Bunky.F.Knuckle
150cc
Ladies and germs, boys and girls, children of all ages....... Come gather around and lets discuss a new servo to the market, the BlueBird HB 50B brushless servo. You have read the spec sheet, etc..... Wow! Blow me over with a feather, that thing has got some serious torque, type talk! Yep, believe it!
I wont get into the specifics. My whole post is about the insides of the servo.
Lets start with what contains the insides...... The outer case. The outer case is full aluminum. The center is a massive heatsink, which houses that bad mamajama Japanese Brushless motor. The top case, full aluminum, held on independently of the lower case, houses 3 ball bearings, 1 for the output shaft, and 1 each for the intermediate and primary gears. I couldnt believe my eyes when I seen 3 bearings in the top case. Typically, you get 1, the output shaft and 1 bronze/brass bushing and a plastic case. Then you start pulling gears off to reveal 3 more bearings! Land sakes alive!! 6 ball bearings! That is flat out unheard of. 2 bearings for the same shafts of the intermediate and primary gearing. But also, the underside of the output shaft where the potentiometer is.
The lower case, held on independently of the top case, each case half mounts to the center heat sink section via 4 2mm screws. Removal of that, exposes the brains of the operation for this massive servo. Be careful there, as the waterproof o ring is wrapped above the servo wire grommet. Then you can see the wonderful brain board with all the SMT components (Surface Mount Technology). To the naked eye, everything looks great! And even under a magnafier, it looks even better!
As you can tell, 3 of the gears have helical cuts on them. A tiny let down for me, but a fully aluminum case makes up for it.
These are available at TailDragger RC, but are currently out of stock, and stock not due to return until sometime in June. I was able to get my litttle mits on 1, only 1, for a reason I care not to share here. This servo is a bargain for what you get with it, and for the specs it has. $100 all day and night long. I really feel that the servo deserves to be sold for a bit more money, say in the $130-150 range. I would still buy them for $130.
I wont get into the specifics. My whole post is about the insides of the servo.
Lets start with what contains the insides...... The outer case. The outer case is full aluminum. The center is a massive heatsink, which houses that bad mamajama Japanese Brushless motor. The top case, full aluminum, held on independently of the lower case, houses 3 ball bearings, 1 for the output shaft, and 1 each for the intermediate and primary gears. I couldnt believe my eyes when I seen 3 bearings in the top case. Typically, you get 1, the output shaft and 1 bronze/brass bushing and a plastic case. Then you start pulling gears off to reveal 3 more bearings! Land sakes alive!! 6 ball bearings! That is flat out unheard of. 2 bearings for the same shafts of the intermediate and primary gearing. But also, the underside of the output shaft where the potentiometer is.
The lower case, held on independently of the top case, each case half mounts to the center heat sink section via 4 2mm screws. Removal of that, exposes the brains of the operation for this massive servo. Be careful there, as the waterproof o ring is wrapped above the servo wire grommet. Then you can see the wonderful brain board with all the SMT components (Surface Mount Technology). To the naked eye, everything looks great! And even under a magnafier, it looks even better!
As you can tell, 3 of the gears have helical cuts on them. A tiny let down for me, but a fully aluminum case makes up for it.
These are available at TailDragger RC, but are currently out of stock, and stock not due to return until sometime in June. I was able to get my litttle mits on 1, only 1, for a reason I care not to share here. This servo is a bargain for what you get with it, and for the specs it has. $100 all day and night long. I really feel that the servo deserves to be sold for a bit more money, say in the $130-150 range. I would still buy them for $130.
