The BLS-1004 is a High Voltage (7.4V) Coreless Digital Servo featuring Nanometer alloy gears and an Alu heat sink case. The BLS-1004 includes a heavy duty servo horn set.
• Double ball bearing (Si-oil)
• Japanese brushless motor rated for high voltage up to 2S Lipoly
• Alloy heatsink design
• Digital signal design with 100% fitting square PWS
• Automatic measures central ms
• Digital IC (SOP package with 12bits transfer data)
• MOS-FET driver (spirited driver able to push over 7A power)
• Nanometer alloy gears
• O-ring sealed case
Weight: 66 grams
Dimensions: 40.5 x 20 x 39 mm
Torque @ 6V: 7.4 kg/cm
Torque @ 7.4V: 9.7 kg/cm
Speed @ 6V: 0.055sec / 60 deg at no load
Speed @ 7.4V: 0.048sec / 60 deg at no load
Voltage Range: 6~7.4V
Unit Weight (g)
The jitters were overcome when using 6.6v Life battery packs instead of 6v Nimh. Must have been a voltage issue.I have 4 of these but there is a problem and only 1 can be used in a set up. They create some sort of electronic noise and jitter when other channels on the radio are used. The issue was on both FrSky and Orange DMSX receivers. Ferrite coils on the leads make no difference. Otherwise solid servo.I have bought 2 of these and they test well.
Nice smooth tight gear train, quiet and very quick. Centering is spot on.
They appear well built with very heavy duty plastic control horns.
Not too heavy for brushless standard servos. I expect good things from them.Trs bon servo rapide puissant et fiable je l ai mont sur un t700 l ac trs agreablement surpris mme en 3d appuy il tiens vraiment aussi bien que d autre servo haut de gamme ; frquence de 200hz il ne chauffe pas du tout et fait le boulot je le conseil trs fortementBest servo company there is. Excellent quality products that match or exceed any other. I use this servo as the throttle servo for all my gas planes. From 30cc to 100cc.This servo is build of very high precision. No gear play, very fast. Cable is secured inside on PCB. PCB itself of high manufacturing quality. Housing also very precise. I use this as a tail servo in a HK 600GT. Will come back after a number of flight to report the durability. But as of now, I am very happy with the quality. Tested it so far on a servo tester and in a HV setup with a FBL system at 8,4V. Servo seems to be absolutely worth the money. Worthy screws and fine machined outside, extremely fast with good resolution. Holds the tail rock solid. 2 flights so far, will come back after 50 or 100 flights to report durability but I think that will not be a problem at all.I used this on gas of my Slick 540 35 gasoline..this servo is really fast and have a perfect centering!!! Very very happy with this gas set up...my finger is too slow for it!!!