Selecting Compatible Lead Screws and Nuts
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About Plain Bearings
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Oil-Embedded Sleeve Bearings
Startup friction causes these 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.
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 | ||||||
---|---|---|---|---|---|---|
For 1 1/4" Shaft Dia. | ||||||
1 3/4" | 1 7/8" | 1,750 lbs. @ 30 rpm | Embedded | -450° to 750° | 0000000 | 0000000 |
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" | 15/16"-16 | Rockwell C56 | 300 | 0.006" | -65° to 300° | 0000000 | 0000000 |
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 |
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.
For technical drawings and 3-D models, click on a part number.
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 technical drawings and 3-D models, click on a part number.
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 move more accurately than other T-slotted framing linear motion components, such as track rollers, and are often used in automated systems and other applications requiring repetitive motion. They’re lined with slippery, durable plastic and have no moving parts. These bearings withstand exposure to dirt, water, impact, and vibration. To adjust how they fit on your rail, slide one of the included shims between the bearing pad and bearing housing.
Flanged sleeve bearings mount in two different orientations: one where the bearing slides along the rail and another where the bearing acts as a mount allowing the rail to slide. Fasten bolts through the flange holes to secure them to rails, loads, and other surfaces.
Heavy duty flanged bearings have threaded inserts in their bearing pads for a tighter grip on the bearing housing. They work well in pick-and-place, parts-transfer, and other high-speed applications with frequent starts, stops, and changes in speed.
Bearing pads replace worn pads.
Linear Bearings | Replacement Bearing Pads | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Rail Ht. | Dynamic Load Capacity | Static Load Capacity, lbs. | Lg. | (A) | (B) | (C) | Includes | Each | Each | ||
Standard Strength—1 Flange | |||||||||||
Silver Anodized Aluminum | |||||||||||
1" | 23 lbs. @ 100 fpm | 150 | 1 7/8" | 1 5/8" | 2" | 1 5/16" | One Carriage Panel, Three Bearing Pads, 10 Shims | 000000000 | 000000 | 000000000 | 00000 |
Black Anodized Aluminum | |||||||||||
1" | 23 lbs. @ 100 fpm | 150 | 1 7/8" | 1 5/8" | 2" | 1 5/16" | One Carriage Panel, Three Bearing Pads, 10 Shims | 00000000 | 00000 | 00000000 | 0000 |
Standard Strength—2 Flange | |||||||||||
Silver Anodized Aluminum | |||||||||||
1" | 30 lbs. @ 100 fpm | 200 | 1 7/8" | 2 15/16" | 1 1/4" | __ | One Carriage Panel, Three Bearing Pads, 10 Shims | 000000000 | 00000 | 000000000 | 0000 |
1 1/2" | 18 lbs. @ 100 fpm | 450 | 2 13/16" | 4" | 1 7/8" | __ | One Carriage Panel, Three Bearing Pads, 10 Shims | 000000000 | 00000 | 000000000 | 0000 |
1 1/2" | 53 lbs. @ 100 fpm | 650 | 6" | 4" | 1 7/8" | __ | One Carriage Panel, Six Bearing Pads, 20 Shims | 000000000 | 000000 | 000000000 | 0000 |
Black Anodized Aluminum | |||||||||||
1" | 30 lbs. @ 100 fpm | 200 | 1 7/8" | 2 15/16" | 1 1/4" | __ | One Carriage Panel, Three Bearing Pads, 10 Shims | 00000000 | 00000 | 00000000 | 0000 |
1 1/2" | 18 lbs. @ 100 fpm | 450 | 2 13/16" | 4" | 1 7/8" | __ | One Carriage Panel, Three Bearing Pads, 10 Shims | 00000000 | 000000 | 00000000 | 0000 |
1 1/2" | 53 lbs. @ 100 fpm | 650 | 6" | 4" | 1 7/8" | __ | One Carriage Panel, Six Bearing Pads, 20 Shims | 00000000 | 000000 | 00000000 | 0000 |
Heavy Duty Strength—2 Flange | |||||||||||
Silver Anodized Aluminum | |||||||||||
1 1/2" | 18 lbs. @ 100 fpm | 200 | 2 13/16" | 4" | 1 7/8" | __ | One Carriage Panel, Three Bearing Pads, 10 Shims | 000000000 | 000000 | 000000000 | 0000 |
1 1/2" | 33 lbs. @ 100 fpm | 450 | 6" | 4" | 1 7/8" | __ | One Carriage Panel, Six Bearing Pads, 20 Shims | 000000000 | 000000 | 000000000 | 0000 |
Black Anodized Aluminum | |||||||||||
1 1/2" | 18 lbs. @ 100 fpm | 200 | 2 13/16" | 4" | 1 7/8" | __ | One Carriage Panel, Three Bearing Pads, 10 Shims | 00000000 | 000000 | 00000000 | 0000 |
1 1/2" | 33 lbs. @ 100 fpm | 450 | 6" | 4" | 1 7/8" | __ | One Carriage Panel, Six Bearing Pads, 20 Shims | 00000000 | 000000 | 00000000 | 0000 |
Bearings move more accurately than other T-slotted framing linear motion components, such as track rollers, and are often used in automated systems and other applications requiring repetitive motion. They’re lined with slippery, durable plastic and have no moving parts. These bearings withstand exposure to dirt, water, impact, and vibration. To adjust how they fit on your rail, slide one of the included shims between the bearing pad and bearing housing.
