SR-A/ERT end-of-shaft slip rings, 63.5 mm rotor, optional encoder 10 to 36 circuits

SR10A/AX: ten-circuit end-of-shaft slip ring, 63.5 mm rotor

This end-of-shaft slip ring has ten gold alloy rings rated at 0.5 A, which carry strain gages, thermocouples, accelerometers and low voltages with a peak resistance variation of 0.1 Ω. Its stainless steel rotor has a 63.5 mm (2.5 in) flange with a circular connector, and its anodized aluminum stator a radial circular connector. It runs up to 10 000 rpm, from −40 to 85 °C.

On installation, the rotor flange is screwed to the end of the shaft with 8-32 screws on a 57.15 mm (2.250 in) circle. A rotation restraint is attached to the threaded holes of the stator.

SR10A/E512/AX: ten-circuit end-of-shaft slip ring and encoder, 63.5 mm rotor

This end-of-shaft slip ring has ten gold alloy rings rated at 0.5 A, which carry strain gages, thermocouples, accelerometers and low voltages with a peak resistance variation of 0.1 Ω. Its optical encoder, of 256, 360, 500 or 512 pulses per revolution according to the model, measures speed, angle and direction of rotation without using any ring. Its stainless steel rotor has a 63.5 mm (2.5 in) flange, and its anodized aluminum stator a radial Bendix PT02E-14-19P connector. It is 80 mm long, weighs 397 g and runs up to 10 000 rpm, from −40 to 85 °C.

On installation, the rotor flange is screwed to the end of the shaft with 8-32 screws on a 57.15 mm (2.250 in) circle. A rotation restraint is attached to the threaded holes of the stator. The encoder runs on 5 to 20 V DC, 100 mA, and gives A and B quadrature, index and A⊕B pulses of 0 to 5 V, with a maximum cumulative error of 0.25°. As an option, built-in electronics add either tachometer outputs (T), a velocity voltage up to ±10 V and a position voltage up to +10 V, on 8 to 18 V DC, or, with the 360 ppr encoder, resolver outputs (R), sine and cosine up to ±10 V.

It is used, for example, on a gaged accessory belt pulley, where speed, angle and direction of rotation are recorded with the torque, or on a running engine’s crankshaft.

SR20A/AX: 20-circuit end-of-shaft slip ring, 63.5 mm rotor

This end-of-shaft slip ring has 20 gold alloy rings rated at 0.5 A, which carry strain gages, thermocouples, accelerometers and low voltages with a peak resistance variation of 0.1 Ω. Its stainless steel rotor has a 63.5 mm (2.5 in) flange with a circular connector, and its anodized aluminum stator a radial circular connector. It runs up to 4 000 rpm, from −40 to 85 °C.

On installation, the rotor flange is screwed to the end of the shaft with 8-32 screws on a 57.15 mm (2.250 in) circle. A rotation restraint is attached to the threaded holes of the stator.

SR20A/E512/AX: 20-circuit end-of-shaft slip ring and encoder, 63.5 mm rotor

This end-of-shaft slip ring has 20 gold alloy rings rated at 0.5 A, which carry strain gages, thermocouples, accelerometers and low voltages with a peak resistance variation of 0.1 Ω. Its optical encoder, of 256, 360, 500 or 512 pulses per revolution according to the model, measures speed, angle and direction of rotation without using any ring. Its stainless steel rotor has a 63.5 mm (2.5 in) flange, and its anodized aluminum stator a radial Bendix PT02E-16-26P connector. It is 93 mm long, weighs 425 g and runs up to 4 000 rpm, from −40 to 85 °C.

On installation, the rotor flange is screwed to the end of the shaft with 8-32 screws on a 57.15 mm (2.250 in) circle. A rotation restraint is attached to the threaded holes of the stator. The encoder runs on 5 to 20 V DC, 100 mA, and gives A and B quadrature, index and A⊕B pulses of 0 to 5 V, with a maximum cumulative error of 0.25°. As an option, built-in electronics add either tachometer outputs (T), a velocity voltage up to ±10 V and a position voltage up to +10 V, on 8 to 18 V DC, or, with the 360 ppr encoder, resolver outputs (R), sine and cosine up to ±10 V.

It is used, for example, on a running engine’s crankshaft, for torque, bending and fillet strain, with crank speed and position from the encoder.

SR36A/AX: 36-circuit end-of-shaft slip ring, 63.5 mm rotor

This end-of-shaft slip ring has 36 gold alloy rings rated at 0.5 A, which carry strain gages, thermocouples, accelerometers and low voltages with a peak resistance variation of 0.1 Ω. Its stainless steel rotor has a 63.5 mm (2.5 in) flange with a circular connector, and its anodized aluminum stator a radial circular connector. It runs up to 2 400 rpm, from −40 to 85 °C.

On installation, the rotor flange is screwed to the end of the shaft with 8-32 screws on a 57.15 mm (2.250 in) circle. A rotation restraint is attached to the threaded holes of the stator.

SR36A/E512/AX: 36-circuit end-of-shaft slip ring and encoder, 63.5 mm rotor

This end-of-shaft slip ring has 36 gold alloy rings rated at 0.5 A, which carry strain gages, thermocouples, accelerometers and low voltages with a peak resistance variation of 0.1 Ω. Its optical encoder, of 256, 360, 500 or 512 pulses per revolution according to the model, measures speed, angle and direction of rotation without using any ring. Its stainless steel rotor has a 63.5 mm (2.5 in) flange, and its anodized aluminum stator a radial Bendix JT02RE-16-35P connector. It is 115 mm long, weighs 482 g and runs up to 2 400 rpm, from −40 to 85 °C.

On installation, the rotor flange is screwed to the end of the shaft with 8-32 screws on a 57.15 mm (2.250 in) circle. A rotation restraint is attached to the threaded holes of the stator. The encoder runs on 5 to 20 V DC, 100 mA, and gives A and B quadrature, index and A⊕B pulses of 0 to 5 V, with a maximum cumulative error of 0.25°. As an option, built-in electronics add either tachometer outputs (T), a velocity voltage up to ±10 V and a position voltage up to +10 V, on 8 to 18 V DC, or, with the 360 ppr encoder, resolver outputs (R), sine and cosine up to ±10 V.

It is used, for example, on a running engine’s crankshaft, for torque near the main bearing, bending and strain in the fillets of the throws, with crank speed and position.