Face seal break-in compound
AssigneeDeere & Company
InventorsDonald Orville Johannsen, Timothy Bernard French, Megan Emley Weston
Life of this patent
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Abstract
The present disclosure provides a vehicle assembly, such as a metal face seal, that includes a break-in lubricant compound. The assembly lubricant compound may reduce friction and scoring between contacting surfaces of the assembly, especially during the initial break-in of the assembly. During the initial break-in period, the compound may permit the contacting surfaces of the assembly to seat, or establish a pattern of surface mating, with limited wear and with limited material transfer or scoring.
Claims23
A metal face seal including:
- a first metallic sealing ring having a first contact surface;
- a second metallic sealing ring having a second contact surface, the second contact surface of the second metallic sealing ring configured to contact the first contact surface of the first metallic sealing ring;
- and
- a lubricant compound located between the first metallic sealing ring and the second metallic sealing ring, the lubricant compound including:
- less than 20% by weight of a base oil;
- more than 5% by weight of a GL-5 additive;
- and
- a viscosity index modifier.
A vehicle including:
- a chassis;
- at least one ground engaging mechanism configured to support and propel the chassis;
- an axle configured to drive the at least one ground engaging mechanism;
- a housing coupled to the chassis;
- and
- a metal face seal positioned between the axle and the housing, the metal face seal including:
- a first metallic sealing ring having a first contact surface;
- a second metallic sealing ring having a second contact surface, the second contact surface of the second metallic sealing ring configured to contact the first contact surface of the first metallic sealing ring;
- and
- a lubricant compound located between the first metallic sealing ring and the second metallic sealing ring, the lubricant compound including:
- less than 20% by weight of a base oil;
- more than 5% by weight of a GL-5 additive;
- and
- a viscosity index modifier.
An assembly lubricant compound including:
- less than 20% by weight of a base oil;
- more than 5% by weight of a GL-5 additive;
- and
- a viscosity index modifier.
Dependencies are inferred from the claim text.