- Home
- Sealing Products
- Rotary Shaft Seals
Rotary Shaft Seals - NBR - Nitrile Rubber - 111mm
Oil seals described as a rotary shaft oil seal or lip seal, and can be manufactured in the following materials.
- Nitrile or NBR is the most commonly used material. Nitrile is excellent with most mineral oils and greases. Temperature range -65° to 225°F (-54° to 107°C) Normally coloured black
- Viton or FPM Premium lip material for the widest temperature range and chemical resistance. Temperature range from -40° to over 400°F (-40° to over 204°C) They resist most special lubricants and chemicals that can destroy nitrile, polyacrylates and silicones. This premium material, with its extreme resistance to abrasion, provides superior performance and wear. Normally coloured brown
- Lip Type
- R21 Rubber with single lip
- R23 Rubber with a wiper lip
- R4 Metal single lip
What does a rotary shaft seal do?
A rotary shaft seal is designed to maintain the functionality and efficiency of machinery by sealing the area where a rotating shaft extends through a component's housing. Its key roles are:
- Keeping lubricants in: It prevents oils or greases from leaking out of the machine, avoiding excessive wear and potential failure of machinery.
- Keeping contaminants out: It blocks dirt, water, or other environmental contaminants from entering the machinery, protecting the shaft and internal components from damage.
What is the best seal for a rotating shaft?
The ideal seal for a rotating shaft largely depends on specific operational factors such as shaft speed, environmental conditions, system pressure and temperature, and the fluid type involved. Popular options include:
- Mechanical seals: Best for high-pressure environments and when minimal leakage is crucial. These feature two flat surfaces, aligned with the rotating shaft and stationary housing, pressed tightly together.
- Lip seals: Also known as radial shaft seals, these are widely used across various sectors for their cost-effectiveness and reliable performance, suitable for moderate pressures and speeds.
Can an O-ring seal a rotating shaft?
O-rings are generally not recommended for sealing rotating shafts due to their suitability for static or slow-moving joints. High-speed rotations can cause O-rings to wear out rapidly due to friction and heat buildup. For such applications, different types of seals should be considered.
What type of seal is most commonly used to seal a rotating shaft?
The most commonly used seal for rotating shafts is the lip seal, or radial shaft seal. Characterized by a rubberized layer with a metal insert and a spring to maintain tension, these seals handle moderate speeds and temperatures effectively. Lip seals are preferred in various settings, from automotive engines to industrial machines, due to their affordability, ease of installation, and wide availability.
- Outside Diameter 111mm Remove This Item
- Material NBR - Nitrile Rubber Remove This Item
- 10mm 1 item
- 12mm 1 item
- 12.7mm = 1/2" 1 item
- 14mm 1 item
- 15mm 2 items
- 15.875mm = 5/8" 2 items
- 16mm 13 items
- 17mm 4 items
- 17.463mm = 11/16" 1 item
- 18mm 11 items
- 19mm 10 items
- 19.05mm = 3/4" 4 items
- 20mm 8 items
- 21mm 6 items
- 22mm 30 items
- 22.225mm = 7/8" 5 items
- 23mm 2 items
- 23.812mm = 15/16" 1 item
- 24mm 24 items
- 25mm 20 items
