Bearing Seals

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Bearing Seals, also known as grease seals, are used to protect tapered, spherical, cylindrical and double-row bearings from excess grease loss and contamination. In 1956, Clark Seals partnered with The Timken Company to develop the industry’s first precision bearings seals for tapered roller bearings. Over the years, Clark Seals has pioneered many significant advancements in bearing seal design and manufacturing technology, including the industry’s first sheave and excluder bearing seals, unitized zero-friction bearing seals, hand-install bearing seals and vacuum molding technology, a technology that revolutionized seal manufacturing.

Some seals are integral to the bearing; others aren’t. The focus here is on what to consider when selecting external bearing seals. Key factors in making the right choice for an application typically include:Bearing type (rolling or sleeve),Lubricant (oil or grease),Seal friction and consequent heating.Shaft surface speed and finish,Physical space available.To select the appropriate seal for an application, match the relevant factors from the above list with the characteristics of the following external seal types.

Bearing Number Bore Dia Outer DIa Width Size
NSK 7008 Bearing 2.1250 in 40500 lbf Uncoated 4500
SKF NUP 207 JV Bearing Seals Open Cone & Cup Uncoated 6.1870 in
SKF L507949/L507910 AV Bearing Seals Steel Single Row Standard Flat
SKF 61908 JV Bearing Seals 0.9375 in Flat None Non-Metallic Bushing
SKF 61914 JV Bearing Seals 8-3/8 in 675 kN For Lock Washer Steel
SKF 387/382A AV Bearing Seals 52100 Bearing Steel 1651 lb Lubrication Fitting 5.5000 in
SKF 32310 AK Bearing Seals Bearing holder set, No 20 Days UPW, URW-408, 409 ,
SKF NUP 2309 JV Bearing Seals SKF NUP 2309 JV 1 pcs Negotiable
SKF 6320 JV Bearing Seals Inch 52100 Steel 6 Days 23/32
SKF 61852 AV Bearing Seals 24 mm 24 mm 62 mm Steel
SKF 61836 AV Bearing Seals 1.2500 in ER Nylon 1-11/16 in
SKF 6208 ZJV Bearing Seals 6588 lb 8.8800 in 2.0000 in Round