Metric Oil Seals
Oil Seals
Available in both imperial and metric dimensions for single- and double-lip designs, oil seals are vital to the daily operation of most factories and a wide range of industrial and commercial equipment. Various lip materials are also available to best suit design challenges such as temperature and chemical resistance, while material options range from nitrile for low-temperature applications to Viton® for high-temperature and low-compression operations.
Common lip materials available for use in our metric oil seals include:
- Nitrile — A low-cost option, nitrile has superior low-temperature capability and abrasion resistance, as well as low swell in hydrocarbon fluids. It has poor heat resistance, however, and is not resistant to ozone or lubricants containing sulphur or EP additives or hydrocarbons/oxygenate blends.
- Temperature range: -40° F to 225° F / -40° C to 107° C)
- Polyacrylate — Unlike nitrile, this higher-cost material has high resistance to EP lubricants and higher heat capabilities. It also features low swell in hydrocarbon fluids. Polyacrylate has limited to low temperature capability and poor dry running capability. It’s also subject to attack in aqueous media.
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- Temperature range: -20° F to 300° F / -29° C to 49° C)
- Silicone — Good dry-heat resistance, excellent low-temperature capability, and good ozone resistance make silicone an ideal, relatively affordable lip material for many applications. It can, however, be easily damaged during installation, and has poor resistance to some EP additives and oxidized oil. Silicone also has a high swell and poor dry running performance.
- Temperature range: -80° F to 350° F / -62° C to 176° C)
- Fluoro-elastomer — Although relatively expensive, long-lasting fluoro-elastomer has excellent high-temperature capabilities and is compatible with many types of fluids. It does have poor resistance to basic fluids, and is prone to attack by high-performance gear lubes.
- Temperature range: -30° F to 400° F / -35° C to 204° C)
Depending on your application, you may need to employ premium lip materials, such as:
- Ethylene-acrylic (Varmac®) — This intermediate-cost material has higher heat capabilities than both nitrile and polyacrylate, and also has a better low-temperature performance than polyacrylate. It has good abrasion and dry running capabilities. However, it has high swell in hydrocarbon fluids and limited capability in high-frequency applications or following eccentric shafts.
- Temperature range: -30° F to 325° F / -34° C to 163° C)Tetrafluoro-ethylene propylene (Aflas®) — More expensive than fluoro-elastomers, this material has better chemical resistance to all hydrocarbon fluids, acids, bases, and oxidizing agents. It can perform in the complete range of hydraulic fluids and has continuous heat resistance over 400° F. As for its weaknesses, tetrafluoro-ethylene propylene has poor chemical resistance to hydrocarbon-oxygenate blends and poor low-temperature capabilities.
- Temperature range: -30° F to 400° F / -34° C to 204° C)
Available Dimensions:
Shaft Diameter (d): 6 mm to 400 mm
Outer Diameter (D): 16 mm to 440 mm
Width (b): 4 mm to 95 mm
Item # |
(d) Shaft Diameter |
(D) Outer Diameter |
(b) Width |
---|---|---|---|
MS28X40X7 MS28X40X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 28 mm | (D) Outer Diameter N/A 40 mm | (b) Width N/A 7 mm |
MS28X40X8 MS28X40X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 28 mm | (D) Outer Diameter N/A 40 mm | (b) Width N/A 8 mm |
MS28X42X8 MS28X42X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 28 mm | (D) Outer Diameter N/A 42 mm | (b) Width N/A 8 mm |
MS28X45X8 MS28X45X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 28 mm | (D) Outer Diameter N/A 45 mm | (b) Width N/A 8 mm |
MS28X47X7 MS28X47X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 28 mm | (D) Outer Diameter N/A 47 mm | (b) Width N/A 7 mm |
MS28X47X7V MS28X47X7V/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 28 mm | (D) Outer Diameter N/A 47 mm | (b) Width N/A 7V mm |
MS28X48X8 MS28X48X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 28 mm | (D) Outer Diameter N/A 48 mm | (b) Width N/A 8 mm |
MS30X40X7 MS30X40X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 40 mm | (b) Width N/A 7 mm |
MS30X42X7 MS30X42X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 42 mm | (b) Width N/A 7 mm |
MS30X45X5 MS30X45X5/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 45 mm | (b) Width N/A 5 mm |
MS30X45X8 MS30X45X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 45 mm | (b) Width N/A 8 mm |
MS30X47X7 MS30X47X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 47 mm | (b) Width N/A 7 mm |
MS30X47X7V MS30X47X7V/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 47 mm | (b) Width N/A 7V mm |
MS30X48X8 MS30X48X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 48 mm | (b) Width N/A 8 mm |
MS30X52X7 MS30X52X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 52 mm | (b) Width N/A 7 mm |
MS30X55X10 MS30X55X10/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 55 mm | (b) Width N/A 10 mm |
MS30X58X8 MS30X58X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 58 mm | (b) Width N/A 8 mm |
MS30X60X8 MS30X60X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 60 mm | (b) Width N/A 8 mm |
MS30X62X7 MS30X62X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 62 mm | (b) Width N/A 7 mm |
MS30X68X8 MS30X68X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 30 mm | (D) Outer Diameter N/A 68 mm | (b) Width N/A 8 mm |
MS32X42X7 MS32X42X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 32 mm | (D) Outer Diameter N/A 42 mm | (b) Width N/A 7 mm |
MS32X42X8 MS32X42X8/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 32 mm | (D) Outer Diameter N/A 42 mm | (b) Width N/A 8 mm |
MS32X43X7 MS32X43X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 32 mm | (D) Outer Diameter N/A 43 mm | (b) Width N/A 7 mm |
MS32X45X7 MS32X45X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 32 mm | (D) Outer Diameter N/A 45 mm | (b) Width N/A 7 mm |
MS32X47X7 MS32X47X7/Asset/Oil-Seal-Metric-dwg.jpg | (d) Shaft Diameter N/A 32 mm | (D) Outer Diameter N/A 47 mm | (b) Width N/A 7 mm |