Standard sleeve bearings let you mount loads in multiple ways: using threaded holes on the panel and on the end of the mounting rail. The hole on the mounting rail end is often used to add bumpers.
Standard sleeve bearings for 1 rail also let you mount loads using the T-slot on their mounting rail. Their panels can be attached once the bearing is positioned on your rail, which saves you from having to disassemble your system. Most other bearings for T-slotted rails install by sliding onto the end of a rail.
Bearing pads replace worn pads.
Replacement carriage panels and mounting rails let you create custom standard sleeve bearings with different shapes and profiles.
Linear Bearings | Replacement Carriage Panel Bearing Pads | Replacement Mounting Rail Bearing Pads | Replacement Carriage Panels | Replacement Mounting Rails | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Rail Ht. | Dynamic Load Capacity | Static Load Capacity, lbs. | Lg. | (A) | (B) | Includes | Each | Each | Each | Each | Each | |||||
Heavy Duty Strength | ||||||||||||||||
Silver Anodized Aluminum | ||||||||||||||||
1" | 13 lbs. @ 100 fpm | 100 | 1 7/8" | 1 5/8" | 2 1/16" | Two Carriage Panels, One Mounting Rail, Two Carriage Panel Bearing Pads, One Mounting Rail Bearing Pad, 30 Shims | 000000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 | 0000000 | 000000 | 00000000 | 000000 |
Black Anodized Aluminum | ||||||||||||||||
1" | 13 lbs. @ 100 fpm | 100 | 1 7/8" | 1 5/8" | 2 1/16" | Two Carriage Panels, One Mounting Rail, Two Carriage Panel Bearing Pads, One Mounting Rail Bearing Pad, 30 Shims | 00000000 | 00000 | 0000000 | 0000 | 00000000 | 0000 | 00000000 | 00000 | 00000000 | 00000 |
Bearings move more accurately than other T-slotted framing linear motion components, such as track rollers, and are often used in automated systems and other applications requiring repetitive motion. They’re lined with slippery, durable plastic and have no moving parts. These bearings withstand exposure to dirt, water, impact, and vibration. To adjust how they fit on your rail, slide one of the included shims between the bearing pad and bearing housing.
Standard sleeve bearings let you mount loads in multiple ways: using threaded holes on the panel and on the end of the mounting rail. The hole on the mounting rail end is often used to add bumpers.
Bearing pads replace worn pads.
Replacement carriage panels and mounting rails let you create custom standard sleeve bearings with different shapes and profiles.
Linear Bearings | Replacement Carriage Panel Bearing Pads | Replacement Mounting Rail Bearing Pads | Replacement Carriage Panels | Replacement Mounting Rails | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Rail Ht. | Dynamic Load Capacity | Static Load Capacity, lbs. | Lg. | (A) | (B) | Includes | Each | Each | Each | Each | Each | |||||
Heavy Duty Strength | ||||||||||||||||
Silver Anodized Aluminum | ||||||||||||||||
1" | 20 lbs. @ 100 fpm | 250 | 1 7/8" | 1 5/8" | 3 1/8" | Two Carriage Panels, One Mounting Rail, Four Carriage Panel Bearing Pads, Two Mounting Rail Bearing Pads, 40 Shims | 00000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 | 00000000 | 000000 | 00000000 | 000000 |
Bearings move more accurately than other T-slotted framing linear motion components, such as track rollers, and are often used in automated systems and other applications requiring repetitive motion. They’re lined with slippery, durable plastic and have no moving parts. These bearings withstand exposure to dirt, water, impact, and vibration. To adjust how they fit on your rail, slide one of the included shims between the bearing pad and bearing housing.