- 25.4mm = 1" 11 items
- 26mm 22 items
- 26.988mm = 1-1/16" 2 items
- 27mm 10 items
- 28mm 17 items
- 28.575mm = 1-1/8" 18 items
- 29mm 4 items
- 30mm 35 items
- 30.163mm = 1-3/16" 3 items
- 31mm 3 items
- 31.75mm = 1-1/4" 18 items
- 32mm 35 items
- 33mm 3 items
- 33.338mm = 1-5/16" 2 items
- 34mm 4 items
- 34.925mm = 1-3/8" 18 items
- 35mm 52 items
- 36mm 10 items
- 36.513mm = 1-7/16" 1 item
- 37mm 20 items
- 38mm 28 items
- 38.1mm = 1-1/2" 16 items
- 39.688mm = 1-9/16" 4 items
- 40mm 53 items
- 41mm 2 items
- 41.275mm = 1-5/8" 15 items
- 42mm 44 items
- 42.5mm 1 item
- 42.862mm = 1-11/16" 7 items
- 43mm 2 items
- 44mm 14 items
- 44.45mm = 1-3/4" 18 items
- 45mm 26 items
- 45.244mm = 1-25/32" 1 item
- 46mm 9 items
- 46.038mm = 1-13/16" 2 items
- 47mm 61 items
- 47.625mm = 1-7/8" 18 items
- 48mm 21 items
- 49.213mm = 1-15/16" 1 item
- 50mm 41 items
- 50.8mm = 2" 29 items
- 52mm 68 items
- 52.388mm = 2-1/16" 10 items
- 53mm 2 items
- 53.975mm = 2-1/8" 13 items
- 54mm 12 items
- 55mm 37 items
- 55.563mm = 2-3/16" 4 items
- 56mm 21 items
- 57mm 2 items
- 57.15mm = 2-1/4" 20 items
- 58mm 23 items
- 58.738mm = 2-5/16" 1 item
- 60mm 29 items
- 60.325mm = 2-3/8" 14 items
- 61.913mm = 2-7/16" 3 items
- 62mm 67 items
- 63mm 4 items
- 63.5mm = 2-1/2" 26 items
- 64mm 3 items
- 65mm 31 items
- 65.0875mm 5 items
- 66.675mm = 2-5/8" 12 items
- 67mm 1 item
- 68mm 26 items
- 68.262mm = 2-11/16" 5 items
- 69.85mm = 2-3/4" 21 items
- 70mm 20 items
- 71.438mm = 2-13/16" 1 item
- 72mm 54 items
- 73.025mm = 2-7/8" 13 items
- 74mm 4 items
- 75mm 24 items
- 76mm 2 items
- 76.2mm = 3" 18 items
- 77mm 1 item
- 77.788mm 2 items
- 78mm 6 items
- 79.375mm = 3-1/8" 4 items
- 80mm 59 items
- 80.963mm = 3-3/16" 4 items
- 82mm 4 items
- 82.55mm = 3-1/4" 8 items
- 85mm 37 items
- 85.725mm 12 items
- 88mm 3 items
- 88.9mm = 3-1/2" 14 items
- 90mm 9 items
- 90.488mm = 3-9/16" 1 item
- 92mm 4 items
- 92.075mm = 3-5/8" 6 items
- 95mm 19 items
- 95.25mm = 3-3/4" 10 items
- 98.425mm 5 items
- 100mm 40 items
- 101.6mm = 4" 11 items
- 102mm 1 item
- 103.188mm = 4-1/16" 1 item
- 104.775mm = 4-1/8" 5 items
- 105mm 13 items
- 107mm 1 item
- 107.95mm = 4-1/4" 7 items
- 110mm 35 items
- 111mm 1 item
- 111.125mm = 4-3/8" 3 items
- 112mm 2 items
- 115mm 10 items
- 117.475mm = 4-5/8" 4 items
- 120mm 18 items
- 120.65mm = 4-3/4" 7 items
- 125mm 9 items
- 127mm = 5" 7 items
- 130mm 19 items
- 130.175mm 1 item
- 133.35mm = 5-1/4" 5 items
- 135mm 3 items
- 136.525mm 4 items
- 139.7mm 4 items
- 140mm 21 items
- 142.875mm 3 items
- 145mm 3 items
- 146.05mm = 5-3/4" 2 items
- 149.225mm = 5-7/8" 1 item
- 150mm 13 items
- 152.4mm = 6" 4 items
- 155mm 2 items
- 155.575mm 2 items
- 158.75mm = 6-1/4" 2 items
- 160mm 9 items
- 161.925mm 1 item
- 165mm 3 items
- 165.1mm = 6-1/2" 3 items
- 168.275mm = 6-5/8" 1 item
- 170mm 15 items
- 171.45mm = 6-3/4" 2 items
- 174.625mm 2 items
- 175mm 1 item
- 177.8mm = 7" 2 items
- 180mm 5 items
- 185mm 1 item
- 190mm 6 items
- 190.5mm = 7-1/2" 2 items
- 193.675mm 1 item
- 196.85mm = 7-3/4" 1 item
- 200mm 3 items
- 203.2mm = 8" 1 item
- 209.55mm = 8-1/4" 1 item
- 210mm 3 items
- 215mm 2 items
- 215.9mm = 8-1/2" 1 item
- 219.075mm 1 item
- 220mm 1 item
- 225mm 2 items
- 228.6mm = 9" 2 items
- 230mm 2 items
- 240mm 1 item
- 241.3mm = 9-1/2" 1 item
- 244.475mm 1 item
- 250mm 2 items
- 270mm 1 item
- 340mm 1 item
- 1125mm 1 item