Was: Now: $148.20 In Stock Add To Cart The item has been added AI-Tek Instruments 70085-1010-118 Passive Speed Sensor $280.00 Was: Now: $266.00 In Stock Add To Cart The item has been added AI-Tek Instruments 70085-1010-018 Passive Speed Sensor $197.00 Was: Now: $187.15 In Stock Add To Cart The item has been added AI-Tek Instruments 70082-1000-023 Passive Speed Sensor $124.00 Was: Now: $117.80 In Stock Add To Cart The item has been added AI-Tek Instruments 70082-1000-021 Passive Speed Sensor $124.00 Was: Now: $117.80 In Stock Add To Cart The item has been added AI-Tek Instruments 70085-1010-056 Passive Speed Sensor $192.00 Was: Now: $182.40 Add To Cart The item has been added AI-Tek Instruments 70082-1000-024 Passive Speed Sensor $156.00 Was: Now: $148.20 In Stock Add To Cart The item has been added AI-Tek Instruments 70085-1010-081 Passive Speed Sensor $408.00 Was: Now: $387.60 In Stock Add To Cart The item has been added AI-Tek Instruments 70085-1010-005 Passive Speed Sensor $408.00 Was: Now: $387.60 In Stock Add To Cart The item has been added AI-Tek Instruments 70085-1010-048 Passive Speed Sensor $192.00 Was: Now: $182.40 Add To Cart The item has been added