DSSERVO BLS3375 IP67 All-Metal Brushless Digital Servo, 75kg Class

Description

DSSERVO BLS3375 IP67 is an all-metal brushless digital servo marketed in the 75 kg class for RC steering and robotics. The supplied BLS3375 electrical table lists 75 kg·cm stall torque at 7.4 V and 82 kg·cm at 8.4 V, with a no-load speed of 0.11 sec/60° at 8.4 V.

Torque, speed and current by voltage

Stall torque and current describe a locked shaft. They are not continuous-load ratings. The product label states 5–8.4 V; the table also contains a 4.8 V test column. Use the label’s 5–8.4 V range unless DSSERVO confirms a wider operating range. At 8.4 V, the table lists 8 A stall current. Select a BEC or regulated supply and wiring capable of the expected peak load.

All-metal case, brushless motor and IP67

The supplied product artwork identifies an all-metal brushless servo with steel gears. The IP67 marking belongs to this servo variant. Protect the connector and the complete installation according to their own ratings. This listing covers the IP67 version; a separate supplier product is offered for submerged operation.

PWM control and wiring

The control table lists PWM position control, a 500–2500 µs pulse range, 1500 µs neutral position, 2 µs deadband and a 50–330 Hz operating frequency. It shows 180° or 270° travel options and counterclockwise rotation over the stated pulse range. The exact angle option must match the delivered servo configuration.

The supplied wiring graphic shows a JR-style 3-pin, 2.54 mm connector. Ground is brown or black, positive supply is red, and signal is orange or white in the pictured cable versions. Confirm connector polarity before powering the servo. The 3.3–5 V value in the PWM diagram refers to the signal level.

Mounting and installation

The supplied drawing shows a 40 × 20 mm body footprint, a 54.5 mm overall mounting-tab span and a 49.5 mm mounting reference. Case-height and net-weight figures differ across the supplier materials. Confirm those two measurements with DSSERVO before a close-fit installation or weight-sensitive build.

Fit the horn and linkage without distorting the case. Check direction and travel with the linkage unloaded, then set endpoints to avoid binding or forcing the output against a mechanical stop.

Package contents

The supplier quote lists one BLS3375 digital metal servo, one 25T adjustable metal servo arm and an accessory set as pictured. Confirm the exact accessory quantity if a particular horn or fastener is essential to the installation.

Frequently asked questions

Why is it called 75kg when the table lists 82 kg·cm? The supplied table lists 75 kg·cm at 7.4 V and 82 kg·cm at 8.4 V. The 75kg marking identifies the product class.

Which control angle is supplied? The artwork shows 180° and 270° options. Confirm the selected configuration before ordering.

Can I operate it submerged at a depth of 5 metres? The supplied IP67 artwork does not establish a 5-metre operating-depth rating. Select the separately specified submersible variant if that is required.