Helical gear gear reducer Z

parallel-shaftsolid-shafthollow-shaft

Overview
Parallel shaft gearboxes (Z series) are designed for medium‑to‑heavy industrial applications requiring high radial and axial load capacity. They are suitable for heavy-duty equipment such as agitators, stone crushers, plastic extruders, bucket lifters, molds, fans and similar machinery.

Series
Series Z: available in six sizes with a single reduction stage, six sizes with two reduction stages and six sizes with three reduction stages.

Product details

• Power: up to 270 kW
• Reduction range: 5 to 250
• Torque range (T2M): 180 to 11,500 Nm

Inputs and construction
Two input options: projecting input shaft or pre-engineered motor coupling (bell and joint). Housing materials: engineering cast iron for sizes 71, 90, 112, 125, 140, 160, 180; spheroidal graphite cast iron for sizes 200 and 225. High-quality tapered roller bearings on all shafts ensure long service life and high resistance to external radial and axial loads.

Accessories

• Output shaft
• Mounting and dismounting kit for hollow output shaft
• Hollow output shaft with shrink disc
• Output flange
• Torque arm
• Hollow shaft protection kit
• Backstop device

Spare parts & documentation
Complete spare parts list and details are available in the technical catalogue "HELICAL AND BEVEL HELICAL GEARBOXES".

Configuration & visuals
3D configuration manager and dynamic selection tools are available for generating 3D CAD models and selecting dimensional and applicative parameters. Configuration images (torque ranges and input types) are provided in the product configuration section.

Technical specifications

• Series: Z series
• Power (max): 270 kW
• Reduction range: 5 ÷ 250
• Torque range (T2M): 180 ÷ 11,500 Nm
• Available reduction stages: single, two-stage, three-stage (each in six sizes)
• Input types: projecting input shaft; pre-engineered motor coupling (bell and joint)
• Housing materials: engineering cast iron (sizes 71–180); spheroidal graphite cast iron (sizes 200–225)
• Bearings: tapered roller bearings on all shafts for high radial and axial load capacity
• Typical applications: agitators, stone crushers, plastic extruders, bucket lifters, molds, fans, packaging/automation and other medium‑heavy industrial uses
• Available accessories: output shaft; mounting/dismounting kit (hollow output shaft); hollow output shaft with shrink disc; output flange; torque arm; hollow shaft protection kit; backstop device