Unbeatable Pricing. Quality Products. Fast Turnaround
For Immediate Assistance Please Call:
1-800-548-6648

Products

Oil Seals

Description

Oil seals and grease seals have a flexible lip that rubs against a shaft or housing to prevent the leakage or ingress of fluids and dirt.

For proper installation, the seal lip should point towards the medium being contained. Some oil seals and grease seals have a spring to help keep the lip in contact with the shaft.

Oil and grease seals are used to retain or separate lubricants or fluids. These seals are primarily used for rotary applications only.

Types

The seal type for oil seals and grease seals can be oil seals or other types. An oil seal can also called flexible lip, radial lip, or rotary shaft seal. Common configurations include single lip, double lip, triple lip, and four or more lips.

Bearing Isolator
Bearing isolators are dynamic seals designed to protect bearings from outside contaminants. They are comprised of a rotor (rotating) and stator (stationary) member. Some bearing isolators are of labyrinth construction while others use O-rings or other positive seals.

Other types of oil seals and grease seals include:

  • Single lip oil seals
  • Double lip oil seals
  • Metal cased
  • All rubber or polymer
  • Internal orientation
  • External orientation
  • Axial orientation
  • Spring-energized

 

Specifications

Sealing Orientation
The sealing orientation and direction is important to consider for oil seals and grease seals.

Piston seals are radial seals. The seal is fit onto a shaft with the sealing lip contacting the housing bore. V-rings are considered external lip seals.

An axial seal seals axially against a housing or machine component.

A symmetric seal is symmetrical and works equally well as a rod or a piston seal.

Rod seals, also referred to as shaft seals, are radial seals. The seal is press-fit into a housing bore with the sealing lip contacting the shaft.

An axial seal seals axially against a housing or machine component.

A symmetric seal is symmetrical and works equally well as a rod or a piston seal.

Dimensions

  • Radial cross section
  • Housing bore diameter or seal outer diameter
  • Axial cross section or thickness
  • Shaft outer diameter or seal inner diameter


Service Limits

  • Maximum operating speed
  • Maximum operating pressure
  • Vacuum rating
  • Operating temperature


Lip Materials

  • Ethylene acrylic
  • EDPM
  • Fluoroelastomer
  • Fluorosilicone
  • Nitrile
  • Nylon or polyamide
  • Polychloroprene
  • Polyetheretherkeytone
  • Polyoxymethylene
  • Polytetrafluoroethylene
  • Polyurethane
  • Urethane
  • Natural rubber
  • Sintered bronze
  • Cast iron
  • Stainless steel
  • Felt
  • Leather

Many seal manufacturers use their own proprietary material. Consult with manufacturer for proprietary material specifications.


 
SC
Low-pressure single lip with garter spring. Rubber covered OD to improve the OD sealing ability. Internal face of the steel case is not fully rubber covered.
KA-H
Non-pressure dual lip without garter spring provides protection from contaminants. Precision ground metal OD with an additional inner metal case for increased structural rigidity
SF
Low-pressure single lip with garter. Rubber covered OD to improve the OD sealing ability. Internal face of the steel case is fully rubber covered to prevent corrosion.
TF
Low-pressure dual lip with garter spring provides protection from contaminants. Rubber covered OD to improve the OD sealing ability. Internal face of the steel case is fully rubber covered to prevent corrosion.
VF
Non-pressure single lip without garter spring. Rubber covered OD to improve the OD sealing ability. Internal face of the steel case is fully rubber covered to prevent corrosion.
KF
Non-pressure dual lip without garter spring provides protection from contaminants. Rubber covered OD to improve the OD dealing ability. Internal face of the steel case is fully rubber covered to prevent corrosion.
SM-H
Low-pressure single lip with garter spring. Precision ground metal OD with a lead-in chamfer for ease of installation. Internal face of the steel case is fully rubber covered to prevent corrosion.
TM-H
Low-pressure dual lip with garter spring provides protection from contaminants. Precision ground metal OD with a lead-in chamfer for ease of installation. Internal face of the steel case is fully rubber covered to prevent corrosion.
VM-H
Non-pressure single lip without garter spring. Precision ground metal OD with a lead-in chamfer for ease of installation. Internal face of the steel case is fully rubber covered to prevent corrosion.
VB-H
Non-pressure single lip without garter spring. Precision ground metal OD with a lead-in chamfer for ease of installation.
VA-H
Non-pressure single lip without garter spring. Precision ground metal OD with an additional inner metal case for increased structural rigidity.
TC
Low-pressure dual lip with garter spring provides protection from contaminants. Rubber covered OD to improve the OD sealing ability. Internal face of the steel case is not fully rubber covered.
VC
Non-pressure single lip without garter spring. Rubber covered OD to improve the OD sealing ability.Internal face of the steel case is not fully rubber covered.
KC
Non-pressure dual lip without garter spring provides protection from contaminants. Rubber covered OD to improve the OD sealing ability.Internal face of the steel case is not fully rubber covered.
SB-H
Low-pressure single lip with garter spring. Precision ground metal OD with a lead-in chamfer for ease of installation.
TB-H
Low-pressure dual lip with garter spring protection from contaminants. Precision ground metal OD with a lead-in chamfer for ease of installation
KB-H
Non-pressure dual lip without garter spring provides protection from contaminants. Precision ground metal OD with a lead-in chamfer for ease of installation.
SA-H
Low-pressure single lip with garter spring. Precision ground metal OD with an additional inner metal case for increased structural rigidity
TA-H
Low-pressure dual lip with garter spring provides protection from contaminants. Precision ground metal OD with a lead-in chamfer for ease of installation.
KM-H
Non-pressure dual lip without garter springs provides protection from contaminants. Precision ground metal OD with a lead-in chamfer for ease of installation. Internal face of the steel case is fully rubber covered to prevent corrosion.