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Imperial Oil Seals
Bearings Oil Seals & O-rings Oil Seals
We offer a comprehensive range of imperial nitrile covered rotary shaft oil seals suitable for a variety of industrial applications. With single lip seals available in R21 and R23 types, and sizes from 1/4" up to 8 1/4" inside diameter, we have the oil seals you need for bearing and shaft protection. All seals feature nitrile rubber construction for durability, with press fit installation. Browse our catalog of over 600 oil seals by inside diameter, outside diameter, width, or type to find the perfect fit. Trust us as your supplier for high quality imperial oil seals.
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Ball Bearings (Loose Steel Balls)
O-ring Cord
Imperial Ball Bearings
SKF Ball Bearings
Inside Diameter
209.55mm = 8.25inch
209.55mm = 8.25inch
Material
Nitrile
Nitrile
Outside Diameter
247.65mm = 9.75inch
247.65mm = 9.75inch
Type
R21
R21
Width
14.22mm = 0.56inch
14.22mm = 0.56inch
Qty:
Inside Diameter
203.2mm = 8inch
203.2mm = 8inch
Material
Nitrile
Nitrile
Outside Diameter
241.3mm = 9.5inch
241.3mm = 9.5inch
Type
R23
R23
Width
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Qty:
Inside Diameter
206.25mm = 8.12inch
206.25mm = 8.12inch
Material
Nitrile
Nitrile
Outside Diameter
244.35mm = 9.62inch
244.35mm = 9.62inch
Type
R21
R21
Width
14.22mm = 0.56inch
14.22mm = 0.56inch
Qty:
Inside Diameter
190.5mm = 7.5inch
190.5mm = 7.5inch
Material
Nitrile
Nitrile
Outside Diameter
228.6mm = 9inch
228.6mm = 9inch
Type
R23
R23
Width
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Qty:
Inside Diameter
184.15mm = 7.25inch
184.15mm = 7.25inch
Material
Nitrile
Nitrile
Outside Diameter
228.6mm = 9inch
228.6mm = 9inch
Type
R21
R21
Width
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Qty:
Inside Diameter
171.45mm = 6.75(6.3/4)inch
171.45mm = 6.75(6.3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
209.55mm = 8.25inch
209.55mm = 8.25inch
Type
R21
R21
Width
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Qty:
Inside Diameter
190.5mm = 7.5inch
190.5mm = 7.5inch
Material
Nitrile
Nitrile
Outside Diameter
218.95mm = 8.62inch
218.95mm = 8.62inch
Type
R21
R21
Width
15.75mm = 0.62inch
15.75mm = 0.62inch
Qty:
Inside Diameter
171.45mm = 6.75(6.3/4)inch
171.45mm = 6.75(6.3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
196.85mm = 7.75inch
196.85mm = 7.75inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
152.4mm = 6inch
152.4mm = 6inch
Material
Nitrile
Nitrile
Outside Diameter
190.5mm = 7.5inch
190.5mm = 7.5inch
Type
R23
R23
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
177.8mm = 7inch
177.8mm = 7inch
Material
Nitrile
Nitrile
Outside Diameter
203.2mm = 8inch
203.2mm = 8inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
168.15mm = 6.62inch
168.15mm = 6.62inch
Material
Nitrile
Nitrile
Outside Diameter
193.55mm = 7.62inch
193.55mm = 7.62inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
165.1mm = 6.5(6.1/2)inch
165.1mm = 6.5(6.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
203.2mm = 8inch
203.2mm = 8inch
Type
R21
R21
Width
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Qty:
Inside Diameter
184.15mm = 7.25inch
184.15mm = 7.25inch
Material
Nitrile
Nitrile
Outside Diameter
215.9mm = 8.5inch
215.9mm = 8.5inch
Type
R21
R21
Width
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Qty:
Inside Diameter
177.8mm = 7inch
177.8mm = 7inch
Material
Nitrile
Nitrile
Outside Diameter
215.9mm = 8.5inch
215.9mm = 8.5inch
Type
R23
R23
Width
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Qty:
Inside Diameter
146.05mm = 5.75(5.3/4)inch
146.05mm = 5.75(5.3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
190.5mm = 7.5inch
190.5mm = 7.5inch
Type
R21
R21
Width
14.22mm = 0.56inch
14.22mm = 0.56inch
Qty:
Inside Diameter
165.1mm = 6.5(6.1/2)inch
165.1mm = 6.5(6.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
190.5mm = 7.5inch
190.5mm = 7.5inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
158.75mm = 6.25(6.1/4)inch
158.75mm = 6.25(6.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
184.15mm = 7.25inch
184.15mm = 7.25inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
158.75mm = 6.25(6.1/4)inch
158.75mm = 6.25(6.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
182.37mm = 7.18inch
182.37mm = 7.18inch
Type
R23
R23
Width
15.75mm = 0.62inch
15.75mm = 0.62inch
Qty:
Inside Diameter
158.75mm = 6.25(6.1/4)inch
158.75mm = 6.25(6.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
177.8mm = 7inch
177.8mm = 7inch
Type
R23
R23
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
152.4mm = 6inch
152.4mm = 6inch
Material
Nitrile
Nitrile
Outside Diameter
177.8mm = 7inch
177.8mm = 7inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
146.05mm = 5.75(5.3/4)inch
146.05mm = 5.75(5.3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
177.8mm = 7inch
177.8mm = 7inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
146.05mm = 5.75(5.3/4)inch
146.05mm = 5.75(5.3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
171.45mm = 6.75(6.3/4)inch
171.45mm = 6.75(6.3/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
139.7mm = 5.5(5.1/2)inch
139.7mm = 5.5(5.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
171.45mm = 6.75(6.3/4)inch
