{"product_id":"untitled-mar2_11-49","title":"Temper Speed Sense Wheel","description":"\u003cp data-path-to-node=\"1\"\u003eThe \u003cb data-path-to-node=\"1\" data-index-in-node=\"4\"\u003eTemper Speed Sense Wheel\u003c\/b\u003e is the mechanical component of the velocity-sensing assembly used in \u003cb data-path-to-node=\"1\" data-index-in-node=\"98\"\u003eMotion Control Engineering (MCE)\u003c\/b\u003e legacy traction systems. It is a precision-machined friction wheel that rides directly on the motor shaft or the main drive sheave to provide a mechanical-to-electrical speed reference for the \u003cb data-path-to-node=\"1\" data-index-in-node=\"324\"\u003eTemper Speed Sense (TSS)\u003c\/b\u003e board.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e\u003cb data-path-to-node=\"2\" data-index-in-node=\"0\"\u003eCore Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"3\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,0,0\"\u003e\u003cb data-path-to-node=\"3,0,0\" data-index-in-node=\"0\"\u003eManufacturer:\u003c\/b\u003e Motion Control Engineering (MCE) \/ Temper\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,1,0\"\u003e\u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"0\"\u003eMaterial:\u003c\/b\u003e Typically Aluminum or Steel core with a high-friction \u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"64\"\u003ePolyurethane\u003c\/b\u003e or \u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"80\"\u003eRubber\u003c\/b\u003e outer tire.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,2,0\"\u003e\u003cb data-path-to-node=\"3,2,0\" data-index-in-node=\"0\"\u003eMounting:\u003c\/b\u003e Mounted on a spring-loaded pivot arm to maintain constant pressure against the rotating equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,3,0\"\u003e\u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"0\"\u003eInterface:\u003c\/b\u003e Connected to an \u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"27\"\u003eEncoder\u003c\/b\u003e or \u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"38\"\u003eTachometer\u003c\/b\u003e (Pulse Generator) that sends signals to the speed sense board.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,4,0\"\u003e\u003cb data-path-to-node=\"3,4,0\" data-index-in-node=\"0\"\u003eDiameter:\u003c\/b\u003e Specifically sized (often 6\" or 12\" circumference) to allow for easy FPM (Feet Per Minute) calculations based on RPM.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"4\"\u003e\n\u003ch3 data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eElevator Logic\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003eVelocity Feedback:\u003c\/b\u003e As the elevator machine turns, the wheel rotates in 1:1 proportion (surface speed). This rotation is converted into electrical pulses.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eIndependent Speed Reference:\u003c\/b\u003e Because it is a \"follower wheel,\" it provides a speed reference independent of the drive’s internal logic, allowing the TSS board to detect if the drive has lost control or if the car is overspeeding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003eSlip Detection:\u003c\/b\u003e If the main drive sheave is turning but the Speed Sense Wheel is not (due to a mechanical jam or losing contact), the TSS board will detect a \"Zero Speed\" or \"Loss of Feedback\" fault and drop the safety string.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"7\"\u003e\n\u003ch3 data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eAccessories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eSpring-Loaded Pivot Arm:\u003c\/b\u003e Ensures the wheel stays in contact with the sheave even if there is slight run-out or vibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003ePulse Generator \/ Encoder:\u003c\/b\u003e The electronic sensor that the wheel is physically keyed to.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eReplacement Tires:\u003c\/b\u003e The rubber \"O-ring\" or polyurethane tire that can be replaced when the friction surface wears down.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"10\"\u003e\n\u003ch3 data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eMaintenance \u0026amp; Canadian Code Notes\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eFriction Surface Integrity:\u003c\/b\u003e Per \u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"32\"\u003eCSA B44\u003c\/b\u003e, safety-related speed monitoring must be reliable. If the rubber tire on the wheel becomes \"glazed,\" brittle, or flat-spotted, it will slip. This leads to inaccurate speed readings, which can cause the car to trip on \u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"257\"\u003eOverspeed\u003c\/b\u003e incorrectly or, worse, fail to trip during a real overspeed event.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003eAlignment:\u003c\/b\u003e The wheel must be perfectly parallel to the rotation of the sheave. If it is \"toeing\" in or out, it will wear prematurely and may bounce at high speeds, causing \"noisy\" data and intermittent safety trips.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003eCleaning:\u003c\/b\u003e Keep the wheel and the contact surface of the sheave free of oil and grease. In many machine rooms, cable lubricant (shield) can spray onto the sheave; if this gets on the Speed Sense Wheel, the car will lose its speed reference.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003eTension Adjustment:\u003c\/b\u003e Ensure the spring tension on the pivot arm is sufficient. If it is too loose, the wheel will skip during rapid acceleration or deceleration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"R.A.M. Parts","offers":[{"title":"Default Title","offer_id":48192763101336,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/4369\/5000\/files\/rn-image_picker_lib_temp_840a54fb-09ff-4ee8-8073-24a86af45c05.jpg?v=1772727548","url":"https:\/\/parts4rem.ca\/products\/untitled-mar2_11-49","provider":"Parts4REM","version":"1.0","type":"link"}