SR-M end-of-shaft slip rings, 50.8 mm rotor
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.
Twenty-circuit end-of-shaft slip ring with a 50.8 mm (2 in) rotor, for low-level signals: strain gages, thermocouples, accelerometers and low voltages.
36-circuit end-of-shaft slip ring with a 50.8 mm (2 in) rotor, for low-level signals: strain gages, thermocouples, accelerometers and low voltages.
High speed version of the SR10M ten-circuit end-of-shaft slip ring, 50.8 mm (2 in) rotor.
Twenty-circuit end-of-shaft slip ring with a 50.8 mm (2 in) rotor and specialized rings.
Four-circuit end-of-shaft slip ring with a 60 ppr speed encoder and a 50.8 mm (2 in) rotor, for low-level signals: strain gages, thermocouples, accelerometers and low voltages.
Six-circuit end-of-shaft slip ring with a 60 ppr speed encoder and a 50.8 mm (2 in) rotor, for low-level signals: strain gages, thermocouples, accelerometers and low voltages.
Eight-circuit end-of-shaft slip ring with a 60 ppr speed encoder and a 50.8 mm (2 in) rotor, for low-level signals: strain gages, thermocouples, accelerometers and low voltages.
Ten-circuit end-of-shaft slip ring with a 60 ppr speed encoder and a 50.8 mm (2 in) rotor, for low-level signals: strain gages, thermocouples, accelerometers and low voltages.
A special version of the SR-M. A high speed version of the SR10M, 10 circuits (SR10M/15K92).
A special version of the SR-M. An SR20M with specialized rings, 20 circuits (SR20M/GEV).
- 10
- Circuits
- 12 000 rpm
- Max speed
- 50.8 mm
- Rotor diameter
- 42.7 mm · 184 g
- Length · weight
- 20
- Circuits
- 4 000 rpm
- Max speed
- 50.8 mm
- Rotor diameter
- 56.6 mm · 204 g
- Length · weight
- 36
- Circuits
- 2 400 rpm
- Max speed
- 50.8 mm
- Rotor diameter
- 89.2 mm · 255 g
- Length · weight
- 10
- Circuits
- 50.8 mm
- Rotor diameter
- High speed
- Version
- 20
- Circuits
- 50.8 mm
- Rotor diameter
- Specialized rings
- Version
- 4
- Circuits
- 60 ppr
- Encoder
- 50.8 mm
- Rotor diameter
- 6 000 rpm
- Max speed
- 57.9 mm · 213 g
- Length · weight
- 6
- Circuits
- 60 ppr
- Encoder
- 50.8 mm
- Rotor diameter
- 6 000 rpm
- Max speed
- 57.9 mm · 213 g
- Length · weight
- 8
- Circuits
- 60 ppr
- Encoder
- 50.8 mm
- Rotor diameter
- 6 000 rpm
- Max speed
- 57.9 mm · 213 g
- Length · weight
- 10
- Circuits
- 60 ppr
- Encoder
- 50.8 mm
- Rotor diameter
- 6 000 rpm
- Max speed
- 57.9 mm · 213 g
- Length · weight
- Stator diameter34.93 mm
- Operating temperature−40 to 121 °C
- Contactscolor-coded solder terminals
- SealsNone (sealed against dust)
- Stator diameter34.93 mm
- Operating temperature−40 to 121 °C
- Contactscolor-coded solder terminals
- SealsNone (sealed against dust)
- Stator diameter36.58 mm
- Operating temperature−40 to 121 °C
- Contactscolor-coded solder terminals
- SealsNone (sealed against dust)
- Operating temperature−40 to 121 °C
- Contactscolor-coded solder terminals
- SealsNone (sealed against dust)
- Operating temperature−40 to 121 °C
- Contactscolor-coded solder terminals
- SealsNone (sealed against dust)
- Stator diameter34.93 mm
- Operating temperature−40 to 100 °C
- Contactscolor-coded solder terminals
- SealsNone (sealed against dust)
- Stator diameter34.93 mm
- Operating temperature−40 to 100 °C
- Contactscolor-coded solder terminals
- SealsNone (sealed against dust)
- Stator diameter34.93 mm
- Operating temperature−40 to 100 °C
- Contactscolor-coded solder terminals
- SealsNone (sealed against dust)
- Stator diameter34.93 mm
- Operating temperature−40 to 100 °C
- Contactscolor-coded solder terminals
- SealsNone (sealed against dust)
SR10M: 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.
