Bevel gear servo gearbox K-EZ right-angle type

Bevel gearbox K with electric synchronous motor, EZ. servo motor. Right-angle servo gearboxes with a power range of 0.29 – 31.0 kW. Gear ratios from 4:1 to 381:1. Maximum torque: 23 – 13,200 Nm. Backlash: 10 – 12 arcmin, reduced backlash: 1.5 – 5.0 arcmin. Efficiency: 94 – 97%. Optionally equipped with resolver, up to 2 brakes, fan, single-cable servo motor with EnDat 3.0 encoder, and rack-and-pinion drive ZV-K-EZ. Delivered complete with servo drives SB6, SD6, SC6, SI6.

K-EZ Right-Angle Bevel Gear Servo Gearbox

Features of K-EZ Bevel Gear Servo Gearboxes

• Highly rigid right-angle servo drive with worm gearbox, no adapter or coupling required.

• Backlash options: Standard or reduced, ranging from 1.5 – 12 arcmin.

• Precision: Fractional gear ratios ensure no positioning errors.

• Maintenance-free: No oil changes or maintenance required for sizes K1 – K4.

• Quiet operation: Helical gears for smooth running.

• High torsional stiffness.

• Continuous operation without additional cooling.

• Radial shaft seals: FKM on input / NBR on output.

• Output shaft bearing: Standard or reinforced.

• Rigid output bearing due to preload.

• Ambient temperature: 0°C to 40°C (other ranges available on request).

• Maximum gearbox housing temperature: ≤ 80°C.

• Protection class: IP65, optionally IP66.

• Oil quantity depends on mounting position (specify when inquiring or ordering).

• Optional: Oil compensation tank for vertical mounting position EL5.

• Ready for operation, filled with synthetic gear oil type CLP HC ISO VG 150.

• One coat of primer paint in RAL7001 or RAL9005.

• Optional: Clamping ring cover or through-shaft with keyway.

• For sizes K5 – K10: Venting valves are installed as standard depending on mounting position.

Output Shaft Types of K-EZ Bevel Gear Servo Gearboxes

• G – Solid smooth shaft

• V – Solid shaft with key

• V2 – Solid shaft with key on both sides

• A – Hollow shaft with keyway

• S – Hollow smooth shaft with clamping ring and cover

Mounting Options for K-EZ Bevel Gear Servo Gearboxes

• G – Threaded holes

• N – Foot mounting

• F – Round flange

• D – Torque arm

Features of EZ Servo Motors

• Brushless electric motors with permanent magnet excitation and electronic commutation, available in various performance profiles.

• Various output shaft options: solid shaft with keyway, solid smooth shaft.

• Absolute encoders or resolvers: optical or inductive EnDat encoders.

• Homing elimination with multiturn absolute encoders (optional).

• One Cable Solution (OCS) with EnDat® 3.0 encoder (optional).

• Advanced safety functions possible (up to SIL 2 / Category 3, PL d).

• Electronic nameplate for fast and reliable commissioning.

• Rotatable plug connectors for power and encoder, freely rotatable.

• Fourfold peak torque.

• Ambient temperature range: –15 to +40 °C.

• Protection class: IP56, optionally IP66.

• Thermal class: F (155 °C).

• Rolling bearings with lifetime lubrication and non-contact sealing.

• Shaft seals made of FKM.

• Radial runout, concentricity, and axial runout within tolerance classes according to IEC 60072-1.

• Vibration intensity A according to EN 60034-14.

• Noise level according to EN 60034-9.

• Three-phase winding.

• Rotatable plug connectors with quick-lock mechanism.

• Thermal protection of servo motor windings via PTC thermistor or PT1000 temperature sensor.

• Optional backlash-free holding brake 24 V DC.

• Cooling: convection (U) or forced ventilation with fan (B).

• External fan for increased torque and continuous power or higher ambient temperatures.

• Intermediate circuit voltage: DC 540 V (max. 750 V) for STÖBER servo drives.

• Certifications: CE, cURus.

Encoders for K-EZ Bevel Gear Servo Gearboxes

• Optical / inductive absolute encoders

• Singleturn / Multiturn absolute encoders

• EnDat® 2.1 / EnDat® 2.2 / single-cable EnDat® 3.0 encoders (optional)

• Resolvers

Compatibility of K-EZ Bevel Gear Servo Gearboxes with STÖBER Servo Drives

• Single-axis SB6,
• Dual-axis SC6,
• Multi-axis SI6 
• Freely configurable SD6

Compatibility with Third-Party Servo Drives

• Allen-Bradley: AB Kinetix 6500

• Beckhoff: AX5000

• Bosch Rexroth: IndraDrive C

• B&R: Acopos Multi

• Kollmorgen: Servostar S300-700 / Seidel / Danaher

• Siemens: Sinamics S120