Summary of Contents for NCTE S-BB-RT
- Page 1 BOTTOM BRACKET SENSORS FOR E-BIKES S-BB-RT S-BB-R S-BB-RP NCTE AG Raiffeisenallee 3, 82041 Oberhaching 28.01.2022 Revision 4.0...
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Page 2: Technical Data
Short description The bottom bracket sensors S-BB-R, S-BB-RP and S-BB-RT are bottom brackets with integrated sensor technology. The sensors are our long-standing and successful solution for detecting speed and direction of rotation. The S-BB-RT sensor can additionally measure the torque on the crankshaft. - Page 3 In this case, the bottom bracket can become permanently non-functional! Any changes to the product will void the warranty. With constant signal output during operation The configuration of the test setup for product release can be obtained from NCTE on request. In installed condition In installed condition...
- Page 4 68 mm /73 mm 28,20 136 K 136,00 68 mm /73 mm 38,20 136 L 136,00 Ltotal square - SW 12,73 mm Housing width For further information on other variants or dimensions, please contact our customer support: sales@ncte.de. NCTE Page 4 of 12...
- Page 5 Bottom bracket sensors for E-Bikes Signal output and connection diagram for S-BB-RT Signal Cable color Note Description Supply voltage +7 … 16 V DC White Black Chanel A 0 V / Open collector Blue 16 CPR Chanel B 0 V / Open collector...
- Page 6 Black Chanel A 0 V / Open collector Blue 16 CPR Chanel B 0 V / Open collector Brown 16 CPR No output No signal Grey Output for hall sensors: Open collector without pull-up resistor NCTE Page 6 of 12...
- Page 7 0 V / Open collector Blue 36 CPR Chanel B 0 V / Open collector Brown 36 CPR No output No signal Grey Output for hall sensors: Open collector with internal pull-up resistor 2.7 kOhm to +5 V. NCTE Page 7 of 12...
- Page 8 Bottom bracket sensors for E-Bikes Angle sensor Angle sensor with 32 (72 for S-BB-RP) pulses for precise determination of speed and direction of rotation. NCTE Page 8 of 12...
- Page 9 Bottom bracket sensors for E-Bikes Torque curve 0° 90° 180° 270° 360° Theoretical torque curve Torque Rotation in degree NCTE Page 9 of 12...
- Page 10 BSA threaded bottom bracket and a frame width of 68 mm or 73 mm. Crank arms must be mounted on the square shaft ends. The sensor S-BB-RT measures the torque applied by pedal and crankshaft at the left crank.
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Page 11: Handling And Transport
Reverse polarity or overvoltage on the connecting leads can damage the sensor. ▪ Routing the wires outside the bike frame can cause interference with the sensor. NCTE recommends routing the connection and data lines inside the frame. If internal routing is not possible for technical reasons, the irradiance sensitivity must be re-evaluated accordingly by the EPAC manufacturer. - Page 12 EC conformity The product meets the requirements of the European Union and has a corresponding CE certificate. For further information, please contact our customer support: sales@ncte.de Montage 1. The threads of the adapter shells and the frame must be clean before mounting.