Parallax (Futaba S148) Continuous Rotation Servo #900-00008
The Parallax continuous rotation servo is a Futaba S148 servo that has been modified for continuous rotation. Since servos have their own integrated control circuitry, this unit gives you an easy way to get your robot moving.
Key specs at 6 V: 50 RPM (no-load), 38 oz-in (2.7 kg-cm), 43 g
| Description | Specs (9) | Pictures (3) | Resources (1) | FAQs (1) | On the blog (1) |
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Parallax (Futaba S148) continuous rotation servo. |
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Overview
The Parallax (Futaba S148) continuous rotation servo converts standard RC servo position pulses into continuous rotation speed. It can be controlled directly by a microcontroller without any additional electronics, which makes it a great actuator for robotics projects. The servo includes an adjustable potentiometer that can be used to center the servo and comes with a star-shaped servo horn and an 11″ (270 mm) lead.
Specs
- Power: 4.8 – 6 V
- Top 6 V speed: 50 RPM (with no load)
- Torque: 2.7 kg-cm/38 oz-in at 6 V
- Weight: 43 g/1.5 oz with servo horn and screw
- Size (L x W x H): 40.5 mm x 20.0 mm x 36.1 mm / 1.60" x 0.8" x 1.42"
- Control interface: RC servo pulse width control, 1.50 ms neutral
- Manual adjustment port
This servo is compatible with our servo controllers and our servo wheels and sprockets. This servo is also compatible with our Mounting Bracket for Standard-Size Servos:
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Continuous rotation servo comparison
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Continuous rotation servo size comparison. From left to right: SpringRC SM-S4303R, Power HD AR-3606HB, FEETECH FS5106R, Parallax Feedback 360°, Parallax (Futaba S148), and FEETECH FS90R. |
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| 6 V | 4.8 V | Weight (g) | Size (mm) | Direction vs pulse (1ms → 2ms) |
Digital? | Feedback? | Price | |||
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| Max speed (RPM) |
Stall torque (oz·in) |
Max speed (RPM) |
Stall torque (oz·in) |
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| SpringRC SM-S4303R | 54 | 71 | 43 | 46 | 41 | 41.3 × 20.7 × 40.2 | CW→CCW | $14.95 | ||
| SURPLUS SpringRC SM-S4303R 2-Pack | 54 | 71 | 43 | 46 | 41 | 41.3 × 20.7 × 40.2 | CCW→CW | $19.95 for a pair of servos | ||
| FEETECH FS5106R | 95 | 83 | 75 | 67 | 43 | 40.8 × 20.1 × 38.0 | CW→CCW | $15.95 | ||
| Parallax Feedback 360° | 140 | 35 | – | – | 41 | 40.0 × 20.0 × 37.2 | CW→CCW |  |
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$27.99 |
| FEETECH FT90R | 135 | 21 | 108 | 18 | 9 | 22.9 × 12.1 × 26.5 | CW→CCW | |
$8.95 | |
| FEETECH FS90R | 130 | 21 | 100 | 18 | 9 | 22.5 × 12.1 × 23.4 | CW→CCW | $5.95 | ||
People often buy this product together with:
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0.100" (2.54 mm) Breakaway Male Header: 1×40-Pin, Straight, Double-Sided |
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4-AA Battery Holder |
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Micro Maestro 6-Channel USB Servo Controller (Assembled) |
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