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Oil Seal – Optimal Fluid Sealing Performance

Oil Seal normally consists of three basic components: the rubber sealing element, the metal insert (case) and the garter spring. The purpose of the sealing element is to stop the fluid from leaking between the shaft and housing. The metal insert will give rigidity and strength to the seal while it is being held in the bore or recessed groove. The garter spring will help make the rubber sealing element more effective.

In precision bearings, oil seal helps prevent lubricants from escaping the bearings or a specific area. In machine components, oil seal helps prevent abrasives, corrosive moisture and other harmful contaminants from entering machinery. It also helps stop mixture of two different mediums, such as lubricating oil and water.

Types

Twenty different types of oil seals on a white background.

The diagram of oil seal types

Common specifications

ASTM/DIN ISO NBR ACM VMQ (Silicone) FKM HNBR (NEM) PTFE
Wear Resistance very good moderate moderate very good moderate good
High Temperature Oil Resistance 100 °C 150 °C 180 °C 200 °C (max. 150 °C operate temperature) 150 °C (max. 140 °C operate temperature) 200 °C
Low Temperature -40 °C -30 °C -50 °C -25 °C -40 °C -80 °C
Oil Resistance good good moderate very good good extremely good
Common Specifications of Oil Seal
(Click for details)
Item Shaft Diameter Shaft Diameter Width
OS-01 6 mm 16 mm 5 mm
OS-02 6 mm 16 mm 7 mm
OS-03 6 mm 22 mm 7 mm
OS-04 7 mm 16 mm 7 mm
OS-05 7 mm 22 mm 7 mm
OS-06 8 mm 16 mm 7 mm
OS-07 8 mm 18 mm 5 mm
OS-08 8 mm 18 mm 7 mm
OS-09 8 mm 22 mm 7 mm
OS-10 8 mm 24 mm 7 mm
OS-11 9 mm 18 mm 7 mm
OS-12 9 mm 22 mm 7 mm
OS-13 9 mm 26 mm 7 mm
OS-14 10 mm 19 mm 7 mm
OS-15 10 mm 22 mm 7 mm
OS-16 10 mm 24 mm 7 mm
OS-17 10 mm 25 mm 7 mm
OS-18 10 mm 26 mm 7 mm
OS-19 11 mm 22 mm 7 mm
OS-20 11 mm 26 mm 7 mm
OS-21 11 mm 30 mm 7 mm
OS-22 12 mm 19 mm 5 mm
OS-23 12 mm 20.0 mm 5 mm
OS-24 12 mm 22 mm 7 mm
OS-25 12 mm 24 mm 7 mm
OS-26 12 mm 25 mm 4.5 mm
OS-27 12 mm 26 mm 7 mm
OS-28 12 mm 27 mm 7 mm
OS-29 12 mm 28 mm 7 mm
OS-30 12 mm 30 mm 7 mm
OS-31 12 mm 32 mm 7 mm
OS-32 12 mm 35 mm 7 mm
OS-33 13 mm 26 mm 7 mm
OS-34 13 mm 27 mm 7 mm
OS-35 13 mm 28 mm 7 mm
OS-36 13 mm 30 mm 7 mm
OS-37 14 mm 25 mm 5 mm
OS-38 14 mm 26 mm 7 mm
OS-39 14 mm 27 mm 7 mm
OS-40 14 mm 32 mm 7 mm
OS-41 14 mm 35 mm 7 mm
OS-42 15 mm 24 mm 7 mm
OS-43 15 mm 26 mm 7 mm
OS-44 15 mm 28 mm 7 mm
OS-45 15 mm 30 mm 7 mm
OS-46 15 mm 32 mm 7 mm
OS-47 15 mm 35 mm 7 mm
OS-48 15 mm 37 mm 6 mm
OS-49 15 mm 40 mm 7 mm
OS-50 16 mm 22 mm 4 mm
OS-51 16 mm 24 mm 6 mm
OS-52 16 mm 24 mm 7 mm
OS-53 16 mm 26 mm 7 mm
OS-54 16 mm 28 mm 7 mm
OS-55 16 mm 30 mm 7 mm
