Bearing Lock Nuts

With a nylon insert that grips your threaded shaft or spindle without damaging the threads, these locknuts—sometimes called shaft nuts—keep bearings, bushings, gears, and pulleys in place. They won’t shake loose from vibration. However, their nylon insert also means you shouldn’t use these locknuts in applications with high temperatures. Their sides are slotted, so you can tighten and loosen them with a spanner wrench. To reduce the total size and weight of your assembly, they have chamfered edges.

All meet international standards for bearing locknut dimensions.

Carbon steel locknuts are strong and wear resistant. Zinc-plated steel locknuts have an outer layer of zinc that prevents the steel from rusting in wet areas. Compared to stainless steel, they're stronger, more wear resistant, and less costly, but not as corrosion resistant. Avoid exposing them to salt water and chemicals. 303 stainless steel locknuts are nearly as strong as carbon steel but won’t rust in outdoor, washdown, and other corrosive environments.

When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.

Bearing Number	Bore Dia	Outer DIa	Width	Size
SKF HM 3080 Bearing Lock Nuts	111 kN	23028 CCK/W33	62.6 kg	185 kN
SKF HM 3084 Bearing Lock Nuts	8.5 kN	53.6 mm	0.24 kg	38 N/µm
FAG KM40 Bearing Lock Nuts	2 mm	8000 r/min	35.25 mm	0.35
SKF N 092 Bearing Lock Nuts	900 mm	1860.940 kg	1800	31500
FAG HM44T Bearing Lock Nuts	10 mm	mm	10 mm	1540 mm
SKF HM 50 T Bearing Lock Nuts	1.00 mm	52.0000 mm	17000 rpm	20.000 mm
SKF KMTA 22 Bearing Lock Nuts	85.000 mm	49.20 mm	3600 rpm	2600 rpm
FAG HM3052 Bearing Lock Nuts	SAFS 640	101.6 mm	2 x B10724-161	163.512 mm
FAG KML34 Bearing Lock Nuts	PL 72	5	290.246 mm	359.918 mm
FAG KML36 Bearing Lock Nuts	371 kN	950 r/min	2 mm	31.5 kN
SKF N 032 Bearing Lock Nuts	4 mm	600 mm	12 mm	148 mm
SKF KMT 36 Bearing Lock Nuts	25	74.9 mm	1.06	0.6 mm