ZV-K-ME bevel rack and pinion drive

Modular rack and pinion with K right-angle bevel gearbox, adapter and coupling matched to the servo motor. Pinion modules 2 – 4. Number of teeth 18 – 25. Max. feed forces 2.7 – 16.0 kN. Linear speeds 0.6 – 3.8 m/s. Linear backlash 0.012 – 0.111 mm. Pinion quality class 6. Optionally with reduced linear backlash, safety brake, servo motor or ZV-K-EZ rack servo drive servo drive.

ZV-K-ME bevel rack and pinion drive

Properties of ZV-K-ME Rack and pinion drives

• Right-angle servo gearboxes with modular rack and pinion and electric motor adapter
• Modular helical gears,
• Case-hardened and finished, quality class 6
• Precision gearboxes with low rotational backlash of 5-6 arcminutes
• Precise linear feeds at the level of 12 – 112 μm
• High linear speeds up to max. 3.8 m/s.
• Ratio expressed as a fraction – no positioning errors.
• Low-noise operation – helical gearing.
• Maintenance-free – no oil change required.
• Lubricated for the entire service life.
• Operating position to be specified when ordering.
• Various gearbox mounting options: G: threaded holes, N: mounting feet
• Ambient temperature from 0 °C to 40 °C (other temperature range available upon request).
• Gearboxes are standardly filled with CLP HC ISO VG 150 synthetic lubricant
• Maximum permissible gearbox temperature (on the gearbox surface) ≤ 80 °C.
• Protection class IP65
• Output gearbox sealing standard NBR
• For duty cycles > 60% and higher ambient temperatures, we recommend radial shaft sealing rings made of FKM at the output.
• Cast iron gearbox housing.
• Standardly painted black RAL9005

Optional versions of ZV-K-ME Rack Drives

• Reduced linear backlash
• Reinforced bearing for large sizes from K5
• FKM Viton sealing at the gearbox input and output
• Protection class IP66
• Mineral oil for use in the food, pharmaceutical and other industries
• Oil expansion tank for vertical operating position EL5
• For duty cycles > 60% and higher ambient temperatures, we recommend radial shaft sealing rings made of FKM at the output.
• Special colours and painting
• Indirectly with EZ / LM servo motor from Stober via adapter
• Directly with servo motor without adapter and coupling, i.e. ZV-KL-EZ rack servo drive
• Safety brake in the adapter of the ZV-K-EZ bevel gearbox

Modular Pinions of ZV-KL-MQ Rack Drives

• Gear quality class 6 according to DIN3962
• Helical gearing, case-hardened and ground (left-hand 19° 31′ 42″).
• Backlash-free shaft-hub connection, shrink-bonded and secured with a key
• The corresponding rack must have a right-hand design (19° 31′ 42″), minimum quality class 8, induction-hardened C45 material
• Lubrication is the customer’s responsibility; we recommend high-quality synthetic oil-based lubricants, NLGI 0 class
• Two pinion mounting positions available: (E) gearing at the end of the output shaft, (S) gearing directly next to the gearbox, providing higher permissible feed forces.

Modular Racks ZS of ZV-KL-MQ Rack Drives

• precision, with helical gearing
• gear quality class 6 according to DIN 3962-1,
• helical teeth, hardened and ground
• modules in sizes 2 – 6
• double number of mounting holes every 62.5 mm
• max. feed force 12.6 to 83.1 kN
• three length groups 500, 1000 and 2000 mm

Motor Adapter for ZV-K-ME Right-Angle Rack Drives

• Quick and easy mounting of any servo motor.
• One-piece, robust clamping coupling with expansion function.
• Lowest mass moments of inertia for the highest operating dynamics.
• Balanced for quiet, vibration-free operation, even at high speeds.
• Wide range of motor shaft diameters and lengths to choose from.
• Fault-free fitting thanks to precise motor centering.
• The motor can be removed in any position.
• Double adapter sealing for large gearbox models.
• Optionally without adapter and coupling – direct installation of EZ or LM servo motor.
• To reduce backlash, the motor shaft bearing must have an axially backlash-free design.

EasyAdapt (ME/MEL)

• One-piece, robust clamping coupling with expansion function.

FlexiAdapt (MF):

• Robust, laser-welded bellows coupling with expansion function.
• With integrated thermal length compensation, compensates for the linear expansion of the motor shaft.
• Motor shaft separated from the

ServoStop servo motor adapter with safety brake (MB)

Examples of Applications of ZV-K-EZ Right-Angle Rack Drives

• gantry milling machines
• horizontal machining centers
• laser cutting
• tube bending
• sheet metal bending machines
• 7th robotic axis
• vertical rotary table
• horizontal rotary table
• CNC welding machines, CNC machine tools, CNC lathes, CNC milling machines