Planetary Gearbox

Understanding Planetary Gearboxes (Epicyclic Gear Trains)

A planetary gearbox, also known as an epicyclic gearbox, features a unique gear arrangement consisting of a central 'sun' gear, multiple 'planet' gears revolving around the sun gear, a 'planet carrier' holding the planet gears, and an outer 'ring' gear (annulus) with internal teeth that meshes with the planets. This configuration offers several significant advantages:

Key Advantages:

• High Torque Density: The load is shared among multiple planet gears, allowing the gearbox to handle significantly higher torque relative to its size compared to other gearbox types. Essential for high-torque-gearbox requirements.
• Compactness: The inline, coaxial arrangement of input and output shafts and the efficient gear layout result in a very compact gear reducer package.
• High Reduction Ratios: Significant speed reduction can be achieved in a single stage, and multi-stage designs allow for extremely high overall ratios.
• Coaxial Alignment: Input and output shafts are aligned on the same axis, simplifying machine design and integration.
• High Efficiency: Planetary gear trains generally offer high transmission efficiency due to rolling contact and load distribution.
• Load Sharing: Multiple planet gears distribute the load evenly, increasing durability and operational life.

Operational Principle:

Typically, the sun gear is the input, the ring gear is held stationary, and the planet carrier provides the output, resulting in speed reduction and torque increase. However, different configurations are possible by fixing or driving different components to achieve varied outputs.

Shreeji Gears: Your Expert Planetary Gearbox Manufacturer

As a dedicated industrial-gearbox-india provider, Shreeji Gears possesses the engineering know-how and manufacturing precision required for reliable planetary gearboxes.

Why Choose Shreeji Gears for Planetary Gearboxes?

• Precision Component Manufacturing: Expertise in high-precision cutting and grinding of sun gears, planet gears, and internal ring gears from hardened alloy steels.
• Robust Carrier Design: Manufacturing durable planet carriers to withstand high torque loads and ensure proper gear alignment.
• Optimized Bearing Selection: Incorporating high-quality bearings to handle radial and axial loads generated during operation, ensuring smooth running and long life.
• Advanced Assembly & Testing: Meticulous assembly procedures and rigorous testing for backlash, noise levels, efficiency, and load capacity.
• Material Excellence: Utilizing appropriate high-strength, heat-treated alloy steels for gears and robust materials like Cast Iron or fabricated steel for housings.
• Customization Capabilities: Offering custom planetary drive solutions including specific ratios, number of stages, input/output shaft configurations (splined, keyed, hollow), mounting options (flange, foot), and sealing for various environments.
• Diverse Applications: Providing planetary gearboxes for robotics-gearbox needs, conveyor drives, machine tool spindles, wind turbine yaw/pitch drives, construction equipment drives, and automation systems.

General Technical Specifications (Customizable):

• Reduction Ratios: Wide range available, typically 3:1 to 10:1 per stage (higher ratios with multi-stage designs).
• Number of Stages: Single, Double, Triple, or more stages available.
• Torque Ratings: From light-duty to very high torque capacities (Contact us with requirements).
• Input Options: Motor flange adaptors (IEC, NEMA), solid input shaft.
• Output Options: Solid keyed shaft, splined shaft, hollow shaft (keyed, shrink disc).
• Mounting: Flange mount, Foot mount.
• Materials: Gears (Hardened Alloy Steel), Housing (Cast Iron, Steel), Carrier (Steel, SG Iron).
• Lubrication: Grease or Oil lubrication options.
• Sealing: Options for standard or harsh environments.

Maximize torque in minimal space with advanced epicyclic gearbox technology. Choose Shreeji Gears, your expert planetary gearbox manufacturer in Ahmedabad. Contact us today to discuss your specific high-torque and compact gear reducer needs!