Standard Series 2B20 Internal Gear Technical Specifications

This document provides detailed technical specifications for the Standard Series 2B20 internal gear, including dimensional parameters, weights, and mechanical features essential for design and manufacturing.

1. Dimensional Specifications

• Weight (kg): 130
• Outer Diameter (mm): 850
• Outer Ring Outer Diameter (mm): 848
• Outer Ring Inner Diameter (mm): 765
• Inner Ring Outer Diameter (mm): 761
• Inner Ring Inner Diameter (mm): 640
• Ball Track Diameter (mm): 763
• External Bolt Circle Diameter (Outer Ring) (mm): 820
• External Bolt Circle Diameter (Inner Ring) (mm): 705
• External Hole Diameter (Outer Ring) (mm): 17
• Internal Hole Diameter (Inner Ring) (mm): 17
• Thread Depth (mm): 36
• Number of Bolt Holes (Outer Ring): 8
• Number of Bolt Holes (Inner Ring): 81
• Ring Heights (Outer and Inner): 83 mm each
• Overall Height (mm): 93
• Module: 8
• Number of Teeth: 81

2. Mechanical Features and Parameters

The gear includes specifications for both outer and inner rings, with detailed diameters for bolt circles and hole sizes, ensuring compatibility with mounting and assembly requirements. Thread depth and bolt hole counts are critical for secure fastening and load distribution.

3. Key Design Considerations

• Precise dimensional tolerances are implied for fitting and operational efficiency.
• The module and number of teeth define the gear's mechanical engagement and torque transmission capabilities.
• Ring heights and overall height are important for spatial integration in assemblies.

4. Summary of Critical Parameters

This structured data supports design engineers in selecting and integrating the 2B20 internal gear into mechanical systems, ensuring compliance with dimensional and mechanical requirements.