Servo # Description Weight Dimensions
(W x L x H)
Torque Speed Motor/ Bearings Street Price Notes
S136G Compact Retract 1.48 oz
(42.0 g)
0.87 x 1.75 x 1.00 in
(22 x 44 x 25 mm)
61/76.4 oz-in
(4.4/5.5 kg-cm)
0.63/0.50 sec
@ 180 deg
5 pole, metal gears, watertight $59.99 retracts
S148 Precision Standard (my favorite servo!) 1.6 oz
(45.4 g)
0.77 x 1.59 x 1.41 in
(20 x 40 x 36 mm)
44/57 oz-in
(3.2/4.1 kg-cm)
0.23/0.19 sec
@ 60 deg
3 pole, oilite bearing $14.99 general usage, great servo
S3001 Standard Precision BB 1.6 oz
(45.4 g)
0.77 x 1.59 x 1.41 in
(20 x 40 x 36 mm)
44/57 oz-in
(3.2/4.1 kg-cm)
0.23/0.19 sec
@ 60 deg
3 pole, top ball bearing $24.99 Standard use, good for helicopters
S3002 Mini BB 1.2 oz
(34.1 g)
0.62 x 1.21 x 1.18 in
(15.7 x 30.7 x 30.0 mm)
53.0/64.0 oz-in
(3.8/4.6 kg-cm)
0.26/0.21 sec
@ 60 deg
5 pole, metal gears, dual ball bearings $64.99
S3003 Standard 1.31 oz
(37.2 g)
0.78 x 1.59 x 1.42 in
(20 x 40 x 36 mm)
44/57 oz-in
(3.2/4.1 kg-cm)
0.23/0.19 sec
@ 60 deg
3 pole, top ball bearings $11.99 Standard use, not for heli
S3004 Standard BB 1.30 oz
(36.9 g)
0.78 x 1.59 x 1.42 in
(20 x 40 x 36 mm)
44/57 oz-in
(3.2/4.1 kg-cm)
0.23/0.19 sec
@ 60 deg
3 pole, single top ball bearing $13.99 Standard use, not for helicopters
S3101 Micro Precision 0.60 oz
(17.0 g)
0.50 x 1.05 x 1.12 in
(12.7 x 26.7 x 28.4 mm)
35.0/43.0 oz-in
(2.5/3.1 kg-cm)
0.18/0.14 sec
@ 60 deg
5 pole motor $29.99 hlg, electrics, high precision micro
S3102 Micro Precision Metal Gear 0.80 oz
(22.7 g)
0.51 x 1.10 x 1.16 in
(13.0 x 27.9 x 29.5 mm)
51.4/63.2 oz-in
(3.7/4.6 kg-cm)
0.25/0.20 sec
@ 60 deg
5 pole motor, metal output gear $64.99 hlg, electrics
S3103 Micro Mini 0.34 oz
(9.7 g)
0.43 x 0.86 x 0.78 in
(10.9 x 21.8 x 19.8 mm)
17.3/21.3 oz-in
(1.2/1.5 kg-cm)
0.11/0.09 sec
@ 60 deg
3 pole, metal gears $31.99 small aircraft
S3104 1/4 Scale 3.3 oz
(93.7 g)
1.2 x 2.4 x 2.0 in
(30.5 x 61.0 x 50.8 mm)
126/NR oz-in
(9.1/NR kg-cm)
0.21/NR sec
@ 60 deg
3 pole, no bearings, watertight $34.99 1/4 scale and large aircraft
S3106 Low Cost Micro 0.34 oz
(9.7 g)
0.43 x 0.85 x 0.78 in
(11 x 22 x 20 mm)
17.3/21.3 oz-in
(1.2/1.5 kg-cm)
0.11/0.09 sec
@ 60 deg
3 pole, nylon gears $22.99 small aircraft, park flyers
S3302 1/4 Scale BB Servo 3.60 oz
(102.2 g)
1.14 x 2.32 x 1.97 in
(29 x 59 x 50 mm)
89.2/110.0 oz-in
(7.9 kg-cm)
0.24/0.19 sec
@ 60 deg
5 pole motor, metal gear, water resistant $54.99 1/4 scale, large models
S3401 Coreless BB 1.66 oz
(47.1 g)
0.79 x 1.60 x 1.47 in
(20.1 x 40.6 x 37.3 mm)
36.4/44.4 oz-in
(2.6/3.2 kg-cm)
0.19/0.15 sec
@ 60 deg
5 pole motor, metal gear, water resistant $44.99
S3801 Sail Arm BB 3.7 oz
(107.9 g)
1.2 x 2.4 x 1.97 in
(30.5 x 61.0 x 50.0 mm)
156.2/194.0 oz-in
(11.3/14.0 kg-cm)
0.33/0.22 sec
@ 60 deg
5 pole motor, arm type, metal gear, water resistant $69.99 boats, retracts, robots
S3802 Sail Winch 2.60 oz
