| | 1 | = BarrettHand BH8-280 Technical Specifications = |
| | 2 | |
| | 3 | === Kinematics === |
| | 4 | Total fingers: 3 |
| | 5 | Fingers which spread: 2 |
| | 6 | Joints per finger: 2 |
| | 7 | Motors per finger: 1 |
| | 8 | Axes of palm spread motion: 2 |
| | 9 | Motors for palm spread motion: 1 |
| | 10 | Total hand axes: 8 |
| | 11 | Total hand motors: 4 |
| | 12 | |
| | 13 | === Range of Motion === |
| | 14 | Finger base joint: 140° |
| | 15 | Fingertip: 45° |
| | 16 | Finger spread: 180° |
| | 17 | |
| | 18 | === Finger Speed === |
| | 19 | Finger fully open to fully closed:1.0 sec |
| | 20 | Full 180° finger spread: 0.5 sec |
| | 21 | |
| | 22 | === Position Sensing === |
| | 23 | Type: optical incremental encoder |
| | 24 | Resolution: 0.008° at the finger base joint |
| | 25 | 17,500 encoder counts full finger open to full close |
| | 26 | |
| | 27 | === Weight === |
| | 28 | BH8-280 : 1.2 kg (2.60 lb) |
| | 29 | |
| | 30 | BH8-282 : 978 g (2.15 lb) |
| | 31 | |
| | 32 | Optional Arm Adapter B0133: 0.2 kg |
| | 33 | (0.4 lb) additional |
| | 34 | |
| | 35 | === Payload === |
| | 36 | 6.0 kg (13.2 lbs), 2.0 kg (4.4 lb) per finger |
| | 37 | |
| | 38 | === Finger Forces (at tip) === |
| | 39 | Active: 15 N (3.3 lb) |
| | 40 | Passive: 20 N (4.4 lb) |
| | 41 | |
| | 42 | === Motor Type === |
| | 43 | Rare-Earth , brushless, DC, servo motors |
| | 44 | |
| | 45 | === Mechanisms === |
| | 46 | Worm drives integrated with patented cable drive and breakaway clutch |
| | 47 | |
| | 48 | === Cycles per Month === |
| | 49 | 10,000 |
| | 50 | |
| | 51 | === Power Requirements === |
| | 52 | AC electrical outlet |
| | 53 | |
| | 54 | Load: 440 W |
| | 55 | |
| | 56 | Phases: Single |
| | 57 | |
| | 58 | Voltage: 120/240 VAC (85-264 Vrms) |
| | 59 | |
| | 60 | Frequency: 50/60 Hz (47-63 Hz) |
| | 61 | |
| | 62 | === Power Supply === |
| | 63 | Location: dry, stationary surface |
| | 64 | Size H,W,D: 295 x 145 x 40 mm |
| | 65 | (11.8 x 5.7 x 1.7 in) |
| | 66 | Weight (BH8-280): 1.3 kg (3.4 lb) |
| | 67 | Single Cable to Hand |
| | 68 | 3m continuous-flex cable, 8mm diameter |
| | 69 | |
| | 70 | === Hand Dimensions === |
| | 71 | |
| | 72 | [[Image(htdocs:bhand/280/figure40.png)]] |
| | 73 | |
| | 74 | Figure 40 - !BarrettHand™ Dimensions |
| | 75 | |
| | 76 | === Available Options === |
| | 77 | * B029A Strain gage Fingertip Torque Sensors for all three fingers |
| | 78 | * B0111 C++ Function Library |
| | 79 | * B01C3 Subscription Service |
| | 80 | |
| | 81 | === US Patents (patents established and pending in other countries) === |
| | 82 | * 5,501,498 |
| | 83 | * 5,388,480 |
| | 84 | * 4,957,320 |