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    Display : All categories 9 Power Systems 890 Radio / Servos 378 Servos 140 All Servos 140

    Blue Bird BMS-621DMGplusHS High Speed Digital Servo (MG) 7.2kg / .10sec / 46.5g

    Blue Bird BMS-621DMGplusHS High Speed Digital Servo (MG) 7.2kg / .10sec / 46.5g

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    Blue Bird BMS-621DMGplusHS High Speed Digital Servo (MG) 7.2kg / .10sec / 46.5g

     
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    1 year warranty
    SKU:
    621DMG-HS
    Discontinued Product
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    Product Description
    BMS-621DMG+HS High Speed Digital Servo (7.2kg / .10sec / 46.5g
     
     
    Features: 
    • Double ball bearing (Si-oil)
    • CE Certified Strong 3 Pole Motor
    • Heavy duty sealed water proof case
    • Alloy heatsink
    • Digital signal design with 100% fitting square PWS
    • Automatic measures central ms
    • ALU 6061 alloy and C95 gear material
    • Digital IC (SOP package with 12bits transfer data)
    • MOS-FET driver (spirited driver able to push over 7A power) 
     
     
    Specs: 
    Weight: 46.5g / 1.66oz
    Gear Material: Metal
    Motor: Brushed
    Dimensions: 40.5 x 20 x 38.5mm / 1.60" x 0.78" x 1.54"
    Torque 4.8V: 6.4 kg/cm, 6.0V: 7.2kg/cm , 109 oz/in
    Speed 4.8V: 0.13 sec,  6.0V: 0.10 sec / 60° at no load
    Operating voltage: 4.8 - 6.0V
    Spline Count: 25
    Product Specifications
    • Servo Torque(kg)(min. 0.01kg) 7.20
    • Servo Speed (Sec/60deg) 0.10
    • Servo A(mm) 42.00
    • Servo B(mm) 41.00
    • Servo C(mm) 38.00
    • Servo D(mm) 20.00
    • Servo E(mm) 55.00
    • Servo F(mm) 26.00
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    Reviews

    Only registered users can write reviews. Please, sign in or sign up

    MC | Verified Buyer

    • Overall
    • Quality
    • Value

    ok

    Nov 18, 2022

    Everything ok

    Coolmobility | Verified Buyer

    • Overall
    • Quality
    • Value

    Reliable Powerful Strong Servos

    Oct 09, 2022

    I've been using Bluebird MG servos as rudder servos in IOM Yachts. I coat them further, with "LiquidElectrical Tape", for improved water resistance, especially around leads, as I sail in salt water and have rarely had a failure over 9 years.
    I find the gears need to bed-in a bit to stop chattering at first, but one sail and they are smooth, I've bought them for other IOM friends too and recommend them as a good, cost-effective servo.

    frederik | Verified Buyer

    • Overall
    • Quality
    • Value

    Good product

    Jun 04, 2022

    A good strong servo nice price fast delibery wel packed

    benoit | Verified Buyer

    • Overall
    • Quality
    • Value

    Very Bad !

    Jan 27, 2022

    second time I order servos from hobbyking, second time the material arrives defective, really very poor quality chinese! sad and unacceptable!

    benoit | Verified Buyer

    • Overall
    • Quality
    • Value

    Very Bad !

    Jan 15, 2022

    deplorable... really ..

    Colin | Verified Buyer

    • Overall
    • Quality
    • Value

    Improvement on BMS-620, I hope

    Nov 08, 2021

    I've used the Blue Bird BMS-620 servos for about 9 years, with very few problems in IOM yachts. Waterproofing has been OK but I improve it by mainly coating whole servo case in "Liquid Electrical Tape" and coat circuit-board in Inox. Makes them very tough then.
    Hope these digital versus analogue contolles are better too. Should be.

    Miklarocca | Verified Buyer

    • Overall
    • Quality
    • Value

    Ottima fattura

    Jul 21, 2021

    Sevi di ottima qualità a un prezzo abbordabile.

    GMackay | Verified Buyer

    • Overall
    • Quality
    • Value

    Blue Bird Servos

    Apr 22, 2021

    The best servo's ever!! use them in all airplanes need to buy more.

    Egon | Verified Buyer

    • Overall
    • Quality
    • Value

    Good

    Mar 22, 2021

    Its a good affordable servo for many 1/10 vehicles like road cars, buggies, stadium trucks, and 2WD SCT.
    For 4WD SCT I recommend a servo with 10+ Kg of torque.
    Not for 1/8 vehicles.

    David | Verified Buyer

    • Overall
    • Quality
    • Value

    Great servo.

    Mar 03, 2021

    Servo works great as a steering servo for the Quanum Vandal. Fits perfectly and runs well.

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