HobbyStar HCS-4521 High-Torque Digital Waterproof Crawler Servo

The HobbyStar HCS-4521WP servo features a fully waterproof design and massive-torque (444oz/in @7.4V) for the ultimate crawler servo. All-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength this is a perfect servo for crawling rig. 

Specifications:

• Speed @4.8V: 0.16 sec
• Speed @6.0V: 0.13 sec
• Speed @7.4V: 0.10 sec
• Torque @4.8V: 287 oz/in
• Torque @6.0V: 347 oz/in
• Torque @7.4V: 444 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 40.5x20x37.5mm
• Weight: 58g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Coreless
• Input Voltage: 4.8V-7.4V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm