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  Item found in the following categories;
> Servos & Parts > All Servos
> Servos & Parts > Std. Servo 31-49g
> Servos & Parts > Blue Bird Servo

  RATED:

BMS-631 Super Fast Servo 5.0kg / .10sec / 43g

BMS-631 Super Fast Servo 5.0kg / .10sec / 43g


BMS-631 Super Fast Servo 5.0kg / .10sec / 43g
The servo comes with a servo accessory package and is made with a heavy duty servo case, the servo is designed for R/C high performance Car applications. Double ball bearing with flexible rubber waterproof, otherwise the ourput spline is same with Futaba 25 tooth.
This servo comes with JR/Hitec S Connector also known as a "Universal Connector". Even thought this servo comes with JR/Hitec S Connectors, this servo is electrically compatible with Futaba receivers.
1. Plastic Gear
2. curve gear with smooth.
3. Double M9.6 ball bearing (si-oil)
4. 3 pole strong torque of motor with low signal affect and success get CE certification.
5. Rubber fitting case for waterproof
6. Same with Futaba 25 tooth spline
7. Heavy duty servo case
 
  
Weight: 43 grams / 1.52 oz.
Dimensions: 40.5 x 20 x 38.5 mm / 1.60 x 0.78 x 1.54 inch
Torque At 4.8V: 5.0kg-cm , 69 oz-in
Torque At 6.0V: 6.2kg-cm , 89 oz-in
Speed At 4.8V: 0.10 sec / 60° at no load
Speed At 6.0V: 0.08 sec / 60° at no load

 


PRODUCT ID: BMS-631

This product available from a warehouse near you!

Weight (g) 43
Torque (kg) 6.2
Speed (Sec/60deg) 0.08
A(mm) 41
B(mm) 41
C(mm) 37.94
D(mm) 20
E(mm) 54
F(mm) 27
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Customer Data
72g Back warehouse: 0 10+ $11.76
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 Customer rated 5 crowns   
 
Total of 6 discussions.
mastiff  5 points - 3/17/2013
 
I purchased one of these servos for the tail of a Gaui 425 as the Futaba 9001 I had was too slow. Apart from speed the 9001 worked well behind the HK401B Gyro. Power is fed through the UBEC on a Red Brick 80 amp ESC. My radio is Spektrum DSMX. LIPO 6S (2 3s 1800 in series) After replacing the 9001 with the 631 The receiver led goes out and the servo does not respond to tx commands. I am presuming that this servo is drawing too much current and suckung the system down. Is this a bad servo or do I need to change something to make it work. Thank you
 HellyFlyer 1249 points
add a BEC
Tdog1  4 points - 12/16/2011
 
anyone knows the servo rate for this servo?
 glowin 84 points
It is a normal analog servo, so rate should be anything between 50 and 65 Hz.
Thomas  35 points - 1/7/2011
 
has anyone done a bench test on these servo's to see how much current they draw ?

I have the metal geared version on my tail on a 30 nitro, very happy with the performance, but my rx battery pack gets low in voltage after about 2 flights, where I could do easily 6 flights with my hitec servo on tail and that's a huge difference for just one servo. I don't have all the tools to do the bench test. many thanks in advance.
timbulb  68 points - 7/24/2010
 
What kind of servo horns fit on these HobbyKing servos? Futaba?Hitech? How many splines?
 alino74 87 points
Hi
Futaba can fit.
Alex
 N9301S 5 points
are very greedy :(
 marcceluss 6 points
all 25 tooth Futaba fit
boris  207 points - 5/15/2010
 
IS IT GOOD FOR TREX 600? TNX
 Buzz_eclair 74 points
Yes i use it on the rudder
Eric1180  2278 points - 2/21/2010
 
It's weird they describe this as a RC car servo. When most people are using them for Heli tail servos and 3D planes.
 totofrombelgium 117 points
Hello,
I use it on my raptor 30 as tail servo and it works very well

S.Messina
 Denzen 1 points
this servo could be universal used. I used on 1/10 scale drift car and planes. works like magic. very fast very affordable and very durable. must buy!
 marcceluss 6 points
I use it in my 1/10 sclae drift car and other in 1/10 rally car i recomend it
Customer Reviews
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Overall Rating

356 likes
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14 thumbs up!
THIS IS IT!!! THIS IS THE SERVO TO BUY!!!! OR ITS METAL GEAR VERSION!!! DO IT OR DIE!! i got 6 of these and 6 of the bms-631mg and omg!!! fast, smooth, lite, quiet, precise centering and powerful! i hope this servo will always be here.


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Overall Rating

36 likes
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QualityUNRATED
6 thumbs up!
This finally solved my heli tail jitter problems inexpensively. I believe the high strength and adequate speed of this servo (with a GY240 or GY401 gyro) is more than enough for my basic aerobatics and 3D skills.


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Overall Rating
Rizza83
98 likes
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QualityUNRATED
2 thumbs up!
Wow this servo is ace very happy with the performance, smooth and quiet in operation and plenty fast enough for the tail servo in my 500 size helis.
Thanks HK


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Overall Rating
rfb750
102 likes
ValueUNRATED
QualityUNRATED
2 thumbs up!
Using it as a tail servo on a caliber 30 with a GY401. so far works perfectly


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Overall Rating
Phill63
88 likes
ValueUNRATED
QualityUNRATED
2 thumbs up!
Lightning quick and strong. Using on Hurricane 550 on cyclic and rudder. Great Price.


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