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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
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
28.45mm = 1.12inch
28.45mm = 1.12inch
Material
Nitrile
Nitrile
Outside Diameter
53.85mm = 2.12inch
53.85mm = 2.12inch
Type
R21
R21
Width
7.87mm = 0.31inch
7.87mm = 0.31inch
Qty:
Inside Diameter
69.85mm = 2.75(2.3/4)inch
69.85mm = 2.75(2.3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
88.9mm = 3.5(3.1/2)inch
88.9mm = 3.5(3.1/2)inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
57.15mm = 2.25(2.1/4)inch
57.15mm = 2.25(2.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
88.9mm = 3.5(3.1/2)inch
88.9mm = 3.5(3.1/2)inch
Type
R23
R23
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
63.5mm = 2.5(2.1/2)inch
63.5mm = 2.5(2.1/2)inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
22.1mm = 0.87inch
22.1mm = 0.87inch
Material
Nitrile
Nitrile
Outside Diameter
34.8mm = 1.37inch
34.8mm = 1.37inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Qty:
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
4.57mm = 0.18inch
4.57mm = 0.18inch
Qty:
Inside Diameter
25.4mm = 1inch
25.4mm = 1inch
Material
Nitrile
Nitrile
Outside Diameter
50.8mm = 2inch
50.8mm = 2inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Qty:
Inside Diameter
25.4mm = 1inch
25.4mm = 1inch
Material
Nitrile
Nitrile
Outside Diameter
44.45mm = 1.75(1.3/4)inch
44.45mm = 1.75(1.3/4)inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Qty:
Inside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Material
Nitrile
Nitrile
Outside Diameter
38.1mm = 1.5(1.1/2)inch
38.1mm = 1.5(1.1/2)inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Qty:
Inside Diameter
38.1mm = 1.5(1.1/2)inch
38.1mm = 1.5(1.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
50.8mm = 2inch
50.8mm = 2inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Qty:
Inside Diameter
38.1mm = 1.5(1.1/2)inch
38.1mm = 1.5(1.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
50.8mm = 2inch
50.8mm = 2inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
9.4mm = 0.37inch
9.4mm = 0.37inch
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
Qty:
Inside Diameter
38.1mm = 1.5(1.1/2)inch
38.1mm = 1.5(1.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
57.15mm = 2.25(2.1/4)inch
57.15mm = 2.25(2.1/4)inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
50.8mm = 2inch
50.8mm = 2inch
Material
Nitrile
Nitrile
Outside Diameter
76.2mm = 3inch
76.2mm = 3inch
Type
R23
R23
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
34.8mm = 1.37inch
34.8mm = 1.37inch
Material
Nitrile
Nitrile
Outside Diameter
57.15mm = 2.25(2.1/4)inch
57.15mm = 2.25(2.1/4)inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
76.2mm = 3inch
76.2mm = 3inch
Material
Nitrile
Nitrile
Outside Diameter
95.25mm = 3.75(3.3/4)inch
95.25mm = 3.75(3.3/4)inch
Type
R23
R23
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
50.8mm = 2inch
50.8mm = 2inch
Type
R23
R23
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
57.15mm = 2.25(2.1/4)inch
57.15mm = 2.25(2.1/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
41.15mm = 1.62inch
41.15mm = 1.62inch
Material
Nitrile
Nitrile
Outside Diameter
57.15mm = 2.25(2.1/4)inch
57.15mm = 2.25(2.1/4)inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
29.97mm = 1.18inch
29.97mm = 1.18inch
Material
Nitrile
Nitrile
Outside Diameter
44.45mm = 1.75(1.3/4)inch
44.45mm = 1.75(1.3/4)inch
Type
R21
R21
Width
4.57mm = 0.18inch
4.57mm = 0.18inch
Qty:
Inside Diameter
38.1mm = 1.5(1.1/2)inch
38.1mm = 1.5(1.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
57.15mm = 2.25(2.1/4)inch
57.15mm = 2.25(2.1/4)inch
Type
R21
R21
Width
7.87mm = 0.31inch
7.87mm = 0.31inch
Qty:
Inside Diameter
25.4mm = 1inch
25.4mm = 1inch
Material
Nitrile
Nitrile
Outside Diameter
50.8mm = 2inch
50.8mm = 2inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Qty:
Inside Diameter
38.1mm = 1.5(1.1/2)inch
38.1mm = 1.5(1.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
52.32mm = 2.06inch
52.32mm = 2.06inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Qty:
Inside Diameter
25.4mm = 1inch
25.4mm = 1inch
Material
Nitrile
Nitrile
Outside Diameter
41.15mm = 1.62inch
41.15mm = 1.62inch
Type
R21
R21
Width
