Servo # Description Weight Dimensions
(W x L x H)
Torque
4.8v/6v
Speed
4.8v/6v
Motor/ Bearings Street Price Notes
HS-50 Deluxe Sub-Micro 'Feather' 0.22 oz
(6.2 g)
0.44 x 0.82 x 0.86 in
(11 x 21 x 22 mm)
8.33/11 oz-in
(0.6/0.8 kg-cm)
0.09/0.08 sec
@ 60 deg
3 pole ferrite motor, nylon gears, no bearings $27.95 electric, park flyers, hlg
HS-55 Economy Sub-Micro 'Feather' 0.29 oz
(7.8 g)
0.45 x 0.89 x 0.94 in
(12 x 23 x 24 mm)
15/18 oz-in
(1.1/1.3 kg-cm)
0.17/0.14 sec
@ 60 deg
3 pole ferrite motor, nylon gears, no bearings $19.95 electric, hlg, lightweight use
HS-60 Super Micro 0.47 oz
(13.5 g)
0.50 x 1.0 x 0.90 in
(13 x 26 x 24 mm)
15.4/18.0 oz-in
(1.1/1.3 kg-cm)
0.20/0.16 sec
@ 60 deg
3 pole ferrite motor, nylon gears, no bearings $23.95 electric, hlg, lightweight use/td>
HS-75BB Retract 1.23 oz
(35 g)
0.90 x 1.73 x 0.98 in
(23 x 44 x 25 mm)
91.7/113.9 oz-in
(6.6/8.2 kg-cm)
0.45/0.34 sec
@ 60 deg
3 pole, 1 metal & 4 resin gears, top ball bearing $17.95 retracts, boats
HS-77BB Low Profile High Torque 1.23 oz
(35 g)
0.90 x 1.73 x 0.98 in
(23 x 44 x 25 mm)
61.1/76.3 oz-in
(4.4/5.5 kg-cm)
0.18/0.14 sec
@ 60 deg
3 pole, 1 metal & 4 resin gears, top ball bearing $25.95 electric, ailerons, retracts
HS-81 Micro Servo 0.58 oz
(16.6 g)
0.47 x 1.17 x 1.16 in
(11.2 x 29.8 x 29.6 mm)
36.1/41.7 oz-in
(2.6/3.0 kg-cm)
0.11/0.09 sec
@ 60 deg
3 pole ferrite motor, nylon gears, no bearings $17.95 electric, hlg, lightweight use/td>
HS-81MG Micro Metal Gear 0.67 oz
(19 g)
0.47 x 1.17 x 1.16 in
(11.2 x 29.8 x 29.6 mm)
36.1/41.7 oz-in
(2.6/3.0 kg-cm)
0.11/0.09 sec
@ 60 deg
3 pole ferrite motor, metal gears, no bearings $22.95 electric, hlg, lightweight use/td>
HS-85BB Mighty Micro Ball Bearing 0.77 oz
(21.9 g)
0.51 x 1.14 x 1.18 in
(13 x 29 x 30 mm)
41.7/48.6 oz-in
(3.0/3.5 kg-cm)
0.16/0.14 sec
@ 60 deg
3 pole ferrite motor, nylon gears, top ball bearing $22.95 electric, hlg, lightweight use/td>
HS-85MG Mighty Micro Metal Gear 0.80 oz
(22.1 g)
0.51 x 1.14 x 1.18 in
(13 x 29 x 30 mm)
41.7/48.6 oz-in
(3.0/3.5 kg-cm)
0.16/0.14 sec
@ 60 deg
3 pole ferrite motor, nylon gears, top ball bearing $29.95 electric, hlg, lightweight use/td>
HS-125MG Slim Wing Servo 0.84 oz
(24.0 g)
0.51 x 1.14 x 1.18 in
(13 x 29 x 30 mm)
41.7/48.6 oz-in
(3.0/3.5 kg-cm)
0.17/0.13 sec
@ 60 deg
3 pole ferrite motor, all metal gears, dual ball bearing $41.95 sailplaneaileron, flaps
HS-225BB Ball Bearing 0.95 oz
(27 g)
1.27 x 0.66 x 1.22 in
(32.4 x 16.8 x 31 mm)
