B6-3.2W weatherproof tubular slip ring
Weatherproof six-circuit tubular slip ring for shafts up to 81.3 mm (3.2 in), rated 4,500 rpm continuous and 6,000 rpm in bursts, sealed against water, mud, snow and dust.
Weatherproof six-circuit tubular slip ring with a 60 ppr encoder and an 81.3 mm (3.2 in) through bore.
- 6
- Circuits
- 81.3 mm
- Inner bore
- 4 500 rpm
- Max speed
- Weatherproof
- Sealed for the road
- 6
- Circuits
- 81.3 mm
- Inner bore
- 4 000 rpm
- Max speed
- Weatherproof
- Sealed for the road
- Mountingthrough the bore
- Encoder60 ppr on the /E60 versions
- Mountingthrough the bore
- Encoder60 ppr on the /E60 versions
B6-3.2W: weatherproof six-circuit tubular slip ring, 3.2 in bore
The B6-3.2W is a weatherproof tubular slip ring with six circuits rated at 1 A, for shafts up to 81.3 mm (3.2 in) in diameter. Six circuits allow more than one full-bridge strain gage channel, which is useful on drive shafts where both torque and axial force are measured, and give enough connections for spinning amplifiers. An amplifier on the rotating side sits closer to the sensor, which reduces errors from long lead wires, connector resistance variations, electromagnetic interference and temperature gradients across the contacts. Specially designed seals protect the slip ring from water, mud, snow, dust and other contaminants. The body is Ø 134.3 mm (5.286 in) and 41.1 mm (1.618 in) wide, and the assembly weighs 0.98 kg. It is rated 4,500 rpm continuous and 6,000 rpm in bursts, from −40 to 121 °C, with a maximum peak noise of 0.1 Ω.
Six color-coded solder terminals on the rotor, redundant on the opposite side, take the sensor wires through a wire path slot. On the stator, a Bendix PT02E-10-6P connector is supplied with its PT06E-10-6S mating connector. The rotor is fastened with eight #10-24 set screws, and a bushing is needed on shafts smaller than 3.2 in. The slip ring turns in both directions, and an optimal sealing direction may be specified.
It is used on large automotive drive shafts in road testing. For the open version with the same bore, see the B4-3.2 and B6-3.2.
B6-3.2W/E60: weatherproof tubular slip ring with speed encoder, 3.2 in bore
The B6-3.2W/E60 is the B6-3.2W weatherproof tubular slip ring with a 60 pulse-per-revolution encoder for shaft speed. It mounts on the shaft, which passes through its 81.3 mm (3.2 in) bore, and carries strain gages, thermocouples, accelerometers and low voltages through six circuits rated at 1 A; specially designed seals protect it from water, mud, snow, dust and other contaminants. Its rings are solid silver alloy and its brushes silver-graphite. Its stator is 93.7 mm in diameter and it is 41.2 mm long; it runs up to 4 500 rpm, from −40 to 121 °C.
On installation, the rotor is secured to the shaft with set screws, square and concentric to the axis of rotation; a bushing adapts it to shafts smaller than 81.3 mm. Sensor wires run along the outside of the shaft and through slots in the rotor to the solder terminals, in stranded wire of 24 AWG at most, then are secured to the shaft and coated with RTV silicone. The stator is held by a flexible restraint, such as a small cable, a spring or a wire tie, rather than by its cable. The silver contacts are wear parts: they are inspected periodically and last about 100 million revolutions under ideal conditions.
It is used on large automotive drive shafts in road testing, where torque and shaft speed are recorded on the same assembly.


Specifications
| Circuits | 6 |
|---|---|
| Rotation sensor | None |
| Current per circuit | 1 A |
| Mounting | Through bore |
| Max speed | 4 500 rpm |
| Shaft diameter | 81.3 mm |
| Dimensions | Ø 93.7 × 41.19 mm |
| Operating temperature | −40 to 121 °C |
| Protection | Weatherproof |
| Connections | Solder terminals · Connector (rotor: solder terminals · stator: connector) |
| Circuits | 6 |
|---|---|
| Rotation sensor | Encoder |
| Encoder resolution | 60 ppr |
| Current per circuit | 1 A |
| Mounting | Through bore |
| Max speed | 4 000 rpm |
| Shaft diameter | 81.3 mm |
| Dimensions | Ø 93.7 × 41.19 mm |
| Operating temperature | −40 to 121 °C |
| Protection | Weatherproof |
| Connections | Solder terminals · Connector (rotor: solder terminals · stator: connector) |
Request a quote
Resources
Datasheets and manuals
Drawings
CAD models
None for B6-3.2W.
Datasheets and manuals
Drawings
CAD models
None for B6-3.2W/E60.
Related applications
A question on this product?
Shaft diameter, speed, circuits, indoor or outdoor. An application engineer answers.
More details to give? Use the full contact form.




