System of Measurement System of Measurement |
|---|
|
For Shaft Diameter For Shaft Diameter | Show |
|---|
|
For Shaft Diameter For Shaft Diameter | Hide |
|---|
For Load Direction For Load Direction |
|---|
 | Radial |
 | Combined Radial and Thrust |
 | Thrust |
 | Combined Radial, Thrust, and Moment |
Mounted Bearing Type Mounted Bearing Type |
|---|
 |  |
| Base Mount | Four-Bolt Flange Mount |
Dynamic Radial Load Capacity Dynamic Radial Load Capacity |
|---|
Static Radial Load Capacity Static Radial Load Capacity |
|---|
|
|
Ball Bearing Type Ball Bearing Type |
|---|
 |  |
| Standard | With Retaining Ring |
For Shaft Type For Shaft Type |
|---|
 | Round |
Alignment Style Alignment Style |
|---|
|
Lubrication Lubrication |
|---|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
|---|
Static Thrust Load Capacity Static Thrust Load Capacity |
|---|
|
Maximum Temperature Maximum Temperature |
|---|
|
About Linear Bearings
More
About Plain Bearings
More
About Ball and Roller Bearings
More
Set Screw Collar Ball Bearings
Slip these bearings onto a shaft and secure with the included set screws, no special tools required. All have an extended inner ring for additional shaft support.
Bearings with a black-oxide steel ring have some corrosion resistance.
Sealed bearings block out dust and other contaminants better than shielded bearings.
Bearings with a retaining ring have a removable retaining ring that holds the bearing inside a housing.
For technical drawings and 3-D models, click on a part number.
Inner Ring | Retaining Ring | Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | OD | Wd. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | ABEC Rating | Each | |
Sealed (Lubricated) | ||||||||||||||
Black-Oxide Steel—With Retaining Ring | ||||||||||||||
| ER40 | 2 1/2" | 4.922" | 1 3/8" | 3.4375" | 2.75" | 5 9/32" | 0.10938" | 13,950 | 10,050 | 2,500 | -20° to 220° | ABEC-1 | 0000000 | 0000000 |
Ultra-Thin Ball Bearings
These bearings have twice as many contact points as angular-contact ball bearings. Fit onto large-diameter hollow shafts to run air and hydraulic lines, electrical wiring, and other components through moving parts in assemblies such as index and rotary tables, packaging equipment, and robotics.
Open bearings dissipate heat more efficiently than shielded bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | Thrust Load Cap., lbs. | Moment Load Cap., ft.-lbs. | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | For Housing ID | Wd. | Dynamic | Static | Dynamic | Static | Dynamic | Static | Max. Speed, rpm | Lubrication | Contact Angle | Temp. Range, °F | ABEC Rating | Each | |
Steel Ring | |||||||||||||||
Open | |||||||||||||||
| 2 1/2" | 3" | 1/4" | 580 | 830 | 910 | 2,050 | 50 | 95 | 1,200 | Required | 30° | -60° to 250° | ABEC-1F | 0000000 | 0000000 |
| 2 1/2" | 3 1/8" | 5/16" | 840 | 1,100 | 1,250 | 2,800 | 70 | 130 | 1,200 | Required | 30° | -60° to 250° | ABEC-1F | 0000000 | 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 1/2" Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 2 3/4" | 2" | 9,800 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
| 2 3/4" | 2 1/2" | 12,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 3/4" | 3" | 14,800 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 7/8" | 2 1/4" | 11,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 7/8" | 2 1/2" | 12,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 7/8" | 3" | 14,800 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 3" | 2" | 9,800 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 3" | 2 1/2" | 12,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 3" | 3" | 14,800 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 3" | 4" | 20,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
High-Load Oil-Embedded Sleeve Bearings
Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds. Startup friction causes them to release a thin layer of oil on the bearing’s surface. Color is silver because of the iron. These bearings are also magnetic due to the high iron content.
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 1/2" Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 3" | 4" | 17,800 lbs. @ 30 rpm | Lubricated | SAE 90 Oil | -15° to 300° | 00000000 | 000000 |
High-Temperature Dry-Running Sleeve Bearings
Graphite provides a layer of dry lubrication that operates in high-temperature environments.
841 bronze bearings are porous and embedded with graphite for continuous lubrication.
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 Method | Temperature Range, °F | Each | |
841 Bronze Bearings | ||||||
|---|---|---|---|---|---|---|
For 2 1/2" Shaft Dia. | ||||||
| 3" | 4" | 16,000 lbs. @ 30 rpm | Embedded | -50° to 700° | 00000000 | 000000 |
Multipurpose Dry-Running Sleeve Bearings
Reinforced with polyester fabric, these plastic bearings have load and speed capabilities comparable to metal bearings. Bearings resist corrosion in outdoor and saltwater environments.
Bearings with seals block out dust and contaminants.
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 | Color | Temperature Range, °F | Each | |
For 2 1/2" Shaft Dia. | ||||||
|---|---|---|---|---|---|---|
| 2 3/4" | 2 1/2" | 7,950 lbs. @ 30 rpm | Blue | -40° to 150° | 0000000 | 000000 |
| For Housing ID | Lg. | Dynamic Radial Load Capacity | Color | Temperature Range, °F | Each | |
For 2 1/2" Shaft Dia. | ||||||
|---|---|---|---|---|---|---|
| 3 1/4" | 3 3/4" | 11,900 lbs. @ 30 rpm | Blue | -40° to 150° | 0000000 | 0000000 |
Multipurpose Sleeve Bearings
These 660 leaded bronze bearings are strong, wear resistant, and excellent at handling shock loads. They’re sometimes called 932 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.
