System of Measurement System of Measurement |
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For Shaft Type For Shaft Type |
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| Round | Round with Support Rail |
Length Length | Show |
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Length Length | Hide |
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T-Slot Framing Component T-Slot Framing Component |
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 | Linear Bearing |
Mounting Orientation Mounting Orientation |
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Linear Bearing Component Linear Bearing Component |
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 | Bearing in Housing |
Static Load Capacity Static Load Capacity |
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For Shaft Material For Shaft Material |
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Alignment Style Alignment Style |
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Housing Type Housing Type |
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| Base Mount |
Component Component |
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Sleeve Bearing Carriage Type Sleeve Bearing Carriage Type |
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Maximum Temperature Maximum Temperature |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Material Material |
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About Linear Bearings
More
About Plain Bearings
More
Selecting Compatible Lead Screws and Nuts
More
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 1 1/4" Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 1 1/2" | 1 7/8" | 4,650 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 175° | 0000000 | 00000 |
For 1 7/16" Shaft Dia. | |||||||
| 1 3/4" | 1 7/8" | 5,400 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 175° | 00000000 | 00000 |
For 1 3/4" Shaft Dia. | |||||||
| 2" | 1 7/8" | 6,550 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 175° | 00000000 | 00000 |
High-Temperature Dry-Running Sleeve 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.
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 | |
Graphalloy Bearings | ||||||
|---|---|---|---|---|---|---|
For 1 1/4" Shaft Dia. | ||||||
| 1 3/4" | 1 7/8" | 1,750 lbs. @ 30 rpm | Embedded | -450° to 750° | 0000000 | 0000000 |
Mounted Linear Ball Bearings for Support Rail Shafts
Mount these bearings on a support rail shaft for applications requiring maximum rigidity. End seals keep lubricant in and dirt out. Self-aligning bearings compensate for shaft misalignment.
For technical drawings and 3-D models, click on a part number.
Overall | Load Capacity, lbs. | Mounting Holes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Lg. | Wd. | Ht. | Center Ht. | Wd. | Dynamic | Static | Temperature Range, ° F | For Shaft Material | No. of | Dia. | Each | |
Acetal Bearings with 6061 Aluminum Housing | |||||||||||||
| 3/4" | 1 7/8" | 2 3/4" | 1 17/32" | 15/16" | 3/8" | 470 | 590 | -4° to 176° | Stainless Steel, Steel | 4 | 3/16" | 0000000 | 000000 |
High-Load Mounted Linear Ball Bearings for Support Rail Shafts
Designed to handle heavy loads, these bearings have higher load capacities than comparable standard mounted linear ball bearings for support rails. Use them for applications that require maximum rigidity. All are self-aligning to compensate for shaft misalignment and have end seals to keep lubricant in and dirt out.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Holes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Lg. | Wd. | Ht. | Center Ht. | Wd. | Dynamic Load Capacity, lbs. | Max. Temperature, °F | For Shaft Material | No. of | Dia. | Each | |
Acetal Bearings with Steel Balls in 6061 Aluminum Housing | ||||||||||||
| 3/4" | 1 7/8" | 2 3/4" | 1 9/16" | 15/16" | 13/32" | 1,100 | 185° | Steel, Stainless Steel | 4 | 3/16" | 0000000 | 0000000 |
Corrosion-Resistant Mounted Linear Ball Bearings for Support Rail Shafts
Outdoor as well as mild chemical environments are no problem for these bearings. They have stainless steel balls for corrosion resistance. Mount them on a support rail shaft for applications requiring maximum rigidity. They are self-aligning to compensate for shaft misalignment.
For technical drawings and 3-D models, click on a part number.
