Cylindrical servo drives C-MB-EZ with 2 ServoSTOP brakes

Cylindrical gearbox C with MB adapter, EZ servo motor, and two STOBER ServoSTOP safety brakes. Servo gearmotors in the power range of 1.5–31.0 kW. Gear ratios from 2:1 to 70:1. Static brake torque 8–100 Nm. Max. torque 31–4,800 Nm. Backlash 10–20 arcmin. Efficiency 97%. Optionally available with fan cooling, single-cable servo motor, and manual brake release. Supplied as a complete servo drive with motion controller.SB6, SD6, SC6, SI6.

Cylindrical servo drives C-MB-EZ with 2 ServoSTOP brakes

C cylindrical gearboxes

• High precision – standard low backlash
• Fractional gear ratio – no positioning errors
• Quiet operation – helical gears
• Maintenance-free – no oil changes required
• Lubricated for lifetime operation
• Mounting position defined at order
• Output shaft: solid keyed shaft
• Ambient temperature: 0°C to 40°C (other ranges on request)
• Filled with synthetic grease CLP HC ISO VG 150
• Mineral oil for food, beverage, and pharmaceutical industries available on request
• Max. permissible gearbox temperature (housing surface) ≤ 80°C
• Protection class IP65, optionally IP66
• Output shaft sealing: standard NBR, optional FKM
• For duty cycles > 60% and higher ambient temperatures, FKM radial shaft seals are recommended at the output
• Gear housing made of cast iron
• Standard paint: black RAL9005 (other colors on request)

Mounting options for C cylindrical gearboxes

• G: threaded holes
• N: foot mounting
• F: round flange
• Q: square flange

Servo motor adapter (MB) with ServoSTOP brake

• The spring-applied brake is integrated into the motor adapter

• Functions as a holding brake

• Enables braking from full speed, e.g. in case of voltage loss or emergency shutdown in hazardous situations

• Can operate as a single brake or combined with the motor brake as a redundant braking system

• Electrically actuated for dry-running operation

• Backlash-free plug-in coupling (jaw coupling), enabling easy motor removal with the braked axis in any position

• Electrical release monitoring in the terminal box via a contactless, wear-resistant proximity switch

• Manual wear inspection by measuring the air gap using a feeler gauge

• Radial shaft seals made of FKM with double sealing lips

• Four oil drain ports protecting the brake from oil contamination in case of leakage

• Differential redundant system compliant with EN ISO 13849-1

• Electrical connection as standard in a terminal box, optionally via plug connector (not possible with release monitoring)

• In de-energized state, braking is achieved by spring force

• Released by a DC electromagnetic coil before motor start

• Motor plug connectors or motor adapter terminal box/connector positioned at 270°

• Together with the motor brake, this provides a dual-brake solution with exceptionally compact dimensions

EZ servo motors

• Permanent magnet synchronous electric motors

• Rotatable plug connectors with quick-lock system

• Ambient operating temperature: -15°C to +40°C

• Protection class IP56

• Temperature class F (155°C)

• Electronic nameplate for fast identification of servo motor parameters

• Rolling bearings with lifetime lubrication and non-contact sealing

• Radial shaft seals made of FKM VITON

• Radial and axial runout according to IEC 60072-1 tolerance class

• Noise levels compliant with EN 60034-9

• Not suitable for use in explosive atmospheres

• Certifications: CE, UKCA, optional cURus

• Integrated PTC thermistor

• Color: black (RAL9005)

Feedback systems in EZ servo motors

• Resolvers

• Absolute encoders EnDAT 2.1 / 2.2

• Inductive / optical encoders

• Multiturn / singleturn

• Single-cable OCS solution with EnDat 3.0 absolute encoder (EQI 1131), max cable length 100 m

• No referencing required for multiturn absolute encoders

Compatibility with servo drives

• STOBER: single-axis SB6, SD6; dual-axis SC6; multi-axis SI6

• B&R ACOPOS

• Beckhoff AX5000

• Kollmorgen AKD, S300, S400, S600

• Siemens SINAMICS S120

• Bosch Rexroth

• Allen-Bradley