SR20M: twenty-circuit end-of-shaft slip ring, 50.8 mm rotor
The SR20M is an end-of-shaft slip ring with twenty 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. 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 56.6 mm (2.23 in) long, weighs 204 g and runs up to 4 000 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.
SR36M: 36-circuit end-of-shaft slip ring, 50.8 mm rotor
The SR36M is an end-of-shaft slip ring with 36 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 through precious metal rings and brushes, with a peak noise of 0.1 Ω. 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 89.2 mm (3.51 in) long, weighs 255 g and runs up to 2 400 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.
In a validation test, an SR36M spinning at 900 rpm carried a Gigabit Ethernet link, a file passing at 111 MB/s with no error; it is also used for thermocouples on crankshaft bearings on an engine dynamometer or on an air conditioning compressor.
SR10M/15K92: ten circuits, high speed version
The SR10M/15K92 is a high speed version of the SR10M, the ten-circuit SR Series end-of-shaft slip ring with a 50.8 mm (2 in) rotor. Like the SR10M, it carries strain gages, thermocouples and other sensors from rotor to stator through ten circuits rated at 500 mA, precious metal rings and brushes, in a stainless steel case sealed against dust.
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. The SR10M datasheet rates the standard model to 12 000 rpm; ask us for the rating of the high speed version.
For the standard model, see the SR10M on this page.
SR20M/GEV: twenty circuits, specialized rings
The SR20M/GEV is a version of the SR20M, the twenty-circuit SR Series end-of-shaft slip ring with a 50.8 mm (2 in) rotor, built with specialized rings. Like the SR20M, it carries twenty circuits rated at 500 mA in a stainless steel case sealed against dust.
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. The SR20M datasheet rates the standard model to 4 000 rpm, from −40 to 121 °C; ask us what the specialized rings change.
For the standard model, see the SR20M on this page.
SR4M/E60: four-circuit end-of-shaft slip ring with 60 ppr encoder, 50.8 mm rotor
The SR4M/E60 is an end-of-shaft slip ring with four circuits rated at 500 mA and a 60 pulse-per-revolution encoder. It mounts on the end of a rotating shaft and carries strain gages, thermocouples, accelerometers and low voltages from rotor to stator, while the encoder measures rotational speed. Its rings and brushes are precious metal, and its terminals color-coded. The housing is sealed against dust, and a manual brush lifter lifts the brushes off the rings when no signal is needed. With a 50.8 mm (2 in) rotor, it is 57.9 mm long, weighs 213 g and runs up to 6 000 rpm, from −40 to 100 °C.
On installation, the rotor flange is screwed to the end of the shaft with three 8-32 screws on a 43.18 mm (1.700 in) circle. The encoder is powered with 5 to 15 V DC. The bearings are lubricated for life, and a low-temperature lubricant is specified below −18 °C. A rubber boot or a metal cap adds a cable or connector to the stator terminals, and a circular connector can replace the rotor terminals.
It is used where a slip ring and a speed encoder are both needed on the end of a shaft; with Michigan Scientific frequency-to-voltage encoder electronics, its pulses also give an analog speed signal for recorders that cannot read a pulse train.
