McMaster-Carr logo
    Filter by
    System of Measurement
    Maximum Rotation Speed
    Maximum Temperature
    Loaded Type
    Maximum Pressure
    Spring Material
    For Shaft Motion
    Seat Material
    For Sealing
    Hardness Rating
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    10 Products

    Heavy Duty Shaft-Mounted Rotary Shaft Seals

    Image of Product. Side 1. Front orientation. Shaft Seals. Heavy Duty Shaft-Mounted Rotary Shaft Seals.
    Image of Product. Side 2. Back orientation. Shaft Seals. Heavy Duty Shaft-Mounted Rotary Shaft Seals.
    Image of Product. Profile. Front orientation. CrossSection view. Shaft Seals. Heavy Duty Shaft-Mounted Rotary Shaft Seals.
    Image of Attribute. Front orientation. Contains Annotated. Heavy Duty Shaft-Mounted Rotary Shaft Seals.

    Side 1

    Side 2

    Profile

    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 Shaft
    Seal
    Dia.
    Dia. Range
    For Faceplate
    Dia.
    ID
    OD
    Wd.
    Max. Rotation
    Speed, rpm
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Hardness
    Color
    Each
    Fluoroelastomer
    3/8"0.374" to 0.453"0.728" to 0.807"0.354"0.591"0.217"17,00055 to 390Durometer 60A (Medium)Brown000000000000
     

    Shaft-Mounted Rotary Shaft Seals

    Image of Product. Side 1. Front orientation. Shaft Seals. Shaft-Mounted Rotary Shaft Seals.
    Image of Product. Side 2. Back orientation. Shaft Seals. Shaft-Mounted Rotary Shaft Seals.
    Image of Product. Profile. Front orientation. CrossSection view. Shaft Seals. Shaft-Mounted Rotary Shaft Seals.
    Image of Attribute. Front orientation. Contains Annotated. Shaft-Mounted Rotary Shaft Seals.

    Side 1

    Side 2

    Profile

    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 faceplate. 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 Shaft
    Seal
    Dia.
    Dia. Range
    For Faceplate
    Dia.
    ID
    OD
    Wd.
    Max. Rotation
    Speed, rpm
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Hardness
    Color
    Each
    Buna-N
    3/8"0.370" to 0.450"0.890" to 0.970"0.340"0.891"0.250"17,400100-20 to 225Durometer 85A (Hard)Black000000000000
     

    Spring-Loaded Rotary Shaft Seals with Wiper Lip

    Image of Product. Side 1. Front orientation. Shaft Seals. Spring-Loaded Rotary Shaft Seals with Wiper Lip.
    Image of Product. Side 2. Back orientation. Shaft Seals. Spring-Loaded Rotary Shaft Seals with Wiper Lip.
    Image of Product. Profile. Front orientation. CrossSection view. Shaft Seals. Spring-Loaded Rotary Shaft Seals with Wiper Lip.
    Image of Attribute. Front orientation. Contains Annotated. Spring-Loaded Rotary Shaft Seals with Wiper Lip.

    Side 1

    Side 2

    Profile

    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.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    Acrylic-Coated Case—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.
    Seal
    For
    Bore
    Case
    For Shaft
    Dia.
    ID
    OD
    Wd.
    Dia.
    Min.Wd.
    Max. Rotation
    Speed, rpm
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Hardness
    Color
    Finish
    Color
    Specs. Met
    Each
    Buna-N with Steel Case and Steel Spring
    3/8"0.375"0.750"0.250"0.750"0.266"2,20010-40 to 210Durometer 80A (Hard)BlackAcrylic CoatedGreenDIN 3760, ISO 61940000000000000
     

    Rotary Shaft Seals for Grease

    Image of Product. Side 1. Front orientation. Shaft Seals. Rotary Shaft Seals for Grease.
    Image of Product. Side 2. Back orientation. Shaft Seals. Rotary Shaft Seals for Grease.
    Image of Product. Profile. Front orientation. CrossSection view. Shaft Seals. Rotary Shaft Seals for Grease.
    Image of Attribute. Front orientation. Contains Annotated. Rotary Shaft Seals for Grease.

    Side 1

    Side 2

    Profile

    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.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    Acrylic-Coated Case—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.
    Seal
    For
    Bore
    Case
    For Shaft
    Dia.
    ID
    OD
    Wd.
    Dia.
    Min.Wd.
    Max. Rotation
    Speed, rpm
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Hardness
    Color
    Finish
    Color
    Specs. Met
    Each
    Buna-N with Steel Case
    3/8"0.375"0.688"0.156"0.688"0.172"2,20010-40 to 210Durometer 75A (Hard)BlackAcrylic CoatedGreenDIN 3760, ISO 6194000000000000
    3/8"0.375"0.749"0.250"0.749"0.250"2,20010-40 to 210Durometer 75A (Hard)Black——DIN 3760, ISO 6194000000000000
    3/8"0.375"0.875"0.250"0.875"0.266"2,20010-40 to 210Durometer 75A (Hard)Black——DIN 3760, ISO 619400000000000
     

    Spring-Loaded Rotary Shaft Seals

    Image of Product. Side 1. Front orientation. Shaft Seals. Spring-Loaded Rotary Shaft Seals.
    Image of Product. Side 2. Back orientation. Shaft Seals. Spring-Loaded Rotary Shaft Seals.
    Image of Product. Profile. Front orientation. CrossSection view. Shaft Seals. Spring-Loaded Rotary Shaft Seals.
    Image of Attribute. Front orientation. Contains Annotated. Spring-Loaded Rotary Shaft Seals.

    Side 1

    Side 2

    Profile

    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.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    Acrylic-Coated Case—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.
    Seal
    For
    Bore
    Case
    For Shaft
    Dia.
    ID
    OD
    Wd.
    Dia.
    Min.Wd.
    Max. Rotation
    Speed, rpm
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Hardness
    Color
    Finish
    Color
    Specs. Met
    Each
    Buna-N with Stainless Steel Case and Stainless Steel Spring
    3/8"0.375"0.749"0.250"0.749"0.266"2,20050-40 to 210Durometer 75A (Hard)Black——DIN 3760, ISO 61940000000000000
     
    Buna-N with Steel Case and Steel Spring
    3/8"0.375"0.749"0.250"0.749"0.266"2,20010-40 to 210Durometer 75A (Hard)Black——DIN 3760, ISO 6194000000000000
    3/8"0.375"0.875"0.250"0.875"0.266"2,20010-40 to 210Durometer 75A (Hard)BlackAcrylic CoatedGreenDIN 3760, ISO 61940000000000000
     

    Mechanical Pump Shaft Seals

    Image of Product. Front orientation. Exploded view. Contains Annotated. Shaft Seals. 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.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    Buna-N Diaphragm—Buna-N diaphragms resist grease and a wide range of oils.
    Buna-N Gasket—Buna-N gaskets resist grease and a wide range of oils.
    Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
    Seal
    Seat
    Material
    For Shaft
    Dia.
    Mfr. Equiv.
    No.
    Mfr./Brand Equiv.
    ID
    OD
    Wd.
    ID
    OD
    Wd.
    Washer
    Seat
    Max. Pressure,
    psi
    Cannot Be Sold To
    Each
    304 Stainless Steel Case and 304 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket
    3/8"511John Crane Type 6
    Pac-Seal Type 16
    Sealol Type 60L    		0.375"0.917"0.625"0.421"0.875"0.218"PhenolicGray Iron150Outside North America00000000000000
     
    back to top