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FAG KM21 lock nut is a precision accessory for securing bearings on shafts. With a 105mm bore and 140mm outer diameter, this lock nut ensures reliable clamping and easy installation. Designed for use with FAG pillow block housings and adapter sleeves, it provides secure axial location and prevents loosening under vibration. Manufactured to Schaeffler quality standards.
MODEL KM21
$188.69 Each
Prices are subject to change
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Returnable:No
Bearing Type
Bearing Lock Nuts
Face Diameter
126 mm
I.D.
4.134
Lock Nut Type
For Lock Washer
Lock Washer Locking Device Part Num
MB21
Material
Steel
O.D.
5.512
Overall Width
18 mm
Product Type
Bearing Lock Nuts
Series
KM
Thread Size
M105x2 mm, M105x2 mm
Specifications
| Thread | M105X2 | d 2G |
|---|---|---|
| D m | 140 mm | |
| b 1 | 18 mm |
| Chamfer angle | 30 ° | |
|---|---|---|
| D a | 126 mm | |
| m | 12 mm | |
| n | 5 mm |
| Mass, nut | 0, 87 kg | m 1 |
|---|---|---|
| Designation, retainer | MB21 |
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
| Brand | PIP |
| Model | 302-0702Z-LY/L |
| Brand | Fenner Industrial Motion |
| Model | 4905015 |
