O-RING TOLERANZES

Product catalog summary

Overview: The document provides guidelines for O-ring tolerances according to DIN ISO 3601-1:2013-11, Class B. It details specifications for various O-ring sizes, including inner diameter, cord size, and their respective tolerances.

Specifications:

Inner Diameter (d1): O-ring sizes range from 0.74 mm to 393.07 mm in inner diameter.
Cord Size (d2): Cord sizes are specified with tolerances for each size, including common sizes like 1.02 mm, 1.78 mm, 2.62 mm, 3.53 mm, 5.33 mm, and 6.99 mm.
Tolerances: Tolerances are provided in millimeters, varying with the O-ring size.

Key Observations:

O-rings are identified by size numbers, each with specific dimensions and tolerances.
Inactive size ranges are noted, indicating some sizes are not in use.
Larger O-rings have increased tolerances, reflecting the need for precision in larger components.

Conclusion: The document is a comprehensive guide for manufacturers and engineers to ensure O-rings meet specified tolerances, ensuring reliability and performance in sealing applications.

Additional Specifications:
The document includes measurements and tolerances for components related to O-rings, with entries like '405.26 × 6.99' indicating a base measurement and tolerance range.

Recommended Tolerances:
For non-standardized O-ring sizes, classified as class B, recommended tolerances are:

Cord size 0.8 mm to 2.25 mm: ±0.08 mm
Cord size >2.25 mm to 3.15 mm: ±0.09 mm
Cord size >3.15 mm to 4.5 mm: ±0.10 mm
Cord size >4.5 mm to 6.3 mm: ±0.13 mm
Cord size >6.3 mm to 8.4 mm: ±0.15 mm

Contact Information:
Further details can be found at www.fst.com and dichtomatik.fst.com.

Catalog excerpts

O-Ring Tolerances O-RING TOLERANZES ACCORDING TO DIN ISO 3601-1:2013-11 (CLASS B) FREUDENBERC INNOVATING TOGETHER

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