JR 368 bb mg
12-04-2007, 08:48 AM
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JR 368 bb mg
Are the JR 368 bb mg good for q500 (Nelson/Jett)? They are rated at at 52 oz at 4.8. Rather small but only .8 oz in weight.
I am sure they fit the torque requirement but is the 2 screw mount solid enough compared to 4 screws as far as flexing and such? If not, what is the servo of choice these days (JR)?
Thanks
I am sure they fit the torque requirement but is the 2 screw mount solid enough compared to 4 screws as far as flexing and such? If not, what is the servo of choice these days (JR)?
Thanks
12-04-2007, 01:38 PM
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RE: JR 368 bb mg
JR 3121 is the main JR servo the sponsored guys are using.
I've used the 368's and they have been fine, but I remember others reporting issues with that servo.
I've used the 368's and they have been fine, but I remember others reporting issues with that servo.
12-05-2007, 12:17 AM
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RE: JR 368 bb mg
JR servos are "top shelf" however I avoid their Sport Series like the plague.
I have hundreds of aggressive high rate flights on a Viper with Hitec HS 225 MG’s no problems and still very tight. I even have them on a 40 size high wing Dragon. They use four mounting screws. Note! If you bumped a control surface hard or crashed, inspect the inside top of the gear case at the bosses that hold the small gear shafts for break outs. Do this even if it feels fine under load. It’s the only weak point I know of.
HS-225MG BB Micro Servo Specifications:
• Bearing Type: Top Ball Bearing
• Torque @ 4.8v: 55oz\in (3.9kg\cm)
• Torque @ 6.0v: 67oz\in (4.8kg\cm)
• Speed @ 60 degrees @ 4.8v: 0.14
• Speed @ 60 degrees @ 6.0v: 0.11
• Standard Size L x W x H: 1.3" x 0.7" x 1.3 " (33mm x 18mm x 33mm)
• Weight: 0.98oz (32 g)
I have hundreds of aggressive high rate flights on a Viper with Hitec HS 225 MG’s no problems and still very tight. I even have them on a 40 size high wing Dragon. They use four mounting screws. Note! If you bumped a control surface hard or crashed, inspect the inside top of the gear case at the bosses that hold the small gear shafts for break outs. Do this even if it feels fine under load. It’s the only weak point I know of.
HS-225MG BB Micro Servo Specifications:
• Bearing Type: Top Ball Bearing
• Torque @ 4.8v: 55oz\in (3.9kg\cm)
• Torque @ 6.0v: 67oz\in (4.8kg\cm)
• Speed @ 60 degrees @ 4.8v: 0.14
• Speed @ 60 degrees @ 6.0v: 0.11
• Standard Size L x W x H: 1.3" x 0.7" x 1.3 " (33mm x 18mm x 33mm)
• Weight: 0.98oz (32 g)
