About Plain Bearings
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About Shaft Collars
Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.
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Oil-Embedded Thrust Bearings
Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface. They are also known as Oilite® bearings.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
OD | Thick. | Dynamic Thrust Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
For 2 3/4" Shaft Dia. | |||||||
---|---|---|---|---|---|---|---|
3 7/8" | 1/4" | 9,600 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
Ultra-Low-Friction Oil-Embedded Thrust Bearings
For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
OD | Thick. | Dynamic Thrust Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Specifications Met | Each | |
For 2 3/4" Shaft Dia. | ||||||||
---|---|---|---|---|---|---|---|---|
3 7/8" | 1/4" | 9,800 lbs. @ 30 rpm | Lubricated | SAE 20 Oil with PTFE | -60° to 300° | ASTM B438 | 00000000 | 000000 |
High-Load Ultra-Low-Friction Oil-Embedded Thrust Bearings
Handle heavy loads that frequently start and stop along shafts—these bearings contain extra iron and slippery PTFE lubricant. Startup friction causes a thin layer of PTFE to release onto the surface. Thanks to their high iron content, they also resist failing if their load suddenly and drastically increases, but they won’t run as fast as standard bearings. They’re thrust bearings, which means they support loads parallel to the shaft.
For technical drawings and 3-D models, click on a part number.
OD | Thickness | Dynamic Thrust Load Capacity | Lubrication | Lubrication Method | Temp. Range, °F | Each | |
For 2 3/4" Shaft Dia. | |||||||
---|---|---|---|---|---|---|---|
3 7/8" | 1/4" | 6,600 lbs. @ 30 rpm | Lubricated | Embedded | -60° to 300° | 00000000 | 000000 |
Wide-Rim Ring Shims
Also known as machinery bushings, these shims have an oversized OD to create a larger bearing surface for reduced wear between moving parts. Use them to precisely align, level, and adjust spacing on shafts and machinery.
Carbon steel shims have excellent strength and can be welded.
A zinc-plated finish adds a layer of corrosion resistance.
For technical drawings and 3-D models, click on a part number.
ID | ID Tolerance | OD | OD Tolerance | Material | Min. Hardness | Magnetic Properties | Pkg. Qty. | Pkg. | |
0.134" Thick. (-0.008" to 0.008" Tolerance) | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 1/2" | 0.01" to 0.025" | 3 7/8" | -0.01" to 0.01" | 1008-1010 Carbon Steel | Rockwell B38 | Magnetic | 1 | 000000000 | 00000 |
ID | ID Tolerance | OD | OD Tolerance | Material | Min. Hardness | Magnetic Properties | Pkg. Qty. | Pkg. | |
0.134" Thick. (-0.008" to 0.008" Tolerance) | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 1/2" | 0.01" to 0.025" | 3 7/8" | -0.01" to 0.01" | Zinc-Plated 1008-1010 Carbon Steel | Rockwell B38 | Magnetic | 1 | 000000000 | 00000 |
Bearing Retaining Locknuts
With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions.
When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.
All carbon steel locknuts are strong and resist wear, though they don’t stand up to corrosion as well as stainless steel locknuts. 303 stainless steel locknuts resist corrosion better than steel locknuts but aren’t as strong. They withstand washdowns and chemicals.
For technical drawings and 3-D models, click on a part number.
Locknuts | |||||||||
---|---|---|---|---|---|---|---|---|---|
Thread | Spanner Sockets | ||||||||
Size | Spacing | OD | Wd. | Insert Max. Temp., °F | Specifications Met | Each | Each | ||
Carbon Steel | |||||||||
Chamfered Face | |||||||||
2.933"-12 | Extra Fine | 3 7/8" | 21/32" | 160° | ANSI/ABMA 8.2 | 0000000 | 000000 | 00000000 | 0000000 |
303 Stainless Steel | |||||||||
Chamfered Face | |||||||||
2.933"-12 | Extra Fine | 3 7/8" | 21/32" | 160° | ANSI/ABMA 8.2 | 0000000 | 000000 | 00000000 | 000000 |
Bearing Retaining Nuts
Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket.
Chamfered-face retaining nuts weigh less and produce less heat than stepped-face nuts.
Carbon steel retaining nuts are strong and resist wear.
303 stainless steel retaining nuts resist corrosion better than steel. They also withstand washdowns and chemicals.
For technical drawings and 3-D models, click on a part number.
Nuts | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Thread | Optional Washers | Spanner Sockets | |||||||||
Size | Spacing | OD | Wd. | Specifications Met | For Lock Washer Specifications Met | Each | Each | Each | |||
Carbon Steel | |||||||||||
Chamfered Face | |||||||||||
2.933"-12 | Extra Fine | 3 7/8" | 19/32" | ANSI/ABMA 8.2 | ANSI/ABMA 8.2 | 00000000 | 000000 | 000000000 | 00000 | 00000000 | 0000000 |
303 Stainless Steel | |||||||||||
Chamfered Face | |||||||||||
2.933"-12 | Extra Fine | 3 7/8" | 19/32" | ANSI/ABMA 8.2 | ANSI/ABMA 8.2 | 0000000 | 000000 | 000000000 | 00000 | 00000000 | 000000 |