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Rectangular Cross Section Polymeric Sealing Rings

Automatic Transmission and Transaxle Committee
  • Ground Vehicle Standard
  • J2310_201910
  • Current
Published 2019-10-09 by SAE International in United States

The purpose of this SAE Recommended Practice is to establish guidelines for the automatic transmission and hydraulic systems engineer to design rectangular cross section seals for rotating and static grooved shaft applications. Also included are property comparisons of polymeric materials suitable for these applications. Historically, material covered in this document is not intended to include aluminum contact applications.

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HIGH CONFORMANCE SEAL, TYPE I & II STANDARD AND LOW PROFILE

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS1895/23B
  • Current
Published 2019-09-27 by SAE International in United States

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SEAL, TYPE I & II STANDARD AND LOW PROFILE

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS1895/7G
  • Current
Published 2019-09-27 by SAE International in United States

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Development of a Low Friction High Performance Wheel Bearing Seal

ILJIN USA Corporation-Seungpyo Lee
Iljin Bearing GmbH-Reinhold Mahr
Published 2019-09-15 by SAE International in United States
The ever tightening of fuel economy and greenhouse gas emissions standards globally continues to challenge bearing companies toward lower torque, lower mass products. This paper focuses on improving fuel efficiency by considering the torque of automotive wheel bearing seals. This study establishes the level of drag torque reduction achieved through the structural design of the bearing seals. Wheel bearing seals are a critical component that must pass stringent torque, water exclusion, and other critical OEM and supplier performance specifications. They are designed as non-serviceable and must maintain full performance through the life of the vehicle.As a result of the application of specialized structural design, the drag torque, per the study, is reduced by more than 50% compared to existing bearing specifications. Electric vehicle companies are also seeking low friction wheel bearing solutions to further reduce CO2 (indirect or wheel-to-wheel) emissions. This research findings can assist the OEM’s in meeting the rigid emissions and fuel economy standards through drag reduction in the wheel bearings.
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The Szorenyi Three-Chamber Rotary Engine Concept

Partner Rotary Engine Development Agency-Peter King
Published 2019-09-09 by SAE International in United States
Currently automotive engines are reciprocating or Wankel rotary engine types. Reciprocating engines are bulky, heavy and complex, mainly due to the intake and exhaust valves and their associated cam-train. Wankel engines have a low rotor rev limit, and have inefficient sealing of the apex seals leading to poor economy and undesirable emission gases. The Rotary Engine Development Agency (REDA) has designed a new three-chamber rotary internal combustion engine concept using an adaptation of the patented Szorenyi Curve. The new design is an evolution of the design which was the subject of SAE Technical Paper 2017-01-2413 and SAE publication ‘So You Want to Design Engines: UAV Propulsion Systems’. This paper describes the features of the new three-chamber engine concept and includes an analysis of the major shortcomings of the Wankel engine. The Wankel engine’s geometry results in excessive crankshaft deflection at high engine revs due to the centrifugal force of the rotor which is eccentric to the crankshaft. This results in a low rotational speed limit. Analysis of the Wankel design reveals that the rotational speed…
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SEAL, BONDED, ALUMINUM ALLOY 6061-T6, AMS4027, MOLD IN GROOVE, NBR RUBBER, AMS-R-7362

A-6C2 Seals Committee
  • Aerospace Standard
  • AS27195B
  • Current
Published 2019-09-03 by SAE International in United States

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SEAL, BONDED, 302 CORROSION RESISTANT STEEL, AMS5516, MOLD IN GROOVE, FLUOROSILICONE RUBBER, MIL-DTL-25988

A-6C2 Seals Committee
  • Aerospace Standard
  • AS27198C
  • Current
Published 2019-09-03 by SAE International in United States

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SEAL, BONDED, 302 CORROSION RESISTANT STEEL, AMS5516, MOLD IN GROOVE, FLUOROCARBON RUBBER, AMS7276

A-6C2 Seals Committee
  • Aerospace Standard
  • AS27196C
  • Current
Published 2019-09-03 by SAE International in United States

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SEAL, BONDED, 302 CORROSION RESISTANT STEEL, AMS5516, MOLD IN GROOVE, SILICONE RUBBER, AMS7268

A-6C2 Seals Committee
  • Aerospace Standard
  • AS27197C
  • Current
Published 2019-09-03 by SAE International in United States

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O-Ring Molded from AMS7276 Material, Metric

A-6C2 Seals Committee
  • Aerospace Standard
  • MA3352A
  • Current
Published 2019-09-03 by SAE International in United States

Scope is unavailable.