SR6M/E60: six-circuit end-of-shaft slip ring with 60 ppr encoder, 50.8 mm rotor
The SR6M/E60 is an end-of-shaft slip ring with six circuits rated at 500 mA and a 60 pulse-per-revolution encoder. It mounts on the end of a rotating shaft and carries strain gages, thermocouples, accelerometers and low voltages from rotor to stator, while the encoder measures rotational speed. Its rings and brushes are precious metal, and its terminals color-coded. The housing is sealed against dust, and a manual brush lifter lifts the brushes off the rings when no signal is needed. With a 50.8 mm (2 in) rotor, it is 57.9 mm long, weighs 213 g and runs up to 6 000 rpm, from −40 to 100 °C.
On installation, the rotor flange is screwed to the end of the shaft with three 8-32 screws on a 43.18 mm (1.700 in) circle. The encoder is powered with 5 to 15 V DC. The bearings are lubricated for life, and a low-temperature lubricant is specified below −18 °C. A rubber boot or a metal cap adds a cable or connector to the stator terminals, and a circular connector can replace the rotor terminals.
It is used where a slip ring and a speed encoder are both needed on the end of a shaft; with Michigan Scientific frequency-to-voltage encoder electronics, its pulses also give an analog speed signal for recorders that cannot read a pulse train.
SR8M/E60: eight-circuit end-of-shaft slip ring with 60 ppr encoder, 50.8 mm rotor
The SR8M/E60 is an end-of-shaft slip ring with eight circuits rated at 500 mA and a 60 pulse-per-revolution encoder. It mounts on the end of a rotating shaft and carries strain gages, thermocouples, accelerometers and low voltages from rotor to stator, while the encoder measures rotational speed. Its rings and brushes are precious metal, and its terminals color-coded. The housing is sealed against dust, and a manual brush lifter lifts the brushes off the rings when no signal is needed. With a 50.8 mm (2 in) rotor, it is 57.9 mm long, weighs 213 g and runs up to 6 000 rpm, from −40 to 100 °C.
On installation, the rotor flange is screwed to the end of the shaft with three 8-32 screws on a 43.18 mm (1.700 in) circle. The encoder is powered with 5 to 15 V DC. The bearings are lubricated for life, and a low-temperature lubricant is specified below −18 °C. A rubber boot or a metal cap adds a cable or connector to the stator terminals, and a circular connector can replace the rotor terminals.
It is used where a slip ring and a speed encoder are both needed on the end of a shaft; with Michigan Scientific frequency-to-voltage encoder electronics, its pulses also give an analog speed signal for recorders that cannot read a pulse train.
SR10M/E60: ten-circuit end-of-shaft slip ring with 60 ppr encoder, 50.8 mm rotor
The SR10M/E60 is an end-of-shaft slip ring with ten circuits rated at 500 mA and a 60 pulse-per-revolution encoder. It mounts on the end of a rotating shaft and carries strain gages, thermocouples, accelerometers and low voltages from rotor to stator, while the encoder measures rotational speed. Its rings and brushes are precious metal, and its terminals color-coded. The housing is sealed against dust, and a manual brush lifter lifts the brushes off the rings when no signal is needed. With a 50.8 mm (2 in) rotor, it is 57.9 mm long, weighs 213 g and runs up to 6 000 rpm, from −40 to 100 °C.
On installation, the rotor flange is screwed to the end of the shaft with three 8-32 screws on a 43.18 mm (1.700 in) circle. The encoder is powered with 5 to 15 V DC. The bearings are lubricated for life, and a low-temperature lubricant is specified below −18 °C. A rubber boot or a metal cap adds a cable or connector to the stator terminals, and a circular connector can replace the rotor terminals.
It is used where a slip ring and a speed encoder are both needed on the end of a shaft; with Michigan Scientific frequency-to-voltage encoder electronics, its pulses also give an analog speed signal for recorders that cannot read a pulse train.
