Overview: This document outlines specifications and guidelines for mechanical components such as master gears, pawls and ratchets,
gear couplings, and involute spline shafts and bushings. It includes technical specifications, material details, and usage recommendations.
Master Gears: The catalog features various gear types, including spur, helical, and internal gears, identified by catalog numbers based on material type, major diameter, and total length.
Pawls and Ratchets: - Designed for one-way rotational restriction.
- Induction hardened for durability.
- Not suitable for driving ratchets or rotation.
- Manufactured via lost wax casting.
- Custom orders available for specific tooth directions.
Gear Couplings: - Standardized for easy connection/disconnection.
- Induction hardened gear teeth.
- Crowned inner hubs for shaft angle offset.
- Available as sets or individual components.
Involute Spline Shafts & Bushings: - Compliant with JIS D 2001: 1959 standard.
- Thermal refined for abrasion resistance.
- Custom orders for bronze bushings.
- Design considerations include surface strength, torsional, and bending stresses.
Technical Specifications: - Material: S45C with induction hardened teeth.
- Tooth hardness: 45-55 HRC for gear couplings, 225-260 HB for spline shafts.
- Pressure angle: 20°.
- Various catalog numbers for different sizes and applications.
Usage Recommendations: - Ensure proper lubrication for sliding movements.
- Avoid secondary operations on hardened areas.
- Consider safety factors and load types in design.
Specifications:
Precision grade: JIS grade M00 (JIS B 1751)
Gear teeth: Standard full depth
Pressure angle: 20°
Material: SK3
Heat treatment: Vacuum Hardening
Product Overview: KHK Master Gears are high precision gears for meshing test machines, not intended for power transmission. They come with Mashing Pitch Inspection Data and are available in modules from 0.4 to 1, with customizable teeth numbers and pressure angles (14.5°, 20°, and 22.5°).
Ordering Information: Custom orders are accepted, including special specifications like Helical Gears. A lead-time of 20 working days is required for shipping from the factory, with additional delivery time to local distributors.
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