(73.84 g)
0.91 x 1.73 x 1.69 in
(23.1 x 43.9 x 42.9 mm)
122.2/153.0 oz-in
(8.8/11.0 kg-cm)
0.70/0.56 sec
@ 60 deg
arm type, metal gear $54.99 boats, robots
S5301 High Torque Giant Scale 4.41 oz
(125.2 g)
1.2 x 2.4 x 1.96 in
(30.5 x 61.0 x 49.8 mm)
233/292 oz-in
(16.8/21.1 kg-cm)
0.29/0.23 sec
@ 60 deg
3 pole motor, all metal gear, dual ball bearings $94.99 boats, robots
S5302 High Torque 1/4 Scale 4.41 oz
(125.2 g)
1.13 x 2.33 x 1.96 in
(28.7 x 59.2 x 49.8 mm)
189/236.0 oz-in
(13.6/17.0 kg-cm)
0.19/0.15 sec
@ 60 deg
5 pole motor, all metal gear, dual ball bearings $94.99 large models
S5801 Sail Winch BB 2.90 oz
(82.4 g)
0.98 x 1.81 x 1.73 in
(24.9 x 46.0 x 43.9 mm)
108.8/136.0 oz-in
(7.9/9.8 kg-cm) 6/7.2
0.6/0.5 sec
@ 360 deg 6/7.2
5 pole motor, drum type, metal gear, water resistant $149.99 sailboats
S9001 Coreless BB 1.7 oz
(48.3 g)
0.78 x 1.59 x 1.48 in
(19.8 x 40.4 x 37.6 mm)
54.2/72.2 oz-in
(3.9/5.2 kg-cm)
0.22/0.18 sec
@ 60 deg
Coreless $44.99 Good for everything, including helicopters
S9101 High Speed Coreless BB 1.5 oz
(42.6 g)
0.80 x 1.52 x 1.36 in
(20.3 x 38.6 x 34.5 mm)
34.1/42.7 oz-in
(2.5/3.1 kg-cm)
0.20/0.16 sec
@ 60 deg
Coreless, water resistant $59.99 high precision use
S9102 Wing Mount Aileron BB 1.6 oz
(45.4 g)
0.87 x 1.85 x 1.05 in
(22.1 x 47.0 x 26.7 mm)
40.0/50.0 oz-in
(2.9/3.6 kg-cm)
0.16/0.13 sec
@ 60 deg
Coreless, water resistant $89.99 wings, small spaces
S5050 Digital High Torque Giant Scale 4.41 oz
(125.2 g)
1.2 x 2.4 x 2.0 in
(30.5 x 61.0 x 50.8 mm)
211.0/263.7 oz-in
(15.2/19.0 kg-cm) @ 6V
0.25/0.20 sec
@ 60 deg @ 6V
5 pole, watertight $109.99 for large control surfaces
S9150 Digital Low Profile Aileron 1.87 oz
(53.1 g)
1.06 x 1.87 x 1.00 in
(26.9 x 47.5 x 25.4 mm)
80.5/NR oz-in
(5.8/NR kg-cm)
0.18/NR sec
@ 60 deg
coreless, special servo arm style, watertight $99.99 wings, small space use
S9151 Digital High Torque Rudder F3A 1.75 oz
(49.7 g)
0.75 x 1.60 x 1.50 in
(19.1 x 40.6 x 38.1 mm)
131.9/NR oz-in
(9.5/NR kg-cm)
0.19/NR sec
@ 60 deg
very precise F3A, dual ball bearings, watertight $99.99 helicopters, high torque use
S9202 Coreless BB 1.8 oz
(51.1 g)
0.79 x 1.59 x 1.40 in
(20.1 x 40.4 x 35.6 mm)
76/98 oz-in
(5.5/7 kg-cm)
0.26/0.21 sec
@ 60 deg
Coreless $54.99 Great for helicopters
S9203 High Speed BB 1.9 oz
(54.0 g)
0.79 x 1.59 x 1.48 in
(20.1 x 40.4 x 37.6 mm)
76.4 oz-in
(5.5 kg-cm)
0.11 sec
@ 60 deg
Coreless -?- Helicopters, very high speed use
S9204 High Torque BB 1.9 oz
(54.0 g)
0.79 x 1.59 x 1.48 in
(20.1 x 40.4 x 37.6 mm)
131.2 oz-in
(9.5 kg-cm)
0.19 sec
@ 60 deg
Coreless -?- Helicopters, very high torque use
S9205 Digital Heli Servo 1.90 oz
(54.0 g)
0.79 x 1.59 x 1.48 in
(20.1 x 40.4 x 37.6 mm)
76.4/NR oz-in
(5.5/NR kg-cm)
0.11/NR sec
@ 60 deg
high torque and speed, metal gears, watertight $99.99 Helicopters, very high speed use
S9206 Digital Heli Servo 1.90 oz
