Ref: B4-2W, B6-2W

Slip Ring – Tubular – 4 or 6 circuits – 50.8mm – 7000rpm – Weatherproof

Tubular weatherproof slip ring
Circuit number: 4 or 6
Mounts on shafts up to 2″ [50.8 mm] in diameter
Wheatherproof
Operating Temperature Range: -40°C to 121°C
Permanently lubricated bearings
Maximum Rotation speed: 7000 RPM
Maximum Peak Noise: 0.1 Ohm
Width : 32.51 mm
Maximum input: 1A
Rugged stainless steal construction
Instrumentation quality rings and brushes

Presentation

Michigan Scientific’s B4-2W and B6-2W Weatherproof Slip Ring Assembly are ideal for applications that require the slip ring to be sealed and mounted directly on a rotating shaft. Typically used for automotive drive shaft measurement applications, this model employs specially designed seals that provide weatherproof protection from water, mud, snow, dust, and other contaminants for indoor as well as outdoor use. It is designed to fit on shafts up to 50,8mm in diameter and make an electrical connection to strain gages, thermocouples, or other sensors that have been installed on a rotating shaft in rotary equipment. The slip ring brushes and rings are made of precious metals which minimize noise and enable the assemblies to be used for low level instrumentation signals.

The four B4-2W and six circuit B6-2W capacity allows for more than one full bridge strain gage measurement channel. This is useful for drive shaft applications where both torque and axial measurements are needed. Both B4-2W and B6-2W also provides enough circuit connections for use with spinning amplifiers. Locating precision amplifiers on the rotating side of the slip ring greatly improves signal quality because the amplifier is located closer to the sensor. This reduces errors due to long lead wires, connector resistance variations, electro-magnetic interference, and temperature gradients across slip ring contacts.

Installation

B4-2W and B6-2W can easily be mounted by putting the diameter shaft inside the rotor. In this version, the 50.8mm diameter can be adapted to smaller axial measurements. The slip ring assembly is secured to the shaft with six 8-32 set screws. Connections are made through color coded solder terminals located on the slip ring rotor and a connector on the slip ring stator. Redundant terminals are included to provide back-up connections. The compact width design of these slip rings makes them ideal for applications where limited space is available.

Collecting the stator's measurement signal is easily done by using the provided Bendix connector. A 5m cable is included. No additional setup is required. The slip ring can be mounted and used in any application. Another great feature is the limited space it takes: 32mm.

Available models

Model	Circuits	Rotor Diam [mm]	Stator diam [mm]	Length	Rotor connection	Stator connection	Comment
B4-2W	4	50.8	105,7	32,5	Soldering terminals	Connector
B6-2W	6	50.8	105,7	32,5	Soldering terminals	Connector
B6-2W/AMP-SG2	6	50.8	105,7	32,5	Soldering terminals	Connector	2-channel SG amplifier

Applications

Torque measurements transmission
Rear axle measurements
Vibration measurements
Acceleration measurements
Brake measurements
Gearbox rendering measurements

Series: B-Serie
Mounting: Thru the bore
Circuits: 4, 6
Max rotation speed: 7000 rpm
Wheatherproof: included
Encoder: no
Courant maximal par voie: 1000 mA
Rotor Diameter: 50.8 mm
Diamètre stator: 105.7 mm
Longueur: 0.79 mm
Température de fonctionnement: -40 to 121 °C
Contacts rotor: Picots à souder
Contact Stator: Connecteur standard

Rotor diameter: 50.8 mm
Stator diameter: 105.7 mm
Length: 32.11 mm

Options and accessories

Amplifier to connect between the sensor and the slip ring allowing the optimization of the signal's quality
Encoder version for information transmission
Custom wiring (cable lengh, connectors)