Determine the for a specific chemical or temperature Find troubleshooting steps for a leaking rotary seal Which of these would be most helpful for your project? Share public link
Broad temperature extremes, low friction needs; poor dry-running capability. 4. Technical Design Considerations
Same as Type B, but features an additional dust lip for external contaminant exclusion. Type C: Reinforced Metal Outer Diameter
The operating limits of a DIN 3760 seal depend heavily on the elastomeric compound chosen. The standard accommodates several key materials: Material Type Common Abbreviation Temperature Range Best Suited For -30°C to +100°C General engineering, mineral oils, hydraulic fluids. Fluorocarbon Rubber FMC / FKM (Viton) -20°C to +200°C High temperatures, chemicals, synthetic lubricants. Polyacrylate Rubber -25°C to +150°C Automotive gearboxes, engine oils, transmission fluids. Silicone Rubber -50°C to +150°C Extreme thermal variance, low load applications. Shaft and Housing Design Requirements
Ultimate Guide to DIN 3760 Rotary Shaft Seals: Specifications, Forms, and Engineering Best Practices din 3760 pdf
High-temperature environments, synthetic oils, aggressive chemicals, and high shaft speeds.
A key feature is the between the shaft and housing bore, which prevents premature seal failure.
The performance of a DIN 3760 seal heavily depends on its elastomeric material. The standard specifies requirements for materials, with the most common being:
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) at normal shaft speeds. Specialty pressure-resisting profiles are required for higher demands.
A standard smooth outer diameter version for basic fluid retention.
: Hardness of at least 45 HRC is required (increasing to 60 HRC at higher speeds) with a surface roughness of Racap R sub a 0.2 to 0.8 µm. 2. Standard Design Forms
Material selection directly affects the seal’s temperature range, chemical resistance, and lifespan. The standard references several common elastomers: Elastomer Material Abbreviation Temperature Range Best Used For -30°C to +100°C General engineering, mineral oils, grease Fluorocarbon Rubber FKM / Viton -20°C to +200°C High temperatures, chemicals, synthetic oils Polyacrylate Rubber -25°C to +150°C Transmission fluids, automotive engine oils Silicone Rubber -55°C to +150°C Extreme thermal ranges, low friction needs Standard Dimensions and Nomenclature Technical Design Considerations Same as Type B, but
DIN 3760 is a widely accepted standard in the industry for radial shaft seals used in rotating equipment, such as pumps, gearboxes, and motors. The standard specifies the design, materials, and testing requirements for radial shaft seals to ensure their performance, reliability, and durability.
The DIN 3760 standard provides a comprehensive framework for the design, manufacture, and testing of radial shaft seals. By complying with this standard, manufacturers and users can ensure reliable sealing performance, improved equipment uptime, and reduced maintenance costs. Download the DIN 3760 PDF from authorized sources to access the full content of the standard.
Complying with the DIN 3760 standard offers several benefits, including:
When reading a part number or a datasheet, look for this marking pattern on the seal itself (as required by the standard):
: The standard outlines the performance requirements and testing methods for radial shaft seals. By referring to the DIN 3760 PDF, manufacturers can ensure that their products meet the necessary quality and performance standards.