Spring-Loaded Rotary Shaft Seals with Wiper Lip
Used to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes, these seals have a secondary lip that blocks contaminants. Also known as oil seals, a spring secures the lip against the shaft, preventing messy leaks. Press-fit seals into the bore around the shaft. Seals with a maximum pressure of 50 psi should be secured with a retaining ring.
Seals with an acrylic-coated case have a coating that compensates for surface imperfections in the housing bore for a tight seal on the OD.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Bore | Case | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Dia. | Min. Wd. | Max. Speed, rpm | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Finish | Color | Specifications Met | Each | |
Buna-N Rubber with Steel Case and Spring | ||||||||||||
| 3/8" | 0.750" | 0.266" | 2,200 | 10 | -40° to 210° | Durometer 80A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 0000000 | 000000 |
Spring-Loaded Rotary Shaft Seals
Also known as oil seals, use these to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. A spring secures the lip against the shaft, preventing messy leaks. Press-fit seals into the bore around the shaft. Seals with a maximum pressure of 50 psi should be secured with a retaining ring.
Seals with an acrylic-coated case have a coating that compensates for surface imperfections in the housing bore for a tight seal on the OD.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Bore | Case | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Dia. | Min. Wd. | Max. Speed, rpm | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Finish | Color | Specifications Met | Each | |
Buna-N Rubber with Stainless Steel Case and Spring | ||||||||||||
| 3/8" | 0.749" | 0.266" | 2,200 | 50 | -40° to 210° | Durometer 75A (Hard) | Black | __ | __ | DIN 3760, ISO 6194 | 0000000 | 000000 |
Buna-N Rubber with Steel Case and Spring | ||||||||||||
| 3/8" | 0.749" | 0.266" | 2,200 | 10 | -40° to 210° | Durometer 75A (Hard) | Black | __ | __ | DIN 3760, ISO 6194 | 00000000 | 0000 |
| 3/8" | 0.875" | 0.266" | 2,200 | 10 | -40° to 210° | Durometer 75A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 00000000 | 00000 |
Rotary Shaft Seals for Grease
Also known as grease seals, these are designed to retain thick lubricant at low pressure in motors, pumps, bearings, and gearboxes. They have a light grip on the shaft that creates less friction than spring-loaded seals. Press-fit seals into the bore around the shaft.
Seals with an acrylic-coated case have a coating that compensates for surface imperfections in the housing bore for a tight seal on the OD.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Bore | Case | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Dia. | Min. Wd. | Max. Speed, rpm | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Finish | Color | Specifications Met | Each | |
Buna-N Rubber with Steel Case | ||||||||||||
| 3/8" | 0.688" | 0.172" | 2,200 | 10 | -40° to 210° | Durometer 75A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 0000000 | 00000 |
| 3/8" | 0.749" | 0.250" | 2,200 | 10 | -40° to 210° | Durometer 75A (Hard) | Black | __ | __ | DIN 3760, ISO 6194 | 00000000 | 0000 |
| 3/8" | 0.875" | 0.266" | 2,200 | 10 | -40° to 210° | Durometer 75A (Hard) | Black | __ | __ | DIN 3760, ISO 6194 | 0000000 | 00000 |
Shaft-Mounted Rotary Seals
Also known as V-rings and flingers, these seals protect shaft bearings by blocking dust and other contaminants while retaining lubricant. They’re Buna-N for excellent resistance to oil and grease. To install, stretch the seal over your shaft and press it firmly against the face plate. The Seal OD and Seal Width listed are the dimensions of the seal after it is installed.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Shaft | Seal | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Dia. Range | For Face Plate Dia. | ID | OD | Wd. | Max. Speed, rpm | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Each | |
Buna-N Rubber | ||||||||||||
| 3/8" | 0.370"-0.450" | 0.890"-0.970" | 0.340" | 0.891" | 0.250" | 17,400 | 100 | -20° to 225° | Durometer 85A (Hard) | Black | 0000000 | 00000 |
Heavy Duty Shaft-Mounted Rotary Seals
These seals are fluoroelastomer, so they have excellent chemical resistance and withstand temperatures up to 390° F. Also known as V-rings and flingers, they protect shaft bearings by blocking dust and other contaminants while retaining lubricant. To install, stretch the seal over your shaft and press it firmly against the face plate.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Shaft | Seal | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Dia. Range | For Face Plate Dia. | ID | OD | Wd. | Max. Speed, rpm | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Each | |
Fluoroelastomer Rubber | ||||||||||||
| 3/8" | 0.374"-0.453" | 0.728"-0.807" | 0.354" | 0.591" | 0.217" | 17,000 | 5 | 5° to 390° | Durometer 60A (Medium) | Brown | 0000000 | 00000 |
Mechanical Pump Shaft Seals
Commonly used in well, sump, and displacement pumps, these seals have a two-piece spring-loaded design that keeps the sealing surfaces in contact as the material wears. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket. Products cannot be sold outside North America due to restrictions.
Buna-N diaphragms and gaskets resist grease and a wide range of oils.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
Seal | Seat | Material | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Manufacturer Equivalent Number | Manufacturer/ Brand Equivalent | ID | OD | Wd. | ID | OD | Wd. | Washer | Seat | Max. Pressure, psi | Cannot Be Sold To | Each | |
304 Stainless Steel Case and Spring with Buna-N Rubber Diaphragm and Gasket | ||||||||||||||
| 3/8" | 511 | John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L | 0.375" | 0.917" | 0.625" | 0.421" | 0.875" | 0.218" | Phenolic Plastic | Gray Iron | 150 | Outside North America | 00000000 | 000000 |