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 1/2" Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 3 1/4" | 1/8" | 6,600 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
Multipurpose Thrust Bearings
These 660 leaded bronze bearings are strong, wear resistant, and excellent at handling shock loads. They’re sometimes called 932 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.
| OD | Thick. | Dynamic Thrust Load Capacity | Lubrication | Temperature Range, °F | Each | |
660 Leaded Bronze | ||||||
|---|---|---|---|---|---|---|
For 2 1/2" Shaft Dia. | ||||||
| 3 1/4" | 1/8" | Not Rated | Required | -350° to 450° | 00000000 | 000000 |
Tapered-Roller Bearings
Found anywhere from machine tool spindles to conveyor rollers, these bearings have a two-piece design that allows for adjustment.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | Thrust Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | For Housing ID | Wd. | Bearing Trade Number | Outer Ring Trade No. | Dynamic | Static | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Each | |
Steel Ring | |||||||||||||
Open | |||||||||||||
| 2 1/2" | 4 1/4" | 3/4" | 29585 | 29520 | 7,600 | 36,300 | 5,950 | 48,400 | 1,700 | Required | -60° to 200° | 00000000 | 0000000 |
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 1/2" | 3 1/4" | 5/64" | 6,200 | 37,500 | 3,300 | Required | 0.2 | 0° to 240° | 0000000 | 000000 |
| For Shaft Dia. | OD | Thick. | Washer Material | Each | |
| 2 1/2" | 3 1/4" | 0.032" | Steel | 00000000 | 00000 |
Washers for Needle-Roller Thrust Bearings
Adapt needle-roller thrust bearings to use on unhardened, unground surfaces.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | OD | Thick. | Washer Material | Each | |
| 2 1/2" | 3 1/4" | 0.032" | Steel | 00000000 | 00000 |
Mounted Sleeve Bearings
A reliable classic—these babbitt bearings are strong and corrosion resistant.
Bearings with split housing have a removable section for easy maintenance.
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.
Overall | Mounting | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Bearing Wd. | Hole Lg. | Hole Wd. | Hole Ctr.-to-Ctr. | Dynamic Radial Load Cap. | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Babbitt Bearings with Split Cast Iron Housing | ||||||||||||||
| 2 1/2" | 2 1/8" | 4 3/16" | 8 7/8" | 5" | 5" | 1" | 5/8" | 7" | 1,730 lbs. @ 30 rpm | 0° to 130° | Fixed Alignment | Required | 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 1/2" | 2 3/4" | 5 23/32" | 10 1/2" | 4" | 7/8" | 3/4" | 8 1/2" | 11,600 | 54,000 | 3,450 | 2,400 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 0000000 |
Mounted Ball Bearings with Four-Bolt Flange
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Set screw bearings secure to shafts as you tighten their screw. They don’t need a collar, but the screw leaves some marring on shafts. Use them in applications where shafts rotate in both directions.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | ||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||
| 2 1/2" | 7 3/8" | 7 3/8" | 3 3/16" | 7/8" | 11/16" | 5 7/8" | 12,800 | 9,000 | 3,000 | -20° to 210° | Self Aligning | Lubricated | 00000000 | 0000000 |
Mounted Roller Bearings with Four-Bolt Flange
The tapered rollers in these bearings support large shafts at high static loads. Seals 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. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Dynamic Thrust Load Cap., lbs. | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Tapered-Roller Bearings | |||||||||||||||
Steel Bearings with Cast Iron Housing—Shaft Mount Type: Set Screw | |||||||||||||||
| 2 1/2" | 6 7/8" | 6 7/8" | 4 3/16" | 1 1/2" | 5/8" | 5 3/8" | 11,600 | 54,000 | 3,450 | 2,400 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 0000000 |
Insert Bearings
Swap out worn inserts instead of replacing the entire mounted unit. Use the manufacturer model number on your existing mounted bearing to choose a compatible insert. Inserts must be used with the manufacturer model number specified.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | For Mounted Bearing Model No. | Each | |
SKF Steel Insert Bearings | |||
|---|---|---|---|
Shaft Mount Type: Set Screw | |||
| 2 1/2" | F4B 208-TF, FY 2.1/2 TF, FYT 2.1/2 TF | 0000000 | 0000000 |
Linear and Rotary Ball Bearings
Engineered for simultaneous linear and rotary motion, these bearings are used with round end-supported shafts. The fixed-alignment design is for use where shaft misalignment is unlikely. To install, slide bearings into a housing (not included) and secure with two retaining rings (sold individually).
Bearings without a maximum stroke length are only limited by the length of shaft they're used on.
For technical drawings and 3-D models, click on a part number.
Bearings | External Retaining Rings | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Overall Lg. | For Housing ID | Retaining Ring Groove End-to-End Lg. | Dynamic Load Capacity, lbs. | Dynamic Rotary Load Capacity | Max. Speed, rpm | Max. Temperature, ° F | For Shaft Material | Each | Each | ||
Fixed Alignment | ||||||||||||
Steel Bearings without End Seals | ||||||||||||
| 2 1/2" | 5" | 3.7500" - 3.7510" | 3.99" | 1,800 | 750 lbs. @ 500 rpm | 2,400 | 200° | Stainless Steel, Steel | 0000000 | 0000000 | 0000000 | 000000 |
Self-Adjusting Spring Bushings
A toothed slot lets these bushings contract for insertion into the bore of your sprocket or pulley and then expand for a snug fit. Made of spring steel, they flex under stress and shock and can handle oscillating or slow rotational motion.
For technical drawings and 3-D models, click on a part number.