Specifications
| Circuits | 10 |
|---|---|
| Rotation sensor | None |
| Embedded amplifier | None |
| Max peak contact noise | ≤ 100 mΩ |
| Current per circuit | 500 mA |
| Mounting | End of shaft |
| Max speed | 12 000 rpm |
| Rotor diameter | 50.8 mm |
| Seals | None (sealed against dust) |
| Dimensions | Ø 34.93 × 42.7 mm |
| Weight | 184 g |
| Operating temperature | −40 to 121 °C |
| Connections | Connector · Solder terminals (rotor and stator: solder terminals; connector optional) |
| Circuits | 20 |
|---|---|
| Rotation sensor | None |
| Embedded amplifier | None |
| Max peak contact noise | ≤ 100 mΩ |
| Current per circuit | 500 mA |
| Mounting | End of shaft |
| Max speed | 4 000 rpm |
| Rotor diameter | 50.8 mm |
| Seals | None (sealed against dust) |
| Dimensions | Ø 34.93 × 56.6 mm |
| Weight | 204 g |
| Operating temperature | −40 to 121 °C |
| Connections | Solder terminals (rotor and stator: solder terminals; connector optional) |
| Circuits | 36 |
|---|---|
| Rotation sensor | None |
| Embedded amplifier | None |
| Max peak contact noise | ≤ 100 mΩ |
| Current per circuit | 250 mA |
| Mounting | End of shaft |
| Max speed | 2 400 rpm |
| Rotor diameter | 50.8 mm |
| Seals | None (sealed against dust) |
| Dimensions | Ø 36.58 × 89.2 mm |
| Weight | 255 g |
| Operating temperature | −40 to 121 °C |
| Connections | Connector · Solder terminals (rotor and stator: solder terminals; connector optional) |
| Circuits | 10 |
|---|---|
| Rotation sensor | None |
| Embedded amplifier | None |
| Max peak contact noise | ≤ 100 mΩ |
| Current per circuit | 500 mA |
| Mounting | End of shaft |
| Max speed | 12 000 rpm |
| Rotor diameter | 50.8 mm |
| Seals | None (sealed against dust) |
| Operating temperature | −40 to 121 °C |
| Connections | Connector · Solder terminals (rotor and stator: solder terminals; connector optional) |
| Circuits | 20 |
|---|---|
| Rotation sensor | None |
| Embedded amplifier | None |
| Max peak contact noise | ≤ 100 mΩ |
| Current per circuit | 500 mA |
| Mounting | End of shaft |
| Max speed | 12 000 rpm |
| Rotor diameter | 50.8 mm |
| Seals | None (sealed against dust) |
| Operating temperature | −40 to 121 °C |
| Connections | Connector · Solder terminals (rotor and stator: solder terminals; connector optional) |
| Angle accuracy | ≤ 0.5° (location accuracy) |
|---|---|
| Circuits | 4 |
| Rotation sensor | Encoder |
| Encoder resolution | 60 ppr |
| Embedded amplifier | None |
| Max peak contact noise | ≤ 100 mΩ |
| Encoder signals | A (single channel, 60 pulses per revolution) |
| Current per circuit | 500 mA |
| Supply voltage | 5 to 15 V (encoder) |
| Supply current | 36 mA (encoder) |
| Mounting | End of shaft |
| Max speed | 6 000 rpm |
| Rotor diameter | 50.8 mm |
| Seals | None (sealed against dust) |
| Dimensions | Ø 34.93 × 57.9 mm |
| Weight | 213 g |
| Operating temperature | −40 to 100 °C |
| Connections | Connector · Solder terminals (rotor: solder terminals; connector optional · stator: solder terminals) |
| Angle accuracy | ≤ 0.5° (location accuracy) |
|---|---|
| Circuits | 6 |
| Rotation sensor | Encoder |
| Encoder resolution | 60 ppr |
| Embedded amplifier | None |
| Max peak contact noise | ≤ 100 mΩ |
| Encoder signals | A (single channel, 60 pulses per revolution) |
| Current per circuit | 500 mA |
| Supply voltage | 5 to 15 V (encoder) |
| Supply current | 36 mA (encoder) |
