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Lock washer BGL MBL38
- Manufacturer Part Number
- MBL38
- Brand
- BGLExclusive representative in Argentina
- Category
- Bushings and sleeves
- Subcategory
- Lock washer
Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
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Request your quote via WhatsApp or email, with the quantity and time frame you need.
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Description
BGL MBL38 is a lock washer reference, within Bushings and sleeves. Request a quote for MBL38 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The BGL MBL series lock washer is a fastening accessory placed between the KM nut and the mounting sleeve to prevent the nut from loosening due to vibration. Its design with a straight internal tooth engages in the sleeve groove and its tabs are bent over the nut. It is made of carbon steel, with a stainless steel option, and is available in several sizes for shafts of different diameters.
The MBL… designation identifies the washer by the shaft or sleeve diameter to which it corresponds. For example, MBL24, MBL26 and MBL28 cover 24, 26 and 28 mm shafts, respectively, while MBL30, MBL32, MBL34, MBL36 and MBL38 are intended for larger diameters. The numeric suffix does not indicate the thickness or width of the washer, but the size of the sleeve-nut assembly with which it works. To select the correct washer, you must identify the adapter sleeve and the KM nut to be mounted.
These washers are used in a wide variety of industrial equipment in Argentina: gearboxes, pumps, fans, conveyors, machine tools and belt or chain drive systems. They always accompany adapter sleeves with KM nuts, which are common in bearings mounted on tapered shafts or adapter sleeves. They also appear in applications requiring secure and removable fastening, such as equipment that must be disassembled for periodic maintenance.
For correct installation, first place the sleeve on the shaft and thread the KM nut without fully tightening it. Then position the lock washer so that its internal tooth engages in the sleeve groove. Next, tighten the nut with the appropriate wrench and, finally, bend one of the outer tabs of the washer over one face of the nut to immobilize it. It is essential that the internal tooth is properly seated; if it does not engage, the lock is not effective. In corrosive environments or with frequent washdowns, the stainless steel version should be chosen.
MBL lock washers are interchangeable with those of other brands that follow the same standard for sleeves and KM nuts. When looking for a replacement, the safest approach is to compare the shaft diameter, the sleeve thread pitch and the shape of the internal tooth. The MB, MBL and MBA series share the straight internal tooth, while the AW series has an inclined tooth and is not directly interchangeable. If in doubt, the original washer code or the sleeve size allows you to identify the equivalent part.
To request a quote for your BGL MBL series lock washer, write to us on WhatsApp with the full code (for example, MBL30) or with the sleeve size and the KM nut you are using. At MR Accesorios Industriales we send you the quote promptly and advise you so that you receive the correct part. We can also help you identify the reference if you show us a photo of the washer or the assembly where it is mounted.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
- Weight
- 0.19 kg
Frequently Asked Questions
- What is the MBL lock washer used for?
- It is used to immobilize the KM nut that tightens an adapter sleeve. Its internal tooth locks into the sleeve groove and its tabs are bent over the nut, preventing it from loosening due to vibration or variable loads.
- What is the difference between the MB, MBL, MBA and AW series?
- The MB, MBL and MBA series have a straight internal tooth and differ in dimensions and application. The AW series has an inclined tooth, which makes it suitable for other mounting configurations. They are not interchangeable with each other without verifying compatibility.
- How do I choose the correct MBL washer size?
- The size comes from the adapter sleeve and the KM nut you are going to mount. The number in the code (for example, MBL30) indicates the shaft or sleeve diameter. If you are not sure, send us the nut code or the shaft size and we will help you.

