About Ball and Roller Bearings
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About Plain Bearings
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One-Piece Thrust Ball Bearings
In addition to handling higher loads than three-piece ball bearings, one-piece bearings are easier to handle. They have an outer band that holds the bearing together and acts as a shield against dust and other contaminants.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Thick. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Features | Each | |
Shielded | |||||||||||
2 3/4" | 4 15/32" | 1" | Steel | 18,200 | 51,000 | 1,600 | Required | -40° to 245° | Lubrication Hole | 00000000 | 0000000 |
Tapered-Roller Bearings
Found anywhere from machine tool spindles to conveyor rollers, these bearings have a two-piece design that allows for adjustment.
Radial Load Cap., lbs. | Thrust Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Housing ID | Wd. | Bearing Trade Number | Dynamic | Static | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Each | |
Steel Ring | ||||||||||||
Open | ||||||||||||
2 3/4" | 4 7/16" | 3/4" | 29675/29620 | 5,950 | 37,200 | 4,950 | 52,800 | 1,600 | Required | -60° to 200° | 00000000 | 0000000 |
Precision Needle-Roller Bearings
Install these bearings directly onto hardened and ground shafts. They have higher load capacity, speed, and accuracy than standard needle-roller bearings.
Open bearings dissipate heat more efficiently than sealed bearings.
Sealed bearings block out dust and other contaminants.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microinch | Temp. Range., °F | Each | |
Open | |||||||||||
2 3/4" | 3 1/2" | 1 1/2" | Steel | 16,400 | 39,600 | 4,800 | Required | 16 | 0° to 245° | 00000000 | 000000 |
Sealed | |||||||||||
2 3/4" | 3 1/2" | 1 3/4" | Steel | 16,300 | 39,600 | 1,400 | Required | 16 | -30° to 250° | 00000000 | 000000 |
Needle-Roller Thrust Bearings
Thinner rollers allow these bearings to fit in tighter spaces than tapered-roller thrust bearings. Because of the large contact area between the rollers and washers (not included), these bearings are great for medium to heavy duty, low-friction jobs. For use on hardened and ground surfaces.
Washers allow you to use the bearing on unhardened and unground surfaces.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microns | Temp. Range, °F | Each | |
Steel Rollers | ||||||||||
Open | ||||||||||
2 3/4" | 3 5/8" | 1/8" | 10,700 | 57,500 | 4,600 | Required | 0.2 | 0° to 240° | 00000000 | 000000 |
Oil-Embedded Sleeve 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.
For Housing ID | Lg. | Dynamic Radial Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
For 2 3/4" Shaft Dia. | |||||||
---|---|---|---|---|---|---|---|
3" | 1 1/2" | 8,250 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
3" | 2 1/2" | 13,750 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 175° | 0000000 | 00000 |
3 1/8" | 2 3/4" | 15,100 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 175° | 00000000 | 00000 |
3 1/8" | 4" | 22,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 175° | 00000000 | 00000 |
3 1/4" | 1 1/2" | 8,250 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
3 1/4" | 2" | 11,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
3 1/4" | 3" | 16,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
3 1/4" | 4" | 22,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 175° | 00000000 | 000000 |
Oil-Embedded Flanged Sleeve 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.
For Housing ID | Lg. | Flange OD | Flange Thick. | Dynamic Radial Load Capacity | Dynamic Thrust Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
841 Bearing Bronze Bearings | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For 2 3/4" Shaft Dia. | ||||||||||
3 1/4" | 1 1/2" | 4" | 3/16" | 8,250 lbs. @ 30 rpm | 10,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
Multipurpose Flanged Sleeve Bearings
These bronze bearings are strong, wear resistant, and excellent at handling shock loads. They’re sometimes called 660 leaded bronze 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.
For Housing ID | Lg. | Flange OD | Flange Thick. | Dynamic Radial Load Capacity | Dynamic Thrust Load Capacity | Lubrication | Temperature Range, °F | Each | |
932 Bearing Bronze Bearings | |||||||||
---|---|---|---|---|---|---|---|---|---|
For 2 3/4" Shaft Dia. | |||||||||
3 1/4" | 1 1/2" | 4" | 3/16" | 14,300 lbs. @ 30 rpm | 15,800 lbs. @ 30 rpm | Required | -350° to 450° | 00000000 | 000000 |
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 |
High-Temperature Dry-Running Thrust Bearings
Graphite provides a layer of dry lubrication that operates in high-temperature environments.
Graphalloy bearings perform at extreme temperatures and under water. They are electrically conductive and wear resistant. They’re also our highest temperature thrust 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 | Temperature Range, °F | Each | |
Graphalloy Bearings | |||||
---|---|---|---|---|---|
For 2 3/4" Shaft Dia. | |||||
5 7/16" | 31/64" | 5,000 lbs. @ 24 rpm | -450° to 750° | 0000000 | 0000000 |
Mounted Ball Bearings
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Bearings with nickel-plated cast iron housing are more corrosion resistant and durable than bearings with a cast iron housing.
Bearings with a set screw secure to shafts without using a collar. They let shafts rotate in both directions, so they’re good for applications where you need to reverse. However, the set screw will leave some marring on the shaft.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Hole Lg. | Hole Wd. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Nickel-Plated Cast Iron Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
2 3/4" | 3 1/8" | 6 3/16" | 10 15/32" | 3 5/32" | 1 3/16" | 31/32" | 8 9/32" | 13,950 | 9,900 | 2,000 | 0° to 210° | Self Aligning | Lubricated | 0000000 | 0000000 |
Mounted Roller Bearings
Roller bearings have a thinner profile and larger contact area than ball bearings, making them stronger and more space-efficient than ball bearings.
Sealed bearings block out dust and contaminants.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Hole Lg. | Hole Wd. | Hole Ctr.-to-Ctr. | Dynamic | Static | Dynamic Thrust Load Cap., lbs. | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Steel Bearings with Cast Iron Housing—Shaft Mount Type: Set Screw | ||||||||||||||||
2 3/4" | 3 1/8" | 6 1/4" | 12" | 4 1/2" | 1" | 27/32" | 9 1/2" | 12,300 | 61,000 | 5,150 | 2,000 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 0000000 |
Quick-Disconnect (QD) Bushings
The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Keyway | ||||||||
---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Overall Wd. | Wd. | Dp. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
Clamp On | ||||||||
SF Style Bushing | ||||||||
2 3/4" | 2 1/16" | 5/8" | 1/16" | 360 | Cast Iron | Clamping Screws, Machine Key | 00000000 | 000000 |
Taper-Lock Bushings
Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws. They are for use with taper-lock sprockets of the same bushing style. As you tighten the included set screws, the bushing grips the shaft and pulls it into your sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Keyway | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Overall Wd. | Wd. | Dp. | Taper | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
3020 Style Bushing | |||||||||
2 3/4" | 2" | 5/8" | 5/16" | 8° | 800 | Steel | Set Screws | 000000000 | 000000 |