A2 Case– The A2 design also has a metal outside diameter but includes an inner case which provide structural rigidity. This case design is used when the diameter of the seal is larger and rigidity is required to maintain structural integrity during installation.

Global O-Ring and Seal, LLC is a master distributor of O-Rings, Backup Rings, X-Rings, Cord Stock, and related seals, servicing industrial distributors worldwide. We stock all major compounds including Buna (Nitrile), Viton (FKM), EPDM, Silicone, Teflon, Aflas, etc. We carry a full range of AS568 standard sizes, as well as metric sizes and O-Ring cord stock.

‘V’ Lip – single lip without spring. This lip is designed for grease applications because the high viscosity of grease does not require a spring.

NAKoil seal

In addition to the Material, Lip, and Case selections, you can select to have a Stainless Steel Case and a Stainless Steel Spring. In those cases, you will find an additional indicator in the part number.

The durometer of an oil seal is typically dependent on the material it is made with. Common oil seal materials along with their durometers are as follows:

The oil seal size is specified by three dimensions: the rotating shaft diameter, the housing bore diameter, and the width (thickness). Because of the oil seal’s purpose, the correct size is critical to performance. The inside diameter of an oil seal is sized slightly smaller than the shaft diameter in order to seal lubricants inside and prevent harmful contaminants from entering. Oil seals are offered in both metric and inch sizes to ensure the correct fit. Oil seals can be looked up by size using the Oil Seal Size Chart, which narrows down oil seals as dimensions are entered.

Lip selection is driven by the media type, shaft speed, pressure, temperature and contamination parameters. The media used in the majority of applications is either oil or grease. Lip designs generally include a spring when the media is oil because of its higher viscosity as compared to grease. There is also a double spring design when there is media on both sides of the oil seal. Lip designs can also include a secondary lip which purpose is to mitigate particulates from reaching the sealing lip. For additional protection of the oil seal from outside particulates, a V-Ring can be used in conjunction with the oil seal to eliminate particulates.

Oil sealtype a

Material selection is important to the life of a radial shaft seal. The elastomer’s resistance to temperature, abrasion, chemicals, weather, sunlight, and ozone can affect a profile’s longevity and performance. The two most prevalent materials are Nitrile and Viton. See our Oil Seal Materials page for details on compounds and chemical compatibility.

‘K’ Lip – dual lip without a spring. This lip is designed for grease applications and include a secondary dust lip to minimize particulates from entering the sealing region.

Oil seals are produced by a variety of manufacturers from around the globe. Part numbers vary greatly with manufacturers, so we have created a quick cross reference guide to cross oil seal lip and case designs. Sizing and material selection can be made on our e-commerce site or provide to an Inside Salesperson when placing an order. See the chart below:

BR Case– The BR design is same as B with additional rubber coating on the leading edge of the case. This additional rubber coating is to ensure sealing when the oil seal is seated in the groove.

Nnkoil seal

‘T’ Lip – dual lip with spring. The lip design includes a secondary dust lip to minimize particulates from entering the sealing region. This is the most common lip design.

Material: There are several material options. Nitrile (Blank), Viton (V), Silicone (S), EPDM (E), Carboxylated Nitrile (X), HNBR (H), Polyacrylate (P), and Teflon (T).

Global O-Ring and Seal’s oil seal part numbers are designed to describe the seal size, style, and material composition. When searching for oil seals via our online store, you will not only be presented with your selection but with comparable oil seals of the same dimensions. There are often viable style substitutions that are functionally compatible but with additional features. With over 50,000 unique oil seals in our database, you can cross-reference 215,000 part numbers of OEMs and Manufacturers. In the Search Bar above, simply type the OEM/manufacturer part number alone (no need to type the name), and the oil seals matching that part number will be displayed.

Recently while driving I've heard and felt a grinding noise in the brake pedal, and steering wheel. I'm assuming its the FL wheel bearing, there is no play at all in it, however i can feel in the housing rumble when i spin it slowly.

The most common and cost effective case materials are stamped from cold rolled carbon steel. The steel is then phosphate coated to aid in the molding process and to help eliminate corrosion during storage. A simply ‘L’ shaped geometry is the most cost effective case design but a number of case geometries are available to improve rigidity, positioning and removability. oil seal cases can also include rubber molded options which address such factors as corrosion, vibration and sealing characteristics.