Overall | Load Capacity, lbs. | Mounting Holes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Lg. | Wd. | Ht. | Center Ht. | Wd. | Dynamic | Static | Temperature Range, °F | For Shaft Material | No. of | Dia. | Each | |
Self Aligning with 1° Misalignment Capability | |||||||||||||
Acetal Bearings with Stainless Steel Balls in 6061 Aluminum Housing | |||||||||||||
| 3/4" | 1 7/8" | 2 3/4" | 1 17/32" | 15/16" | 3/8" | 470 | 590 | -4° to 176° | Stainless Steel, Steel | 4 | 3/16" | 0000000 | 0000000 |
Mounted Linear Sleeve Bearings for Support Rail Shafts
Virtually maintenance free, these bearings have slippery, chemical-resistant liners that don't require added lubrication. Mount them on a support rail shaft for applications requiring maximum rigidity.
Self Aligning—Bearings compensate for shaft misalignment. Bearings with 0.0005" shaft clearance are best for precision applications. Bearings with 0.0015" shaft clearance are less likely to bind on your shaft than bearings with 0.0005" shaft clearance.
Frelon liners are stronger and more wear resistant than PTFE liners.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Holes | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Shaft Clearance | Lg. | Wd. | Ht. | Center Ht. | Wd. | Dynamic Load Capacity | Static Load Capacity, lbs. | Temperature Range, ° F | For Shaft Material | No. of | Dia. | Each | |
Self Aligning | ||||||||||||||
Frelon-Lined 6061 Aluminum Bearings with 6063 Aluminum Housing | ||||||||||||||
| 3/4" | 0.0005" | 1 7/8" | 2 3/4" | 1 9/16" | 15/16" | 7/16" | 250 lbs. @ 100 fpm | 3,800 | -400° to 400° | Steel | 4 | 3/16" | 00000000 | 0000000 |
| 3/4" | 0.0015" | 1 7/8" | 2 3/4" | 1 9/16" | 15/16" | 7/16" | 250 lbs. @ 100 fpm | 3,800 | -400° to 400° | Steel | 4 | 3/16" | 00000000 | 000000 |
Self-Stopping Ball Screws and Nuts
Keep your ball screw spinning without the ball nut damaging your system—a clutch-like collar inside the ball nut prevents it from travelling past the stop pins. Install the included stop pins anywhere along the length of the ball screw by drilling a hole in the valley of the threads (also known as the root) and pressing in the stop pin. When the collar meets the stop pin, the ball nut disengages from the threads and begins to idle. To start the ball nut travelling again, spin the ball screw in the opposite direction. All components are black-oxide steel and have mild corrosion resistance. To ensure compatibility, select components that have the same thread size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.
Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Lg. | Dia. | No. of Thread Starts | Travel Distance per Turn | External Thread Size | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash | Temperature Range, °F | Each | |
Black-Oxide Alloy Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 5/8"-6 | 1 7/8" | 1" | 2 | 0.188" | 0.938"-16 | Rockwell C56 | 300 | 0.006" | -65° to 300° | 0000000 | 000000 |
Flange | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Travel Distance per Turn | Bolt Circle Dia. | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash | Temperature Range, °F | Each | |
Black-Oxide Alloy Steel | |||||||||||||
| 5/8"-6 | 1 7/8" | 1" | 2" | 13/32" | 2 | 0.188" | 1 5/8" | Rockwell C56 | 300 | 0.006" | -65° to 300° | 0000000 | 0000000 |
Self-Reversing Lead Screws and Nuts
A crisscross thread pattern allows you to drive the nut back and forth without changing the lead screw's direction of rotation. When the nut reaches one end of the lead screw, it changes direction and travels back to the other end. Also known as diamond lead screws, they're sometimes used to guide cable and wire as it's spooled on a reel.
Travel distance per turn, also known as screw lead, is the distance the nut moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
Lead Screw | Square Nut | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Screw Dia. | Lg. | Travel Lg. | Hardness | Overall Ht. | Center Ht. | Hardness | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Temperature Range, °F | Each | |
1144 Carbon Steel Lead Screw with Aluminum Square Nut | ||||||||||||||
| 3/4" | 16 7/8" | 5 13/16" | Rockwell C27 | 1 7/8" | 11/16" | Brinell 60 | 1 | 0.75" | ±0.007" per in. | 130,000 | 100 | -50° to 350° | 000000000 | 000000000 |
| 3/4" | 19 7/8" | 8 13/16" | Rockwell C27 | 1 7/8" | 11/16" | Brinell 60 | 1 | 0.75" | ±0.007" per in. | 130,000 | 100 | -50° to 350° | 000000000 | 00000000 |
Wheel Bearings
Replace worn or damaged wheel bearings to keep your equipment rolling. Use flanged bearings and ball bearings in pairs. Change the axle diameter with wheel reducer bushings (sold separately).
