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SR10 end-of-shaft slip ring, 10 circuits

SR Series end-of-shaft slip rings

Ten-circuit end-of-shaft slip ring with a 50.8 mm (2 in) rotor and a brush lifter, for low-level signals: strain gages, thermocouples, accelerometers and low voltages.

Circuits
Rotor diameter
Seals

Model SR10M

10
Circuits
12 000 rpm
Max speed
50.8 mm
Rotor diameter
42.7 mm · 184 g
Length · weight
  • Stator diameter34.93 mm
  • Operating temperature−40 to 121 °C
  • Contactscolor-coded solder terminals
  • SealsNone (sealed against dust)

Ten-circuit end-of-shaft slip ring with brush lifter, 50.8 mm rotor

The SR10M is an end-of-shaft slip ring with ten circuits rated at 500 mA. It mounts on the end of a rotating shaft and carries strain gages, thermocouples, accelerometers and low voltages from rotor to stator through precious metal rings and brushes, with a peak noise of 0.1 Ω. A manual brush lifter lifts the brushes off the rings while the slip ring keeps turning, reducing wear. Its stainless steel case is sealed against dust. Color-coded solder terminals sit on rotor and stator, and circular connectors are optional. With a 50.8 mm (2 in) rotor, it is 42.7 mm (1.68 in) long to the top of the brush lifter, weighs 184 g and runs up to 12 000 rpm, from −40 to 121 °C.

On installation, the rotor flange is mounted to the end of the shaft, through an adapter if needed, with three #8-32 screws 120° apart on a 43.2 mm (1.700 in) bolt circle. Sensor wires run along the shaft, or through a hollow shaft and a slot machined in it or in the adapter, to the rotor terminals. The bearings are lubricated for life; below −18 °C (0 °F), a low-temperature lubricant is specified.

It is used, for example, for thermocouples on crankshaft bearings on an engine dynamometer or on an air conditioning compressor; its rotor pilots onto AMP-TC modules that amplify the thermocouples on the rotating side.

SR Series, view 2

Specifications

SR10M
Circuits10
Rotation sensorNone
Embedded amplifierNone
Max peak contact noise≤ 100 mΩ
Current per circuit500 mA
MountingEnd of shaft
Max speed12 000 rpm
Rotor diameter50.8 mm
SealsNone (sealed against dust)
DimensionsØ 34.93 × 42.7 mm
Weight184 g
Operating temperature−40 to 121 °C
ConnectionsConnector · Solder terminals (rotor and stator: solder terminals; connector optional)
Shown: SR10M. Download the files

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Configuration

Color-coded terminals on the front face of the rotor flange.

Color-coded terminals on the end of the stator.

Options
Accessories
Your request

Shaft speed or angle from the same unit: see the SR/ERT Series.

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