54.2/66.7 oz-in
(3.9/4.8 kg-cm)
0.14/0.11 sec
@ 60 deg
3 pole ferrite motor, ball bearing, oilite bushing $22.95 electric, sp, boats
HS-225MG Metal Gear 1.1 oz
(31 g)
1.27 x 0.66 x 1.22 in
(32.4 x 16.8 x 31 mm)
54.2/66.7 oz-in
(3.9/4.8 kg-cm)
0.14/0.11 sec
@ 60 deg
3 pole ferrite motor, metal gears, ball bearing, oilite bushing $29.95 electric, high performance use
HS-300 Standard Servo 1.7 oz
(47.1 g)
0.8 x 1.6 x 1.4 in
(20 x 41 x 37 mm)
42/51 oz-in
(3.0/3.7 kg-cm)
0.19/0.15 sec
@ 60 deg
3 pole, nylon bushing $14.95 electric, cars, standard use
HS-300BB Economy Ball Bearing 1.75 oz
(49.7 g)
0.8 x 1.6 x 1.4 in
(20 x 41 x 37 mm)
42/51 oz-in
(3.0/3.7 kg-cm)
0.19/0.15 sec
@ 60 deg
3 pole, Top Ball Bearing $20.95 electric, cars, standard use
HS-303 Economy Servo 1.7 oz
(48.5 g)
0.8 x 1.6 x 1.4 in
(20 x 41 x 37 mm)
49 oz-in
(3.5 kg-cm)
0.19/0.15 sec
@ 60 deg
3 pole, Nylon Gears, Nylon Bearings $17.95 electric, cars, standard use
HS-311 Economical Standard 1.7 oz
(45.2 g)
0.8 x 1.6 x 1.4 in
(20 x 41 x 36 mm)
42.0/51.0 oz-in
(3.0/3.7 kg-cm)
0.19/0.15 sec
@ 60 deg
3 pole, nylon bushings $12.95 standard use
HS-322 Super Standard Sport 1.5 oz
(43 g)
0.8 x 1.6 x 1.4 in
(20 x 41 x 37 mm)
42.0/51.0 oz-in
(3.0/3.7 kg-cm)
0.19/0.15 sec
@ 60 deg
3 pole, nylon bushing $9.95 standard use
HS-322HD Standard Heavy Duty 1.5 oz
(43 g)
0.8 x 1.6 x 1.4 in
(20 x 41 x 37 mm)
42.0/49.0 oz-in
(3.0/3.4 kg-cm)
0.19/0.15 sec
@ 60 deg
3 pole, nylon bushings $9.95 standard use
HS-325BB Super Servo 1.7 oz
(48 g)
0.8 x 1.6 x 1.4 in
(20 x 41 x 37 mm)
42.0/49.0 oz-in
(3.0/3.4 kg-cm)
0.19/0.15 sec
@ 60 deg
3 pole, top ball bearing $12.95 standard use
HS-325HB Heavy Duty Ball Bearing 1.7 oz
(48 g)
0.8 x 1.6 x 1.4 in
(20 x 41 x 37 mm)
42/51 oz-in
(3.0/3.7 kg-cm)
0.19/0.15 sec
@ 60 deg
3 pole, top ball bearing $12.95 standard use
HS-422 Deluxe Servo 1.6 oz
(45.5 g)
0.77 x 1.59 x 1.44 in
(19.8 x 40.6 x 36.6 mm)
45.8/56.9 oz-in
(3.3/4.1 kg-cm)
0.21/0.16 sec
@ 60 deg
3 pole, dual oilite bearing, nylon gears $12.95 standard use
HS-425BB Pro Dual BB 1.6 oz
(45.5 g)
0.77 x 1.59 x 1.44 in
(19.8 x 40.6 x 36.6 mm)
45.8/56.9 oz-in
(3.3/4.1 kg-cm)
0.21/0.16 sec
@ 60 deg
3 pole, dual ball bearing, resin gears $14.95 standard use
HS-425HB Super Pro BB 1.6 oz
(45.5 g)
0.8 x 1.6 x 1.4 in
(20 x 41 x 36 mm)
45.8/56.9 oz-in
(3.3/4.1 kg-cm)
0.21/0.16 sec
@ 60 deg
3 pole, dual ball bearing $22.95 standard use
HS-475HB Heavy Duty Ball Bearing 1.4 oz
(39 g)
0.8 x 1.5 x 1.4 in
