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08-30-2019, 12:00 PM | #1 |
Rock Crawler Join Date: Nov 2016 Location: Vienna Austria
Posts: 555
| URUAV BLS1806 Brushless HV Waterproof Metal Gear superfastCar Servo - for this price?
Hi guys, what's wrong here? This servo is sold for 27 bucks actually: URUAV RC Car All Metal Servo BLS1806 18kg-cm 0.066s/degree Brushless Torque:15kg-cm@6v 18kg-cm@7.4v Speed:0.085s@6v 0.066s@7.4v/60° Operating voltage:6-8.4v Bearing type:dual bearing Motor type:brushless motor Gear type:titanium&aluminum alloy Operate temperature:-20℃ to 60℃ Working frequency:1520μs/333hz Dimension:40x20x38.2cm Weight:70g This seems impossible. What's wrong? Walter |
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08-30-2019, 12:45 PM | #2 |
I wanna be Dave Join Date: Jun 2016 Location: Austin
Posts: 6,013
| Re: URUAV BLS1806 Brushless HV Waterproof Metal Gear superfastCar Servo - for this pr
It's weak on the torque specification - I wouldn't use one in a crawler. It IS fast, though - might be nice in other applications. For a cheap servo I still would get the DS3218 over that one: https://www.banggood.com/DSSERVO-DS3...r_warehouse=CN DSSERVO DS3218 PRO 20KG 180° 270° Waterproof High Speed Metal Gear Digital Servo For 1/8 1/10 1/12 Scale RC Cars Brand: DSSERVO Item: DS3218 PRO 20KG Digital Servo Operating Voltage: 4.8 ~ 6.8 DC Volts Torque: 21kg.cm(5V), 23.5kg.cm(6.8V) Speed: 0.12sec/60°(5V), 0.09sec/60°(6.8V) Dead Brand: 3μs Motor Type: DC Motor Gear Type: 25T Copper & Aluminum Working Frequence: 50-333Hz Rotation: 180°(PWM 500-2500μs) / 270°(PWM 500-2500μs) Weight: about 60g (2.12 oz) Size: 40 x 20 x 40.5 mm ( 1.58 x 0.79 x 1.60 in) |
08-31-2019, 03:04 AM | #3 |
Rock Crawler Join Date: Nov 2016 Location: Vienna Austria
Posts: 555
| Re: URUAV BLS1806 Brushless HV Waterproof Metal Gear superfastCar Servo - for this pr
Hi, check this one out: https://www.youtube.com/watch?v=6Re_6vCxcgw&t=33s I paid 11 Euro for it ... unbelievable (meanwhile BG has changed the price). DS 3225SG Servo Brand: DSSERVO Item: DS3225 25KG Digital Servo Operating Voltage: 5.0-7.4 DC Volts Torque: 22kg.cm(5V), 24kg.cm(6V), 25.5kg.cm(7.4V) Speed: 0.10sec/60°(5V), 0.08sec/60°(6V), 0.07sec/60°(7.4v) Dead Brand: 2μs Motor: Coreless Pulse: PWM500us-2500us Frequency: 50-333Hz Gear: 25T Gross Weight: 150g Size: 40 x 20 x 38.5 mm ( 1.58 x 0.79 x 1.50 in) Walterp=6S2910081756201209IA&custlinkid=471002[/URL] |
08-31-2019, 03:54 AM | #4 | |
I wanna be Dave Join Date: Jun 2016 Location: Austin
Posts: 6,013
| Re: URUAV BLS1806 Brushless HV Waterproof Metal Gear superfastCar Servo - for this pr Quote:
I'll state for the record that I like to use stronger, name-brand servos for my 2.2" vehicles. My Bomber has used a ProModeler 470oz-in and a Holmes Hobbies SHV500 v1. | |
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