171.45mm = 6.75(6.3/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
139.7mm = 5.5(5.1/2)inch
139.7mm = 5.5(5.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
165.1mm = 6.5(6.1/2)inch
165.1mm = 6.5(6.1/2)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
133.35mm = 5.25(5.1/4)inch
133.35mm = 5.25(5.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
165.1mm = 6.5(6.1/2)inch
165.1mm = 6.5(6.1/2)inch
Type
R21
R21
Width
15.75mm = 0.62inch
15.75mm = 0.62inch
Qty:
Inside Diameter
127mm = 5inch
127mm = 5inch
Material
Nitrile
Nitrile
Outside Diameter
165.1mm = 6.5(6.1/2)inch
165.1mm = 6.5(6.1/2)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
142.75mm = 5.62inch
142.75mm = 5.62inch
Material
Nitrile
Nitrile
Outside Diameter
161.8mm = 6.37inch
161.8mm = 6.37inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
139.7mm = 5.5(5.1/2)inch
139.7mm = 5.5(5.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
158.75mm = 6.25(6.1/4)inch
158.75mm = 6.25(6.1/4)inch
Type
R21
R21
Width
14.22mm = 0.56inch
14.22mm = 0.56inch
Qty:
Inside Diameter
133.35mm = 5.25(5.1/4)inch
133.35mm = 5.25(5.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
158.75mm = 6.25(6.1/4)inch
158.75mm = 6.25(6.1/4)inch
Type
R21
R21
Width
14.22mm = 0.56inch
14.22mm = 0.56inch
Qty:
Inside Diameter
133.35mm = 5.25(5.1/4)inch
133.35mm = 5.25(5.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
158.75mm = 6.25(6.1/4)inch
158.75mm = 6.25(6.1/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
130.05mm = 5.12inch
130.05mm = 5.12inch
Material
Nitrile
Nitrile
Outside Diameter
155.45mm = 6.12inch
155.45mm = 6.12inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
128.52mm = 5.06inch
128.52mm = 5.06inch
Material
Nitrile
Nitrile
Outside Diameter
155.45mm = 6.12inch
155.45mm = 6.12inch
Type
R23
R23
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
82.55mm = 3.25(3.1/4)inch
82.55mm = 3.25(3.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
107.95mm = 4.25(4.1/4)inch
107.95mm = 4.25(4.1/4)inch
Type
R23
R23
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
114.3mm = 4.5(4.1/2)inch
114.3mm = 4.5(4.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
152.4mm = 6inch
152.4mm = 6inch
Type
R23
R23
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
107.95mm = 4.25(4.1/4)inch
107.95mm = 4.25(4.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
152.4mm = 6inch
152.4mm = 6inch
Type
R21
R21
Width
14.22mm = 0.56inch
14.22mm = 0.56inch
Qty:
Inside Diameter
107.95mm = 4.25(4.1/4)inch
107.95mm = 4.25(4.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
152.4mm = 6inch
152.4mm = 6inch
Type
R23
R23
Width
14.22mm = 0.56inch
14.22mm = 0.56inch
Qty:
Inside Diameter
107.95mm = 4.25(4.1/4)inch
107.95mm = 4.25(4.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
152.4mm = 6inch
152.4mm = 6inch
Type
R21
R21
Width
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Qty:
Inside Diameter
120.65mm = 4.75(4.3/4)inch
120.65mm = 4.75(4.3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
152.4mm = 6inch
152.4mm = 6inch
Type
R21
R21
Width
14.22mm = 0.56inch
14.22mm = 0.56inch
Qty:
Inside Diameter
127mm = 5inch
127mm = 5inch
Material
Nitrile
Nitrile
Outside Diameter
152.4mm = 6inch
152.4mm = 6inch
Type
R23
R23
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
127mm = 5inch
127mm = 5inch
Material
Nitrile
Nitrile
Outside Diameter
152.4mm = 6inch
152.4mm = 6inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
114.3mm = 4.5(4.1/2)inch
114.3mm = 4.5(4.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
142.75mm = 5.62inch
142.75mm = 5.62inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
101.6mm = 4inch
101.6mm = 4inch
Material
Nitrile
Nitrile
Outside Diameter
146.05mm = 5.75(5.3/4)inch
146.05mm = 5.75(5.3/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
107.95mm = 4.25(4.1/4)inch
107.95mm = 4.25(4.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
146.05mm = 5.75(5.3/4)inch
146.05mm = 5.75(5.3/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
114.3mm = 4.5(4.1/2)inch
114.3mm = 4.5(4.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
146.05mm = 5.75(5.3/4)inch
146.05mm = 5.75(5.3/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
120.65mm = 4.75(4.3/4)inch
120.65mm = 4.75(4.3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
146.05mm = 5.75(5.3/4)inch
146.05mm = 5.75(5.3/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
127mm = 5inch
127mm = 5inch
Material
Nitrile
Nitrile
Outside Diameter
146.05mm = 5.75(5.3/4)inch
146.05mm = 5.75(5.3/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
107.95mm = 4.25(4.1/4)inch
107.95mm = 4.25(4.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
142.75mm = 5.62inch
142.75mm = 5.62inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
123.7mm = 4.87inch
123.7mm = 4.87inch
Material
Nitrile
Nitrile
Outside Diameter
149.1mm = 5.87inch
149.1mm = 5.87inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
110.998mm = 4.37inch
110.998mm = 4.37inch
Material
Nitrile
Nitrile
Outside Diameter
136.4mm = 5.37inch
136.4mm = 5.37inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
110.998mm = 4.37inch
110.998mm = 4.37inch
Material
Nitrile
Nitrile
Outside Diameter
136.4mm = 5.37inch
136.4mm = 5.37inch
Type
R21
R21
Width
10.92mm = 0.43inch
10.92mm = 0.43inch
Qty:
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