Seals for 3 7/8" Shafts | McMaster-Carr

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	Material Material

	System of Measurement System of Measurement

	Color Color

	Black

	For Use With For Use With

Calcium Hydroxide

Diluted Salt Solutions

Ethylene Glycol

Petroleum Fluids

Sodium Bicarbonate

Transmission Fluid

	Maximum Temperature Maximum Temperature

250° to 499° F

	For Shaft Diameter For Shaft Diameter	Show

	For Shaft Diameter For Shaft Diameter	Hide

0.210" to 0.260"

0.217" to 0.256"

0.370" to 0.450"

0.374" to 0.453"

0.450" to 0.530"

0.453" to 0.492"

0.498" to 0.502"

0.610" to 0.689"

0.610" to 0.690"

0.623" to 0.627"

0.690" to 0.770"

0.748" to 0.752"

0.748" to 0.827"

0.827" to 0.945"

0.873" to 0.877"

0.945" to 1.063"

0.950" to 1.070"

0.998" to 1.002"

1.063" to 1.142"

1.123" to 1.127"

1.220" to 1.299"

1.220" to 1.300"

1.247" to 1.253"

1.299" to 1.417"

1.375" to 1.381"

1.496" to 1.693"

1.497" to 1.503"

1.500" to 1.700"

1.622" to 1.628"

1.693" to 1.890"

1.700" to 1.890"

1.747" to 1.753"

1.872" to 1.878"

1.890" to 2.087"

1.890" to 2.090"

1.997" to 2.003"

2.087" to 2.283"

2.090" to 2.290"

2.123" to 2.128"

2.249" to 2.255"

2.283" to 2.48"

2.374" to 2.380"

2.480" to 2.677"

2.480" to 2.680"

2.500" to 2.506"

2.625" to 2.631"

2.677" to 2.874"

2.680" to 2.880"

2.750" to 2.756"

2.873" to 2.879"

2.874" to 3.071"

2.880" to 3.070"

3.000" to 3.006"

3.070" to 3.270"

3.071" to 3.268"

3.465" to 3.661"

3.470" to 3.660"

3.661" to 3.858"

3.858" to 4.134"

3.860" to 4.140"

11.500 to 12.500mm

13.500 to 15.500mm

15.500 to 17.500mm

19.000 to 21.000mm

24.000 to 27.000mm

29.000 to 31.000mm

33.000 to 36.000mm

38.000 to 43.000mm

48.000 to 53.000mm

	Seal ID Seal ID

	For Motion Type For Motion Type

	Rotary

	Seal OD Seal OD

	For Bore Diameter For Bore Diameter

	Case Color Case Color

	Black

	Case Material Case Material

	For Minimum Bore Width For Minimum Bore Width

	For Sealing For Sealing

	Hardness Hardness

	Loader Type Loader Type

	Spring

	Maximum Pressure Maximum Pressure

	Maximum Speed Maximum Speed

	Minimum Temperature Minimum Temperature

	Reinforcement Type Reinforcement Type

	Spring Material Spring Material

Stainless Steel

	Seal Width Seal Width

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1 Product

Split Rotary Shaft Seals

Side 1

Side 2

Profile

Replace old seals without disassembling components—these seals come split for easy installation. Also known as clipper seals, they retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. A spring secures the lip to prevent leaks; fasten the hook and eye closure to secure. Press-fit seals into the housing bore; they fit tight for installation without a cover plate.

Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.

For technical drawings and 3-D models, click on a part number.

	For Bore
For Shaft Dia.	Dia.	Min. Wd.	Max. Speed, rpm	Temp. Range, °F	Hardness	Color	Case Color		Each
Buna-N Rubber with Aramid Fiber Case and Stainless Steel Spring

3 7/8"	4.875"	0.500"	2,000	-20° to 250°	Durometer 75A (Hard)	Black	Black	0000000	000000

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The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)