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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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O-ring Cord
Imperial Ball Bearings
SKF Ball Bearings
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
34.8mm = 1.37inch
34.8mm = 1.37inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
41.15mm = 1.62inch
41.15mm = 1.62inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
14.22mm = 0.56inch
14.22mm = 0.56inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Inside Diameter
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R23
R23
Width
7.87mm = 0.31inch
7.87mm = 0.31inch
Inside Diameter
7.87mm = 0.31inch
7.87mm = 0.31inch
Material
Nitrile
Nitrile
Outside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
10.92mm = 0.43inch
10.92mm = 0.43inch
Material
Nitrile
Nitrile
Outside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
9.4mm = 0.37inch
9.4mm = 0.37inch
Material
Nitrile
Nitrile
Outside Diameter
22.1mm = 0.87inch
22.1mm = 0.87inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
9.4mm = 0.37inch
9.4mm = 0.37inch
Material
Nitrile
Nitrile
Outside Diameter
22.1mm = 0.87inch
22.1mm = 0.87inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
10.92mm = 0.43inch
10.92mm = 0.43inch
Material
Nitrile
Nitrile
Outside Diameter
22.1mm = 0.87inch
22.1mm = 0.87inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
22.1mm = 0.87inch
22.1mm = 0.87inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
22.1mm = 0.87inch
22.1mm = 0.87inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
23.62mm = 0.93inch
23.62mm = 0.93inch
Type
R21
R21
Width
4.57mm = 0.18inch
4.57mm = 0.18inch
Inside Diameter
9.4mm = 0.37inch
9.4mm = 0.37inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
9.4mm = 0.37inch
9.4mm = 0.37inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Inside Diameter
10.92mm = 0.43inch
10.92mm = 0.43inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
14.22mm = 0.56inch
14.22mm = 0.56inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R21
R21
Width
3.05mm = 0.12inch
3.05mm = 0.12inch
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
26.92mm = 1.06inch
26.92mm = 1.06inch
Type
R21
R21
Width
4.57mm = 0.18inch
4.57mm = 0.18inch
Inside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
7.87mm = 0.31inch
7.87mm = 0.31inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
25.4mm = 1inch
25.4mm = 1inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R23
R23
Width
7.87mm = 0.31inch
7.87mm = 0.31inch
Inside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Inside Diameter
14.22mm = 0.56inch
14.22mm = 0.56inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
14.22mm = 0.56inch
14.22mm = 0.56inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R23
R23
Width
7.87mm = 0.31inch
7.87mm = 0.31inch
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R23
R23
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
4.57mm = 0.18inch
4.57mm = 0.18inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
17.27mm = 0.68inch
17.27mm = 0.68inch
Material
Nitrile
Nitrile
Outside Diameter
29.97mm = 1.18inch
29.97mm = 1.18inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
10.92mm = 0.43inch
10.92mm = 0.43inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Inside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
34.8mm = 1.37inch
34.8mm = 1.37inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
33.27mm = 1.31inch
33.27mm = 1.31inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
Material
Nitrile
Nitrile
Outside Diameter
33.27mm = 1.31inch
33.27mm = 1.31inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
25.4mm = 1inch
25.4mm = 1inch
Material
Nitrile
Nitrile
Outside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
25.4mm = 1inch
25.4mm = 1inch
Material
Nitrile
Nitrile
Outside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Type
R21
R21
Width
3.05mm = 0.12inch
3.05mm = 0.12inch
Inside Diameter
22.1mm = 0.87inch
22.1mm = 0.87inch
Material
Nitrile
Nitrile
Outside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
22.1mm = 0.87inch
22.1mm = 0.87inch
Material
Nitrile
Nitrile
Outside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Type
R21
R21
Width
4.57mm = 0.18inch
4.57mm = 0.18inch
Inside Diameter
19.81mm = 0.78inch
19.81mm = 0.78inch
Material
Nitrile
Nitrile
Outside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Inside Diameter
10.92mm = 0.43inch
10.92mm = 0.43inch
Material
Nitrile
Nitrile
Outside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
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