(54.0 g)
0.79 x 1.59 x 1.48 in
(20.1 x 40.4 x 37.6 mm)
132.7/NR oz-in
(9.6/NR kg-cm)
0.19/NR sec
@ 60 deg
very high torque, metal gears, watertight $114.99 Helicopters, very high torque use
S9250 Digital Heli High Speed 1.90 oz
(54.0 g)
0.79 x 1.59 x 1.48 in
(20.1 x 40.4 x 37.6 mm)
76.3/NR oz-in
(5.5/NR kg-cm)
0.11/NR sec
@ 60 deg
high torque and speed, metal gears, watertight $106.99 Helicopters, high torque and speed use
S9251 Digital High Speed Rudder 2.0 oz
(56.8 g)
0.75 x 1.50 x 1.40 in
(19.1 x 38.1 x 35.6 mm)
51.4/NR oz-in
(3.7/NR kg-cm)
0.07/NR sec
@ 60 deg
coreless, metal gears, watertight $124.99 for use only with GY601 gyro
S9252 Digital High Torque All-Purpose 1.75 oz
(49.7 g)
0.75 x 1.50 x 1.40 in
(19.1 x 38.1 x 35.6 mm)
91.6/NR oz-in
(6.6/NR kg-cm)
0.14/NR sec
@ 60 deg
watertight $109.99 Helicopters, high torque use
S9253 Digital High Speed Rudder 1.74 oz
(49.4 g)
0.75 x 1.50 x 1.40 in
(19.1 x 38.1 x 35.6 mm)
27.8/NR oz-in
(2.0/NR kg-cm)
0.08/NR sec
@ 60 deg
coreless, watertight $129.99 for F3C helis NOT using GY601 gyro
S9254 Standard BB Digital 1.70 oz
(48.5 g)
0.75 x 1.60 x 1.40 in
(19.1 x 40 x 35.6 mm)
47/NR oz-in
(3.4/NR kg-cm)
0.06/NR sec
@ 60 deg
Dual ball bearing, nylon gears $109.99 helicopters or other high speed applications (tail servo) [6v use not recommended]
S9303 High Torque BB 2.3 oz
(65.3 g)
0.79 x 1.59 x 1.55 in
(20.1 x 40.4 x 39.4 mm)
99.0 oz-in
(7.1 kg-cm)
0.19 sec
@ 60 deg
Coreless -?- general high torque use
S9304 Coreless BB 1.8 oz
(51.1 g)
0.79 x 1.59 x 1.40 in
(20.1 x 40.4 x 35.6 mm)
56.4/69.5 oz-in
(4.1/5.0 kg-cm)
0.28/0.22 sec
@ 60 deg
Coreless, watertight $64.99 general precision use
S9402 High Speed High Torque BB 1.9 oz
(54.0 g)
0.79 x 1.59 x 1.48 in
(20.1 x 40.4 x 37.6 mm)
89.1/111.1 oz-in
(8.0 kg-cm)
0.13/0.10 sec
@ 60 deg
Coreless, metal gears, watertight $99.99 general high torque and speed use
S9403 Coreless BB 1.7 oz
(48.3 g)
0.79 x 1.59 x 1.40 in
(20.1 x 40.4 x 35.6 mm)
44.5 oz-in
(3.2 kg-cm)
0.16 sec
@ 60 deg
Coreless -?- general high precision use
S9404 Coreless BB 1.94 oz
(55.1 g)
0.79 x 1.54 x 1.47 in
(20 x 39 x 37 mm)
79.2 oz-in
(5.7 kg-cm)
0.11 sec
@ 60 deg
Coreless, alloy gear $114.99 discontinued, similar to S3401
S9450 Digital High Speed Car 1.94 oz
(55.1 g)
0.79 x 1.59 x 1.48 in
(20.1 x 40.4 x 37.6 mm)
88.8/111.0 oz-in
(6.4/8.0 kg-cm)
0.10/0.08 sec
@ 60 deg
coreless, metal gears, watertight $129.99 for cars with higher torque and speed
S9550 Digital High Speed Low Profile 1.55 oz
(44.0 g)
0.82 x 1.59 x 1.00 in
(20.8 x 40.4 x 25.4 mm)
66.6/83.3 oz-in
(4.8/6.0 kg-cm)
0.11/0.09 sec
@ 60 deg
coreless, metal gears, watertight $119.99 Air, Heli
S9602 Mini Coreless BB 1.09 oz
(31.0 g)
0.59 x 1.41 x 1.21 in
(15.0 x 35.8 x 30.7 mm)
37.5 oz-in
(2.7 kg-cm)
0.09 sec
@ 60 deg
Coreless, metal gear $64.99 Air, heli, off, on, gas