OS-56 16 mm 32 mm 7 mm
OS-57 16 mm 35 mm 7 mm
OS-58 16 mm 40 mm 7 mm
OS-59 17 mm 27 mm 7 mm
OS-60 17 mm 29 mm 7 mm
OS-61 17 mm 30 mm 7 mm
OS-62 17 mm 32 mm 7 mm
OS-63 17 mm 35 mm 7 mm
OS-64 17 mm 37 mm 7 mm
OS-65 17 mm 38 mm 7 mm
OS-66 17 mm 40 mm 7 mm
OS-67 17 mm 42 mm 7 mm
OS-68 17 mm 47 mm 7 mm
OS-69 17 mm 47 mm 8 mm
OS-70 18 mm 28 mm 6 mm
OS-71 18 mm 30 mm 7 mm
OS-72 18 mm 32 mm 7 mm
OS-73 18 mm 32 mm 8 mm
OS-74 18 mm 35 mm 7 mm
OS-75 18 mm 36 mm 7 mm
OS-76 18 mm 38 mm 7 mm
OS-77 18 mm 40 mm 7 mm
OS-78 19 mm 27 mm 6 mm
OS-79 19 mm 30 mm 7 mm
OS-80 19 mm 32 mm 8 mm
OS-81 19 mm 37 mm 7 mm
OS-82 19 mm 38 mm 7 mm
OS-83 19 mm 40 mm 10 mm
OS-84 19 mm 47 mm 7 mm
OS-85 20 mm 30 mm 5 mm
OS-86 20 mm 30 mm 7 mm
OS-87 20 mm 31 mm 7 mm
OS-88 20 mm 32 mm 7 mm
OS-89 20 mm 35 mm 7 mm
OS-90 20 mm 36 mm 7 mm
OS-91 20 mm 37 mm 7 mm
OS-92 20 mm 37 mm 8 mm
OS-93 20 mm 40 mm 7 mm
OS-94 20 mm 40 mm 7 mm
OS-95 20 mm 42 mm 7 mm
OS-96 20 mm 42 mm 10 mm
OS-97 20 mm 46 mm 7 mm
OS-98 20 mm 47 mm 7 mm
OS-99 20 mm 48 mm 7 mm
OS-100 20 mm 50 mm 7 mm
OS-101 20 mm 52 mm 7 mm
OS-102 21 mm 35 mm 7 mm
OS-103 22 mm 32 mm 7 mm
OS-104 22 mm 35 mm 7 mm
OS-105 22 mm 36 mm 7 mm
OS-106 22 mm 40 mm 8 mm
OS-107 22 mm 42 mm 7 mm
OS-108 22 mm 45 mm 7 mm
OS-109 22 mm 47 mm 7 mm
OS-110 24 mm 35 mm 7 mm
OS-111 24 mm 38 mm 7 mm
OS-112 24 mm 40 mm 7 mm
OS-113 24 mm 42 mm 7 mm
OS-114 24 mm 42 mm 8 mm
OS-115 24 mm 52 mm 7 mm
OS-116 25 mm 35 mm 6 mm
OS-117 25 mm 35 mm 7 mm
OS-118 25 mm 36 mm 7 mm
OS-119 25 mm 37 mm 7 mm
OS-120 25 mm 38 mm 7 mm
OS-121 25 mm 40 mm 7 mm
OS-122 25 mm 40 mm 7 mm

Features

  • Provides good low temperature resistant capability
  • Low swelling in hydrocarbon fluids
  • High sealing performance by optimum
  • Lightweight, compact and energy-saving
  • Compatibility with the fluid contacted
  • High degree of elasticity
  • Wear resistance
  • Low friction coefficient
  • Exact fit
  • Durable
  • Best in quality

Classical applications

  • Automotive equipment
  • Manufacturing
  • Off-highway
  • Oil refineries
  • Power transmission
  • Gearboxes
  • Hydraulic cylinders.
  • High voltage equipment
  • Construction
  • Medical and aerospace
  • Chemical processing
  • Pulp and paper
  • Oil and refining
  • Food and beverage
  • Water and waste water
Oil seal diagram installed on automotive equipment on a white background.

Applied in automotive equipment

The blue oil seals are mounted on the hydraulic cylinder on a white background.

Applied in hydraulic cylinder

A power transmission with the oil seal component is on the gray background

Applied in power transmission

A yellow and black color oil seal on a white background.
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