(20 x 38 x 35 mm)
61/76 oz-in
(4.3/5.5 kg-cm)
0.23/0.18 sec
@ 60 deg
3 pole, dual ball bearing $27.95 standard use
HS-525BB High Speed Ball Bearing 1.65 oz
(45.2 g)
0.77 x 1.56 x 1.41 in
(19.8 x 39.8 x 36 mm)
45.8/56.9 oz-in
(3.3/4.1 kg-cm)
0.17/0.13 sec
@ 60 deg
5 pole, nylon gears, 1 ball bearing, oilite bushing $29.95 high speed applications
HS-525MG High Speed Metal Gear 1.78 oz
(51 g)
0.77 x 1.56 x 1.41 in
(19.8 x 39.8 x 36 mm)
45.8/56.9 oz-in
(3.3/4.1 kg-cm)
0.17/0.13 sec
@ 60 deg
5 pole, metal gears, dual ball bearings $59.95 high speed applications
HS-545BB Ball Bearing Servo 1.56 oz
(44.5 g)
0.77 x 1.56 x 1.41 in
(19.8 x 39.8 x 36 mm)
61.1/76.4 oz-in
(4.4/5.5 kg-cm)
0.22/0.17 sec
@ 60 deg
5 pole, nylon gears, 1 ball bearing, oilite bushing $29.95 electric, cars
HS-605BB Ball Bearing Servo 1.73 oz
(49 g)
0.8 x 1.6 x 1.6 in
(20 x 41 x 40 mm)
92 oz-in
(6.6 kg-cm)
0.13 sec
@ 60 deg
3 pole ferrite, dual ball bearings $59.95 Hi torque applications
HS-605MG Ball Bearing, Metal Gear 1.72 oz
(49 g)
0.77 x 1.59 x 1.57 in
(20 x 41 x 40 mm)
76.4/94.4 oz-in
(5.5/6.8 kg-cm)
0.17/0.13 sec
@ 60 deg
3 pole, metal gears, dual ball bearings $28.95 Hi torque applications
HS-615MG Ball Bearing, Metal Gear 2.12 oz 0.8 x 1.6 x 1.5 in
(20 x 41 x 38 mm)
132 oz-in
(9.5 kg-cm)
0.17 sec
@ 60 deg
Dual Ball Bearing $75.95 Hi torque applications, throttle use
HS-625MG Ultra Speed Metal Gear 1.94 oz
(55.1 g)
0.77 x 1.59 x 1.48 in
(20 x 41 x 38 mm)
76.4/94.4 oz-in
(5.5/6.8 kg-cm)
0.18/0.15 sec
@ 60 deg
3 pole, metal gears, dual ball bearings $28.95 high speed applications
HS-645MG Ultra Torque Metal Gear 1.94 oz
(55.1 g)
0.77 x 1.59 x 1.48 in
(20 x 41 x 38 mm)
106.9/1.33.3 oz-in
(7.7/9.6 kg-cm)
0.24/0.20 sec
@ 60 deg
3 pole, metal gears, dual ball bearings $39.95 high torque applications
HS-700BB Standard 1/4 Scale 3.6 oz
(102 g)
1.14 x 2.32 x 2.04 in
(29 x 59 x 52 mm)
138.9/173.6 oz-in
(10/12.5 kg-cm)
0.22/0.17 sec
@ 60 deg
3 pole, nylon gears, 1 ball bearing, oilite bushing $25.95 Very high torque
HS-705MG Metal Gear 1/4 Scale 4.72 oz
(134 g)
1.14 x 2.33 x 2.05 in
(29 x 59 x 52 mm)
161.1/201.4 oz-in
(11.6/14.5 kg-cm)
0.26/0.20 sec
@ 60 deg
3 pole, nylon gears, 1 ball bearing, oilite bushing $35.95 Very high torque
HS-715BB Ball Bearing Sail Arm 3.59 oz
(102 g)
1.14 x 2.32 x 2.04 in
(29 x 59 x 52 mm)
161.1/201.4 oz-in
(11.6/14.5 kg-cm)
0.25/0.19 sec
@ 60 deg
3 pole, nylon gears, top ball bearing, oilite bushing $35.95 Sail arm servo 90 deg.