OilSeals by size

RSToil seal

As an example, this oil seal has a part number that corresponds to a Shaft Size of 3”, a Bore Size of 4”, a Width Size of 0.625”, a Style of TB2, and is made of Viton material. Conversely, the same size oil seal in Metric has a Shaft Size of 76.20 mm, a Bore Size of 101.60 mm, and a Width Size of 15.88 mm.

Choosing the correct oil seal for your application is important. It is just as important that oil seals are installed properly, in which our step-by-step guide can be viewed here. Doing so ensures your desired oil seal fits and performs as intended. Oil leaks can happen even after replacing an oil seal if the shaft has wear groove damage, in which case restoration is possible with the installation of a shaft repair sleeve.

Size #: Corresponds to sizes found on our Oil Seal Size Chart. The interactive chart will display matching sizes based on the dimensions input for Shaft, Bore, and Width. The Oil Seal Size # is hyperlinked to our online store, which will display all sizes matching the selection.

Oil seals offer numerous style options. With the most popular styles, each can be categorized as Good, Better and Best. The manufacturer most often uses a Good (or Better) solution which was the most economical version that would perform to specifications. When replacing that oil seal, you can use the exact style or choice a Better or Best solution if your exact style is not in stock. In the charts below, you can always move up to Better and Best styles which can be substituted. Our goal is to provide our customers with the best product fast so we will stock the Better and Best styles and price them competitively.

Here is a video of it after taking the tire & calipers off. Can anyone confirm or offer advice or anything about this? Thanks for any help! Also can i replace the bearing itself if it is the issue?

Oil sealliquid

Above, are all the components of an oil seal and all its naming conventions. Beyond selecting the correct size, the three primary selection criteria are Material, Lip, and Case. If you have an oil seal you’d like custom designed and made, send us your specifications through our Oil Seal Design Form.

C Case– The outside of this case is rubber coated. This design is often used when a seal will be removed frequently or if sealing of bore and oil seal is of concern.

Oil seals, often called a rotary shaft seal or grease seal, closes the gap between stationary and moving components in mechanical equipment — most often rotating shafts — helping prevent lubricant escape and stopping harmful materials, such as dirt, from moving in through the clearance. Oil seals are most commonly used in gearboxes, hydraulic cylinders, and related components.

Global O-Ring and Seal Case Design Lip Design Timken (National) SKF/CR Harwal Garlock Dichtomatik (TCM) SC Rubber OD Single Lip w/ Spring 35 HMS5 A 92 SC TC Rubber OD Double Lip w/ Spring 32 HMSA10 ADL 94 TC VC Rubber OD Single Lip, No Spring 34 HM4 AO 91 VC KC Rubber OD Double Lip, No Spring KC DC Rubber OD Two Spring Lips DC DC SB Metal OD, Rubber ID Single Lip w/ Spring HDS1/HDS2 SM 76 SM TB Metal OD, Rubber ID Double Lip w/ Spring TM 78 TM VB Metal OD, Rubber ID Single Lip, No Spring VM 71 VM KB Metal OD, Rubber ID Double Lip, No Spring KM KM DB Metal OD, Rubber ID Two Spring Lips DM SB2 Metal OD Single Lip w/ Spring 48 CRW1 B 76 SB TB2 Metal OD Double Lip w/ Spring 47, 69 CRWA1 BDL 78 TB VB2 Metal OD Single Lip, No Spring 44 HM14 BO 71 VB KB2 Metal OD Double Lip, No Spring 49 BODL KB DB2 Metal OD Two Spring Lips DB DB SBR Metal OD, Rubber ID, and Nose Single Lip w/ Spring 35 SZ TBR Metal OD, Rubber ID, and Nose Double Lip w/ Spring 33 TZ VBR Metal OD, Rubber ID, and Nose Single Lip, No Spring 31 VZ VZ KBR Metal OD, Rubber ID, and Nose Double Lip, No Spring KZ DBR Metal OD, Rubber ID, and Nose Two Spring Lips SA2 Metal OD w/ Reinforcing Plate Single Lip w/ Spring 45 CRWH1 C 50 SA TA2 Metal OD w/ Reinforcing Plate Double Lip w/ Spring 41, 70 CRWHA1 CDL TA VA2 Metal OD w/ Reinforcing Plate Single Lip, No Spring CO 63 VA KA2 Metal OD w/ Reinforcing Plate Double Lip, No Spring CODL 63 KA DA2 Metal OD w/ Reinforcing Plate Two Spring Lips 75 DA DA