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Ships within 48 hours · Estimated delivery Jun 20 - Jun 25
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Description
512 412 050 R21/SC Single Lip Nitrile Rotary Shaft Oil Seal with Garter Spring 4.1/8x5.1/8x1/2 InchSeals are ideal for excluding dirt, dust, water or any other contaminant whilst retaining lubricant in rotary shaft equipment. They are generally used as a means of protecting the bearings of rotating shafts. The term nitrile rubber is used for acrylonitrile butadiene rubber (NBR). This material has very good engineering properties and is a general purpose sealing lip material. It is a copolymer manufactured from acrylonitrile and butadiene that
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- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 771 reviews
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Product Reviews
★★★★★ 5
Does what it says
Size: 10 Inch
Does what it says and holds up
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Just as described
Size: 20 Inch
Easy installation. All parts are included.
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Reviewed in the United States on May 11, 2026
★★★★★ 1
Is not square when in the locked open position.
Size: 24 Inch, Size: 24 Inch
Purchased 2 sets of these to make a folding wing on my workbench. Didn’t expect great quality but did expect 90 degrees. Installed and the end of my 27” wing is 25mm higher than the fixed end. Measured bracket and hypotenuse and ran some quick cosine to discover the bracket is actually 91.286degrees. There is zero adjustment capability on these. Buyer beware
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Reviewed in the United States on February 14, 2026
★★★★★ 5
Good shelf.
Size: 8 Inch
Great small shelf easy to install.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Well made
I have not installed this yet but it is well made at a good price and should give me extra space in my camper
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Reviewed in the United States on April 20, 2026