7.87mm = 0.31inch
7.87mm = 0.31inch
Qty:
Inside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)inch
Material
Nitrile
Nitrile
Outside Diameter
49.02mm = 1.93inch
49.02mm = 1.93inch
Type
R21
R21
Width
10.92mm = 0.43inch
10.92mm = 0.43inch
Qty:
Inside Diameter
53.85mm = 2.12inch
53.85mm = 2.12inch
Material
Nitrile
Nitrile
Outside Diameter
76.2mm = 3inch
76.2mm = 3inch
Type
R23
R23
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
29.97mm = 1.18inch
29.97mm = 1.18inch
Material
Nitrile
Nitrile
Outside Diameter
50.8mm = 2inch
50.8mm = 2inch
Type
R21
R21
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Qty:
Inside Diameter
22.1mm = 0.87inch
22.1mm = 0.87inch
Material
Nitrile
Nitrile
Outside Diameter
41.15mm = 1.62inch
41.15mm = 1.62inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Material
Nitrile
Nitrile
Outside Diameter
53.85mm = 2.12inch
53.85mm = 2.12inch
Type
R23
R23
Width
7.87mm = 0.31inch
7.87mm = 0.31inch
Qty:
Inside Diameter
50.8mm = 2inch
50.8mm = 2inch
Material
Nitrile
Nitrile
Outside Diameter
79.25mm = 3.12inch
79.25mm = 3.12inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
28.45mm = 1.12inch
28.45mm = 1.12inch
Material
Nitrile
Nitrile
Outside Diameter
57.15mm = 2.25(2.1/4)inch
57.15mm = 2.25(2.1/4)inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
41.15mm = 1.62inch
41.15mm = 1.62inch
Material
Nitrile
Nitrile
Outside Diameter
57.15mm = 2.25(2.1/4)inch
57.15mm = 2.25(2.1/4)inch
Type
R23
R23
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
76.2mm = 3inch
76.2mm = 3inch
Material
Nitrile
Nitrile
Outside Diameter
101.6mm = 4inch
101.6mm = 4inch
Type
R23
R23
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
34.8mm = 1.37inch
34.8mm = 1.37inch
Material
Nitrile
Nitrile
Outside Diameter
50.8mm = 2inch
50.8mm = 2inch
Type
R23
R23
Width
10.92mm = 0.43inch
10.92mm = 0.43inch
Qty:
Inside Diameter
34.8mm = 1.37inch
34.8mm = 1.37inch
Material
Nitrile
Nitrile
Outside Diameter
58.67mm = 2.31inch
58.67mm = 2.31inch
Type
R21
R21
Width
10.92mm = 0.43inch
10.92mm = 0.43inch
Qty:
Inside Diameter
33.27mm = 1.31inch
33.27mm = 1.31inch
Material
Nitrile
Nitrile
Outside Diameter
53.85mm = 2.12inch
53.85mm = 2.12inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
60.2mm = 2.37inch
60.2mm = 2.37inch
Material
Nitrile
Nitrile
Outside Diameter
76.2mm = 3inch
76.2mm = 3inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
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
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
4.57mm = 0.18inch
4.57mm = 0.18inch
Qty:
Inside Diameter
38.1mm = 1.5(1.1/2)inch
38.1mm = 1.5(1.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
57.15mm = 2.25(2.1/4)inch
57.15mm = 2.25(2.1/4)inch
Type
R23
R23
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
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
Qty:
Inside Diameter
42.67mm = 1.68inch
42.67mm = 1.68inch
Material
Nitrile
Nitrile
Outside Diameter
63.5mm = 2.5(2.1/2)inch
63.5mm = 2.5(2.1/2)inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
33.27mm = 1.31inch
33.27mm = 1.31inch
Material
Nitrile
Nitrile
Outside Diameter
47.5mm = 1.87inch
47.5mm = 1.87inch
Type
R21
R21
Width
7.87mm = 0.31inch
7.87mm = 0.31inch
Qty:
Inside Diameter
34.8mm = 1.37inch
34.8mm = 1.37inch
Material
Nitrile
Nitrile
Outside Diameter
50.8mm = 2inch
50.8mm = 2inch
Type
R21
R21
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
38.1mm = 1.5(1.1/2)inch
38.1mm = 1.5(1.1/2)inch
Material
Nitrile
Nitrile
Outside Diameter
63.5mm = 2.5(2.1/2)inch
63.5mm = 2.5(2.1/2)inch
Type
R23
R23
Width
12.7mm = 0.5(1/2)inch
12.7mm = 0.5(1/2)inch
Qty:
Inside Diameter
50.8mm = 2inch
50.8mm = 2inch
Material
Nitrile
Nitrile
Outside Diameter
69.85mm = 2.75(2.3/4)inch
69.85mm = 2.75(2.3/4)inch
Type
R21
R21
Width
9.4mm = 0.37inch
9.4mm = 0.37inch
Qty:
Inside Diameter
15.75mm = 0.62inch
15.75mm = 0.62inch
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
Qty:
Inside Diameter
19.05mm = 0.75(3/4)inch
19.05mm = 0.75(3/4)inch
Material
Nitrile
Nitrile
Outside Diameter
38.1mm = 1.5(1.1/2)inch
38.1mm = 1.5(1.1/2)inch
Type
R23
R23
Width
6.35mm = 0.25(1/4)inch
6.35mm = 0.25(1/4)inch
Qty:
Inside Diameter
31.75mm = 1.25(1.1/4)inch
31.75mm = 1.25(1.1/4)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
Qty: