
SKF HN 20/SNL lock nut
- Brand
- SKF
- Category
- Bushings and sleeves
- Subcategory
- Lock nut
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Other brands for this category
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Description
SKF HN 20/SNL belongs to lock nut, part of our Bushings and sleeves range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for HN 20/SNL and any equivalents.
For maintenance and purchasing teams working with SNL split plummer block housings, the SKF HN/SNL series lock nut is the component that locks the bearing inner ring onto the shaft. Paired with the correct lock washer, it holds the bearing in position and simplifies both mounting and dismounting. MR Industrial Accessories LLC supplies this line alongside its range of power transmission and mounting parts for customers in the United States and Latin America.
Reading the code is the first step in selection. The letters HN come first, then a number that identifies the size, and SNL follows. That number is not a thread diameter or a shaft measurement; it is a reference that ties the nut to a specific SNL housing size. HN 5/SNL, for instance, is the size 5 nut for SNL housings, and the pattern continues for the other numbers in the range. Keeping this housing-to-nut match is what ensures the assembly goes together correctly.
These nuts are common in food processing, cement, mining and metallurgy plants, where SNL split housings are widely used. Typical mounting points include conveyor shafts, mills, mixers and other rotating equipment. Because the nut can be adjusted with standard tools, it also makes routine maintenance and bearing replacement easier to carry out.
To choose the right nut, start by identifying the SNL housing and the bearing it will hold. The nut number must agree with the housing number. During mounting, use the matching lock washer and tighten to the specified torque. It also pays to check shaft and housing alignment, since misalignment adds loads that can affect the bearing and the nut.
On interchangeability, HN/SNL lock nuts can be replaced by products from other makers that use the same designation and standard dimensions. Even so, confirm the thread and dimensions against the housing and bearing before substituting. The MR team can review your application and point you to the correct nut.
To request a quote, send the housing code or nut number by WhatsApp or email. The team replies promptly and can suggest equivalents or help you confirm the right choice for your mounting needs.
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
- How do I find the correct HN/SNL nut for my housing?
- The number in the nut designation corresponds to the SNL housing number. For example, HN 5/SNL fits size 5 SNL housings. Check the code on your housing and select the nut with the same number.
- Does the lock washer come with the nut?
- Nuts and washers are usually supplied as separate items. Contact us with your housing details and we can indicate the suitable washer for your setup.
- Can I use a different brand of nut with my SKF housing?
- Yes, provided the nut follows the standard dimensions and thread pitch for SNL housings. Verify compatibility first; we can help you evaluate the options.

