Overview
This document from Fritz Hopf GmbH details specifications, dimensions, and applications for SPN tooth racks and gear pinion sets, focusing on precision mechanical components used in positioning drives and gear systems.

1. Product Types and Applications

• SPN Tooth Racks: Various types (Z010, Z012, Z111, Z112, Z011, Z030) with helical or straight tooth systems per DIN 867.
• Gear Pinion Sets: Types RC and U4 designed to complement the racks for integrated drive solutions.
• Application Example: Positioning drives illustrating precision and modularity.

2. Technical Specifications

• Tooth Systems: Helical (left/right-handed) and straight teeth; helix angle standardized at 19°31'42".
• Materials: Steels 16MnCr5 and C45K with induction hardened teeth (53 ± 2 HRC or 60 ± 2 HRC).
• Dimensions: Detailed tables with module sizes, lengths, widths, tooth heights, all in millimeters.
• Quality and Tolerances: Adjacent pitch errors (Fp/fp) and total pitch deviations specified for precise gear meshing.
• Surface Treatment: Hardened and ground teeth and contact surfaces for enhanced performance.

3. Gear and Pinion Data

• Helical toothed pinions, hardened and ground, with order codes and dimensions.
• Torque and force ratings including nominal torque (T2N), max acceleration torque (T2B), and tangential force (F2) for various gear ratios.
• Interface compatibility with EN ISO 9409-1 mounting standards.

4. Assembly and Customization

• Use of assembly jigs recommended for aligning rack transitions ensuring continuous mounting.
• Custom solutions available upon request.

5. Summary of Key Parameters

• Modules: Range from 2 to 4 with corresponding tooth counts and rack lengths.
• Material Hardness: Induction hardened teeth between 53 and 60 HRC.
• Helix Angle: Standard 19°31'42" for helical gears.
• Dimensions: Includes lengths (L1, L2), widths (b), tooth heights (hk, ho), and diameters (d1 to d7).
• Torque Ratings: Nominal and max acceleration torques provided for design calculations.

6. Standards and Norms

• All tooth systems comply with DIN 867.
• Interface dimensions conform to EN ISO 9409-1 where applicable.

7. Recommendations and Notes

• Assembly jigs are critical for continuous rack mounting to maintain precision.
• Contact Fritz Hopf GmbH for special designs or modifications beyond standard catalog.
• All dimensions are in millimeters and subject to change without notice.

Technical Specifications Table Summary
The document includes a detailed table listing order codes with corresponding parameters:

• Modules: 2, 3, and 4
• Lengths (L1): Ranging from ~500 mm to over 2000 mm
• Number of Teeth (z): From 40 up to 1318 depending on module and length
• Widths (b): 20 mm to 40 mm
• Tooth Heights (hk, ho): Varying by module
• Adjacent Pitch Error (Fp/fp): Typically between 0.036 and 0.200 mm
• Weights: From 1.4 kg to 22.6 kg depending on size

Manufacturer and Contact Information
Fritz Hopf GmbH, Schwaben Präzision, Nördlingen, Germany
Address: Glashütter Straße 2-6, 86720 Nördlingen
Phone: +49 (0) 90 81 21 40
Fax: +49 (0) 90 81 21 41 11
Website: www.spn-hopf.de
Email: [email protected]
Nearby cities: Munich (110 km), Nuremberg (100 km), Stuttgart (110 km)

Conclusion
This document is a comprehensive technical reference for engineers and designers selecting SPN tooth racks and gear pinion sets, providing essential data on dimensions, materials, tolerances, and assembly practices to ensure optimal performance and compatibility.