Bevel servo drive with 2 brakes K-MB-EZ

Right-angle bevel gearbox with a servo motor, encoder, and two ServoSTOP safety brakes. Power range: 1.5 – 19.0 kW. Gear ratios from 4:1 to 97:1. Maximum brake torque: 8 – 100 Nm. Maximum gearbox torque: 62 – 7,700 Nm. Rotational backlash: 1.5 – 12 arcmin. Efficiency: 96 – 97%. The servogearmotor is optionally available with reduced backlash, resolver, fan, and brake release. Supplied as a complete Stober servo drive system with motion controller, cables, and resistor.

K-MB-EZ Bevel Servo Drive with 2 Brakes

K Series Bevel Gearboxes

• Precision gearboxes with a choice of standard or reduced backlash.
• Fractional gear ratios eliminate positioning errors.
• Low-noise operation thanks to helical gearing.
• Maintenance-free, with no oil changes required.
• Lubricated for the entire service life.
• Mounting position to be specified when ordering.
• Ambient temperature range: 0°C to 40°C (other temperature ranges available on request).
• Filled with synthetic grease CLP HC ISO VG 150.
• Optional mineral oil for use in the food, beverage, and pharmaceutical industries.
• Maximum permissible gearbox temperature (measured on the gearbox surface): ≤ 80°C.
• Protection class IP65, optionally IP66.
• Standard gearbox output seal made of NBR, optionally FKM.
• For duty cycles > 60% and higher ambient temperatures, FKM radial shaft seals on the output are recommended.
• Reinforced output bearing for K5 to K8 gearboxes.
• Cast iron gearbox housing.
• Direct mounting of STOBER EZ/LM series servo motors without an adapter, coupling, or double brake.
• Standard finish: black RAL 9005 paint (other colors available on request).

Output Shaft Versions for K Series Right-Angle Bevel Gearboxes

• A – Hollow shaft with keyway (optional cover).
• V – Solid shaft with key.
• V2 – Double-ended solid shaft with keys on both sides.
• S – Smooth hollow shaft with shrink disc (optional cover).

Mounting Options for K Series Right-Angle Bevel Gearboxes

• G – Threaded holes
• N – Foot-mounted
• F – Round flange
• D – Torque arm (reaction arm)

Servo Motor Adapter (MB) with ServoSTOP Brake

• The spring-applied brake is integrated into the motor adapter.
• Functions as a holding brake.
• Provides braking from full speed, for example in the event of a power failure or emergency stop in hazardous situations.
• Can operate as a single brake or in combination with the motor brake as a redundant braking system.
• Electrically actuated for dry operation.
• Equipped with a backlash-free plug-in coupling (jaw coupling), allowing easy motor removal while the axis remains braked in any position.
• Electrical release monitoring in the terminal box via a contactless, wear-free proximity switch.
• Manual wear monitoring by checking the air gap with a feeler gauge.
• FKM radial shaft seals with dual sealing lips.
• Four oil drain holes protect the brakes against oil contamination in the event of leakage.
• Differential-redundant system compliant with EN ISO 13849-1.
• Electrical connection as standard via a terminal box; optionally available with a plug connector (not possible in combination with release monitoring).
• In the de-energized state, braking is achieved by spring force.
• Released by a DC electromagnetic coil before motor start-up.
• Motor connectors or the motor adapter terminal box/plug connector are mounted in the 270° position.
• Combined with the motor brake, it provides a dual-brake solution with exceptionally compact dimensions.

EZ Servo Motors

• Permanent magnet synchronous electric motors.
• Rotatable plug connectors with quick-lock mechanism.
• Operating ambient temperature range: -15°C to +40°C.
• Protection class IP56.
• Temperature class F (155°C).
• Electronic nameplate for rapid identification of servo motor parameters.
• Rolling-element bearings with lifetime lubrication and non-contact sealing.
• FKM (VITON) radial shaft seals.
• Radial and axial runout as standard in accordance with IEC 60072-1 tolerance classes.
• Permissible noise levels in accordance with EN 60034-9.
• Not suitable for use in hazardous (explosive) atmospheres.
• CE and UKCA certified, optionally cURus certified.
• Integrated PTC thermistor.
• Black finish, RAL 9005.

Feedback Systems for EZ Servo Motors

• Resolvers.
• EnDAT 2.1 / 2.2 absolute encoders.
• Inductive and optical encoders.
• Multiturn and Singleturn versions.
• OCS single-cable solution with EnDat 3.0 absolute encoder (EQI 1131) for cable lengths up to 100 m.
• No homing required when using Multiturn absolute encoders.

Compatibility of EZ Servo Motors with Servo Drives

• STOBER single-axis drives: SB6, SD6.
• STOBER dual-axis drives: SC6.
• STOBER multi-axis drives: SI6.
• B&R Acopos.
• Beckhoff AX5000.
• Kollmorgen AKD, S300, S400, and S600.
• Siemens Sinamics S120.
• Bosch Rexroth servo drive systems.
• Allen-Bradley servo drive systems.