HS-725BB 3.5 Turn Sail Drum 3.9 oz
(110 g)
1.14 x 2.32 x 2.04 in
(29 x 59 x 52 mm)
161.1/201.4 oz-in
(14.5 kg-cm)
1.5/1.1 sec
@ 360deg
3 pole, nylon gears, 1 ball bearing, oilite bushing $48.95 Sail Winch 3.5 Turns
HS-805BB Mega Torque 1/4 Scale 5.4 oz
(152 g)
1.18 x 2.59 x 1.26 in
(30 x 66 x 58 mm)
275.0/343.0 oz-in
(19.8/24.7 kg-cm)
0.19/0.14 sec
@ 60 deg
3 pole, heavy duty nylon gears, dual ball bearings $43.95 high torque applications
HS-815BB 140 Degree Sail Arm 5.4 oz
(152 g)
1.18 x 2.59 x 1.26 in
(30 x 66 x 58 mm)
275.0/343.0 oz-in
(19.8/24.7 kg-cm)
0.19/0.14 sec
@ 60 deg
3 pole, heavy duty nylon gears, dual ball bearings $48.95 Sail arm servo 140 degrees
HS-925MG High Speed Coreless 2.0 oz
(56 g)
0.78 x 1.55 x 1.48 in
(20 x 39 x 38 mm)
84.7/106.7 oz-in
(6.1/7.7 kg-cm)
0.20/0.11 sec
@ 60 deg
coreless, metal gears, dual ball bearings $149.99 High Speed Coreless
HS-945MG High Torque Coreless 2.0 oz 0.78 x 1.55 x 1.48 in
(20 x 39 x 38 mm)
122.2/152.8 oz-in
(8.8/11.0 kg-cm)
0.12 sec
@ 60 deg
Coreless, metal gears, dual ball bearing $149.99 High Torque Coreless
HS-5125MG Digital Slim Wing Servo 0.84 oz
(25.0 g)
0.51 x 1.14 x 1.18 in
(13 x 29 x 30 mm)
41.7/48.6 oz-in
(3.0/3.5 kg-cm)
0.17/0.13 sec
@ 60 deg
3 pole ferrite motor, all metal gears, dual ball bearing $65.95 sailplane aileron, flaps
HS-5245MG Digital High Torque Servo 1.12 oz
(32.0 g)
0.7 x 1.3 x 1.18 in
(17 x 32 x 30 mm)
61/76 oz-in
(4.4/5.5 kg-cm)
0.17/0.13 sec
@ 60 deg
3 pole, Alumite metal gears, dual ball bearing $65.95 sailplane aileron, flaps
HS-5425MG Digital Mini 0.84 oz
(24.0 g)
0.51 x 1.14 x 1.18 in
(13 x 29 x 30 mm)
41.7/48.6 oz-in
(3.0/3.5 kg-cm)
0.17/0.13 sec
@ 60 deg
3 pole ferrite motor, all metal gears, dual ball bearing $65.95 sailplane aileron, flaps
HS-5475HB Digital High Torque Heavy Duty 1.4 oz
(39 g)
0.8 x 1.5 x 1.4 in
(20 x 38 x 35 mm)
61/76 oz-in
(4.3/5.5 kg-cm)
0.23/0.18 sec
@ 60 deg
3 pole, dual ball bearing New! electric, cars, heavy duty use
HS-5625MG Digital High Speed 2.11 oz
(60.0 g)
0.77 x 1.59 x 1.48 in
(20 x 41 x 38 mm)
109.0/131.0 oz-in
(7.9/9.4 kg-cm)
0.17/0.14 sec
@ 60 deg
3 pole, 3 metal gears, dual ball bearings $54.95 accurate applications
HS-5645MG Digital High Torque 2.11 oz
(60.0 g)
0.77 x 1.59 x 1.48 in
(20 x 41 x 38 mm)
143.0/168.0 oz-in
(12.1/10.3 kg-cm)
0.23/0.18 sec
@ 60 deg
3 pole, Alumite metal gears, dual ball bearings $54.95 accurate applications
HS-5645HB Digital 1/4 Scale 5.14 oz
(146 g)
1.14 x 2.32 x 2.04 in
(29 x 59 x 52 mm)
222.2/263.9 oz-in
(16/19 kg-cm)
0.16/0.13 sec
@ 60 deg
3 pole, metal gears, dual ball bearings $69.95 large models
HS-5735MG Digital 1/4 Scale 5.1 oz
(146 g)
1.1 x 2.3 x 2.0 in
(29 x 59 x 52 mm)
122/264 oz-in
(16/19 kg-cm)
0.16/0.13 sec
@ 60 deg
3 pole, metal gears, dual ball bearing, heat sink $89.95 large models
HS-5925MG Digital Coreless High Speed 1.97 oz
(56 g)
0.78 x 1.55 x 1.48 in
(20 x 39 x 38 mm)
102.8/127.8 oz-in
(7.4/9.2 kg-cm)
0.10/0.08 sec
@ 60 deg
Coreless, metal gears, dual ball bearing $89.95 high torque and high speed
HS-5945MG Digital Coreless High Torque 2.0 oz
(56 g)
0.8 x 1.2 x 1.5 in
(20 x 39 x 38 mm)
153/181 oz-in
(11/13 kg-cm)
0.16/0.13 sec
@ 60 deg
coreless, metal gears, dual ball bearing $89.95 high torque use
HS-5975HB Digital Heavy Duty High Speed 1.76 oz
(49 g)
0.8 x 1.5 x 1.5 in
(20 x 38 x 38 mm)
91/109 oz-in
(6.5/7.8 kg-cm)
0.13/0.10 sec
@ 60 deg
coreless, resin gears, dual ball bearing $89.95 New! heavy duty high speed use