| Mounting | End of shaft |
| Max speed | 6 000 rpm |
| Rotor diameter | 50.8 mm |
| Seals | None (sealed against dust) |
| Dimensions | Ø 34.93 × 57.9 mm |
| Weight | 213 g |
| Operating temperature | −40 to 100 °C |
| Connections | Connector · Solder terminals (rotor: solder terminals; connector optional · stator: solder terminals) |
| Angle accuracy | ≤ 0.5° (location accuracy) |
|---|---|
| Circuits | 8 |
| Rotation sensor | Encoder |
| Encoder resolution | 60 ppr |
| Embedded amplifier | None |
| Max peak contact noise | ≤ 100 mΩ |
| Encoder signals | A (single channel, 60 pulses per revolution) |
| Current per circuit | 500 mA |
| Supply voltage | 5 to 15 V (encoder) |
| Supply current | 36 mA (encoder) |
| Mounting | End of shaft |
| Max speed | 6 000 rpm |
| Rotor diameter | 50.8 mm |
| Seals | None (sealed against dust) |
| Dimensions | Ø 34.93 × 57.9 mm |
| Weight | 213 g |
| Operating temperature | −40 to 100 °C |
| Connections | Connector · Solder terminals (rotor: solder terminals; connector optional · stator: solder terminals) |
| Angle accuracy | ≤ 0.5° (location accuracy) |
|---|---|
| Circuits | 10 |
| Rotation sensor | Encoder |
| Encoder resolution | 60 ppr |
| Embedded amplifier | None |
| Max peak contact noise | ≤ 100 mΩ |
| Encoder signals | A (single channel, 60 pulses per revolution) |
| Current per circuit | 500 mA |
| Supply voltage | 5 to 15 V (encoder) |
| Supply current | 36 mA (encoder) |
| Mounting | End of shaft |
| Max speed | 6 000 rpm |
| Rotor diameter | 50.8 mm |
| Seals | None (sealed against dust) |
| Dimensions | Ø 34.93 × 57.9 mm |
| Weight | 213 g |
| Operating temperature | −40 to 100 °C |
| Connections | Connector · Solder terminals (rotor: solder terminals; connector optional · stator: solder terminals) |
Used with the SR-M
What you add here goes into the same quote request.
-
Amplify strain gage bridges on the shaft
AMP-SG-U2
Modules for one, two or three bridges, stacked on the rotor, with a ± 10 V output.
On the 50.8 mm rotor of the M and MW versions.
-
Amplify thermocouples on the shaft
AMP-TCN-X2
One to nine cold junction compensated channels in one module, 10 mV/°C output.
On the 50.8 mm rotor of the M and MW versions.
Resources
Datasheets and manuals
CAD models
Datasheets and manuals
Drawings
CAD models
Datasheets and manuals
Drawings
CAD models
Datasheets and manuals
CAD models
Datasheets and manuals
Drawings
CAD models
Datasheets and manuals
None for SR4M/E60.
Drawings
None for SR4M/E60.
CAD models
None for SR4M/E60.
Datasheets and manuals
None for SR6M/E60.
Drawings
None for SR6M/E60.
CAD models
None for SR6M/E60.
Datasheets and manuals
None for SR8M/E60.
Drawings
None for SR8M/E60.
CAD models
None for SR8M/E60.
Datasheets and manuals
None for SR10M/E60.
Drawings
None for SR10M/E60.
CAD models
None for SR10M/E60.
Special versions
- High speed A high speed version of the SR10M, 10 circuits (SR10M/15K92).
- SR10M/15K9210 circuits, high speed version.
- Specialized rings An SR20M with specialized rings, 20 circuits (SR20M/GEV).
- SR20M/GEV20 circuits, specialized rings.
Related applications
If the SR-M is not the one
- Finer encoder or resolver SR/ERT Series
10, 20 or 36 circuits, with an optional encoder or resolver.
- No free shaft end B-Series
Tubular, 4 to 8 circuits, the shaft passes through the bore.
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