NSK L 20 deep groove ball bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
- Series
- L
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Description
NSK L 20 belongs to deep groove ball bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for L 20 and any equivalents.
The NSK L series covers single-row deep groove ball bearings identified by a light-section code. They suit applications where a slim bearing has to carry moderate radial and axial loads. Our team quotes by part number, and if you only have measurements, we can work from those too.
Reading the code is simple once you know the logic. The letter L marks the light-section family, and the two digits that follow point to a specific size within it. L 17 and L 20 are two examples. Those digits are not a bore measurement in millimeters; they are a reference that maps to a standardized bore, so always confirm against the drawing or the marking on the part before ordering.
Typical installations include small electric motors, fans, centrifugal pumps, packaging lines, lab equipment and light-duty transmissions. Maintenance teams in food processing, textile and printing operations also see this series regularly. It tends to appear wherever radial space is tight and a thin-section bearing is the practical choice.
Selection comes down to a few points: whether you need the open version, shields or seals, and how the bearing will be lubricated. Grease and oil are both used, and lithium grease is a frequent pick for moderate temperatures. Shaft and housing fits should match the load pattern, supports need proper alignment, and the raceways should not take impacts during mounting.
If the bearing in your hand carries a different brand, dimensions are the way to cross it. Bore, outside diameter and width, together with the sealing type, are enough to identify a match. No NSK number is required; a photo of the part works as well. Our team reviews the data and points you to the compatible option so the purchase is right the first time.
Send L 17, L 20 or whichever size you are replacing through WhatsApp or email to get a quote. Questions about other deep groove ball bearing series are welcome as well. We answer promptly and help you settle on the option that fits your equipment.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the L in an NSK bearing code indicate?
- It identifies a light-section deep groove ball bearing family. The digits after the L, such as in L 17 or L 20, refer to a size within that family. They are a code rather than a direct diameter, and they correspond to standardized bore dimensions.
- I have a bearing from another manufacturer. Can you find the equivalent?
- Yes. Share the bore, outside diameter and width, plus the sealing arrangement, and we will identify the matching option in the L series or in another suitable series. The original part number is not necessary.
- What matters most when installing a deep groove ball bearing?
- Support alignment, correct fits on the shaft and in the housing, and the right lubricant. Keep impacts away from the bearing during mounting. For dusty or damp conditions, a sealed version is usually the better choice.