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SR45A-AXHS end-of-shaft slip ring, 45 circuits

SR45A-AXHS and SR60A-AXHS end-of-shaft slip rings

Forty-five-circuit end-of-shaft slip ring with circular connectors on rotor and stator, for low-level signals: strain gages, thermocouples, accelerometers and low voltages.

Main versions

45
Circuits
4 000 rpm
Max speed
250 mA
Current per circuit
181.61 mm · 794 g
Length · weight
  • Stator diameter36.58 mm
  • Length181.61 mm
  • Operating temperature−40 to 121 °C
  • Connectionscircular connectors

SR45A-AXHS: forty-five-circuit end-of-shaft slip ring

The SR45A-AXHS is an end-of-shaft slip ring with 45 circuits rated at 250 mA. It mounts on the end of a rotating shaft and carries strain gages, thermocouples, accelerometers and low voltages from rotor to stator. Its rings and brushes are wrought precious metals, with no plating, which minimizes electrical noise; the peak resistance variation is 0.1 Ω. Its stainless steel case is sealed against dust, and circular connectors on rotor and stator carry the circuits. With a 63.49 mm (2.5 in) rotor flange, it is 181.61 mm long, weighs 794 g and runs up to 4 000 rpm, from −40 to 121 °C.

The rotor flange is bolted to the end of the shaft on a 57.15 mm (2.25 in) bolt circle. The sensor wires are brought to the rotor connectors and the data acquisition wires to the stator connectors; the connectors are inserted and secured with a clamping plate. The bearings are permanently lubricated, which eliminates routine cleaning and maintenance.

It is used where many circuits are needed on one shaft, for example to measure strain and temperature on fan and turbine blades, or strain on the blades and in the gearbox of a wind turbine.

SR45A-AXHS end-of-shaft slip ring, 45 circuits

Specifications

SR45A-AXHS
Circuits45
Rotation sensorNone
Embedded amplifierNone
Max peak contact noise≤ 100 mΩ
Current per circuit250 mA
MountingEnd of shaft
Max speed4 000 rpm
Rotor diameter63.49 mm
DimensionsØ 36.58 × 181.61 mm
Weight794 g
Operating temperature−40 to 121 °C
ConnectionsConnector (rotor and stator: circular connectors)

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