BarrettHand BH8-262 Technical Specifications

Kinematics Qty.

• Total fingers: 3
• Fingers which spread: 2
• Joints per finger: 3
• Motors per finger: 1
• Axes of spread motion: 2
• Motors for spread motion: 1
• Total axes: 8
• Total motors: 4

Range of Motion

• Finger base joint: 140¡
• Fingertip: 48¡
• Finger spread: 180¡

Finger Speed

• Finger fully open to fully closed: 1.0 sec
• Full 180¡ finger spread: 0.3 sec

Position Sensing

• Type: optical incremental encoder
• Resolution: 0.008¡ at the finger base joint 17,500 encoder counts full finger open to full close

Weight

• BarrettHand™: 1.18 kg (2.60 lb)
• Optional Arm Adapter B0133: 0.2 kg (0.4 lb) additional

Payload

• 2.0 kg (4.4 lb) per finger at tip

Motor Type

• Samarium-Cobalt, brushless, DC, servo motors

Mechanisms

• Worm drives integrated with patented cable drive and TorqueSwitch™

Power Requirements

• Single phase AC electrical outlet with ground.
• Load: 500 W
• Phases: Single
• Voltage: 95-130 & 190-260 VAC
• Frequency: 50/60 Hz

Power Supply

• Location: dry, stationary surface
• Size: 298 x 149 x 42 mm (11.74 x 5.65 x 1.54 in)
• Weight: 1224 gm (2.70 lb)

Cables

• 3-meter continuous-flex cable, 8-mm diameter (BarrettHand™ Cable)
• 3-meter serial extension cable
• AC line cord

Hand Dimensions

Figure 40 - BarrettHand™ Dimensions

Available Options

• B029A Strain gage Fingertip Torque Sensors for all three fingers
• B0111 C++ Function Library
• B01C3 Subscription Service

US Patents (patents established and pending in other countries)

• 5,501,498
• 5,388,480
• 4,957,320