Whenever a shaft rotates, it needs a bearing arrangement for smooth and effective operation. Wherever there is a bearing, you will always find a seal helping it to reach its maximum service life and reliability. The most common types of seals used in bearing arrangements, are radial shaft seals for use in general industrial applications with shaft diameters up to 200 mm or 8 inch respectively. The large diameter seals, for shaft diameters above 200 mm, provide special features and are intended for use in heavy and large-size engineering applications, which require either very large or specially designed seals. In general terms, a radial shaft seal is a barrier with four main functions (images 1-4).
SKF's family of large diameter seals has been joined by the CR HDL seal, which provides improved sealing for large bearings in applications where it is critical to retain bearing lubricants and exclude contaminants. As well as providing superior sealing performance, the HDL seal compensates for common problems such as roll deflection, shaft misalignment and run-out.
SKF's family of large diameter seals has been joined by the CR HDL seal, which provides improved sealing for large bearings in applications where it is critical to retain bearing lubricants and exclude contaminants. As well as providing superior sealing performance, the HDL seal compensates for common problems such as roll deflection, shaft misalignment and run-out.
Whenever a shaft rotates, it needs a bearing arrangement for smooth and effective operation. Wherever there is a bearing, you will always find a seal helping it to reach its maximum service life and reliability. The most common types of seals used in bearing arrangements, are radial shaft seals for use in general industrial applications with shaft diameters up to 200 mm or 8 inch respectively. The large diameter seals, for shaft diameters above 200 mm, provide special features and are intended for use in heavy and large-size engineering applications, which require either very large or specially designed seals. In general terms, a radial shaft seal is a barrier with four main functions (images 1-4).
SKF/Global | SKF/Global | SKF/North America | SKF/North America | |
---|---|---|---|---|
Product Category | Oil Seals and Grease Seals | Oil Seals and Grease Seals | Oil Seals and Grease Seals | Oil Seals and Grease Seals |
Product Number | MVR2-30 | MVR2-30 | MVR2-30 | MVR2-30 |
Product Name | Rotary Shaft Seal | Axial Shaft Seal - MVR Series | Axial Shaft Seal - MVR Series | Rotary Shaft Seal |
Seal Type | Single Lip Oil Seal | Single Lip Oil Seal; V-ring | Single Lip Oil Seal; V-ring | Single Lip Oil Seal |
Material (ASTM Abbreviation) | Nitrile (NBR) | Fluoroelastomer (FKM); Nitrile (NBR) | Fluoroelastomer (FKM); Nitrile (NBR) | Nitrile (NBR) |
Design Units | English | Metric | Metric | English |
Shaft O.D. or Seal I.D. | 1.18 inch (30 mm) | 1.18 inch (30 mm) | 1.18 inch (30 mm) | 1.18 inch (30 mm) |
Housing I.D. or Seal O.D. | 0.0 inch (0.0 mm) | 1.89 inch (48 mm) | 1.89 inch (48 mm) | 0.0 inch (0.0 mm) |