Note: Not for use in towing applications.
For impact-resistant tapered roller bearings, as well as other bearing materials and sizes, please see Ball and Roller Bearings and Sleeve Bearings. Roller bearings provide smooth rolling.
Retaining washers hold roller bearings in place.
Wheel Reducer Bushings
Reduce the inside diameter of a bearing to fit a particular axle size. Also known as spanner bushings, they also reduce wear on the axle when used in plain bores and with straight roller bearings. All have a hole for lubrication.
Washers slide over the bushing and add 3/32" to the hub length of your wheel. Multiple washers can be used to match the length of the bushing.
| For Axle Dia. | OD | Lg. | Each | |
Steel | ||||
|---|---|---|---|---|
| 1/2" | 3/4" | 1 7/8" | 00000000 | 00000 |
T-Slotted Framing Linear Bearings and Track Rollers
Mount components to these load-rated bearings and track rollers to add linear motion along T-slotted rails.
For technical drawings and 3-D models, click on a part number.
Bearings are lined with slippery, durable plastic and have no moving parts. They work well in automated systems and other applications requiring precise, repetitive motion. They withstand exposure to dirt, water, impact, and vibration.
Bearings with a flanged profile have through holes for mounting loads to the bearing.
Bearing pads replace worn pads. Hand brakes hold sleeve bearing carriages in place on the rail. Carriages for double rails and 1", 1 1/2", and 40mm single rails have a mounting hole for the brakes.
Bearings | Bearing Pads | Hand Brakes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Rail Ht. | Static Load Capacity, lbs. | Lg. | (A) | (B) | (C) | Carriage Material | Mounting Fasteners Included | Each | Each | Each | |||
Horizontal Mount—Standard Strength | |||||||||||||
| 1" | 90 | 1 7/8" | 2 15/16" | 1 1/4" | __ | Anodized Aluminum | No | 000000000 | 000000 | 000000000 | 00000 | 00000000 | 000000 |
Side Mount—Standard Strength | |||||||||||||
| 1" | 90 | 1 7/8" | 1 5/8" | 2" | 1 5/16" | Anodized Aluminum | No | 000000000 | 00000 | 000000000 | 0000 | 00000000 | 00000 |
Bearings are lined with slippery, durable plastic and have no moving parts. They work well in automated systems and other applications requiring precise, repetitive motion. They withstand exposure to dirt, water, impact, and vibration.
Bearings with a standard profile have threaded holes for mounting loads to the bearing.
Bearing pads replace worn pads. Hand brakes hold sleeve bearing carriages in place on the rail. Carriages for double rails and 1", 1 1/2", and 40mm single rails have a mounting hole for the brakes.
Bearings are lined with slippery, durable plastic and have no moving parts. They work well in automated systems and other applications requiring precise, repetitive motion. They withstand exposure to dirt, water, impact, and vibration.
Bearings with a flanged profile have through holes for mounting loads to the bearing.
Bearing pads replace worn pads. Hand brakes hold sleeve bearing carriages in place on the rail. Carriages for double rails and 1", 1 1/2", and 40mm single rails have a mounting hole for the brakes.
Bearings are lined with slippery, durable plastic and have no moving parts. They work well in automated systems and other applications requiring precise, repetitive motion. They withstand exposure to dirt, water, impact, and vibration.
Bearings with a standard profile have threaded holes for mounting loads to the bearing.
Bearing pads replace worn pads. Hand brakes hold sleeve bearing carriages in place on the rail. Carriages for double rails and 1", 1 1/2", and 40mm single rails have a mounting hole for the brakes.