Flanged sleeve bearings mount in two different orientations: one where the bearing slides along the rail and another where the bearing acts as a mount allowing the rail to slide. Fasten bolts through the flange holes to secure them to rails, loads, and other surfaces.
Heavy duty flanged bearings have threaded inserts in their bearing pads for a tighter grip on the bearing housing. They work well in pick-and-place, parts-transfer, and other high-speed applications with frequent starts, stops, and changes in speed.
Bearing pads replace worn pads.
Linear Bearings | Replacement Bearing Pads | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Rail Ht. | Dynamic Load Capacity | Static Load Capacity, lbs. | Lg. | (A) | (B) | Includes | Each | Each | ||
Standard Strength—2 Flange | ||||||||||
Silver Anodized Aluminum | ||||||||||
2" | 55 lbs. @ 100 fpm | 500 | 1 7/8" | 3 15/16" | 1 1/4" | One Carriage Panel, Four Bearing Pads, 20 Shims | 000000000 | 000000 | 000000000 | 00000 |
3" | 55 lbs. @ 100 fpm | 500 | 2 13/16" | 5 1/2" | 1 7/8" | One Carriage Panel, Four Bearing Pads, 20 Shims | 000000000 | 00000 | 000000000 | 0000 |
3" | 105 lbs. @ 100 fpm | 600 | 6" | 5 1/2" | 1 7/8" | One Carriage Panel, Eight Bearing Pads, 30 Shims | 000000000 | 000000 | 000000000 | 0000 |
Black Anodized Aluminum | ||||||||||
2" | 55 lbs. @ 100 fpm | 500 | 1 7/8" | 3 15/16" | 1 1/4" | One Carriage Panel, Four Bearing Pads, 20 Shims | 00000000 | 000000 | 00000000 | 0000 |
3" | 55 lbs. @ 100 fpm | 500 | 2 13/16" | 5 1/2" | 1 7/8" | One Carriage Panel, Four Bearing Pads, 20 Shims | 00000000 | 000000 | 00000000 | 0000 |
3" | 105 lbs. @ 100 fpm | 600 | 6" | 5 1/2" | 1 7/8" | One Carriage Panel, Eight Bearing Pads, 30 Shims | 0000000 | 000000 | 00000000 | 0000 |
Heavy Duty Strength—2 Flange | ||||||||||
Silver Anodized Aluminum | ||||||||||
3" | 30 lbs. @ 100 fpm | 500 | 2 13/16" | 5 1/2" | 1 7/8" | One Carriage Panel, Four Bearing Pads, 20 Shims | 000000000 | 000000 | 000000000 | 0000 |
3" | 65 lbs. @ 100 fpm | 600 | 6" | 5 1/2" | 1 7/8" | One Carriage Panel, Eight Bearing Pads, 30 Shims | 000000000 | 000000 | 000000000 | 0000 |
Black Anodized Aluminum | ||||||||||
3" | 30 lbs. @ 100 fpm | 500 | 2 13/16" | 5 1/2" | 1 7/8" | One Carriage Panel, Four Bearing Pads, 20 Shims | 00000000 | 000000 | 00000000 | 0000 |
3" | 65 lbs. @ 100 fpm | 600 | 6" | 5 1/2" | 1 7/8" | One Carriage Panel, Eight Bearing Pads, 30 Shims | 00000000 | 000000 | 00000000 | 0000 |
Bearings move more accurately than other T-slotted framing linear motion components, such as track rollers, and are often used in automated systems and other applications requiring repetitive motion. They’re lined with slippery, durable plastic and have no moving parts. These bearings withstand exposure to dirt, water, impact, and vibration. To adjust how they fit on your rail, slide one of the included shims between the bearing pad and bearing housing.
Standard sleeve bearings let you mount loads in multiple ways: using threaded holes on the panel and on the end of the mounting rail. The hole on the mounting rail end is often used to add bumpers.
Standard sleeve bearings for 1 rail also let you mount loads using the T-slot on their mounting rail. Their panels can be attached once the bearing is positioned on your rail, which saves you from having to disassemble your system. Most other bearings for T-slotted rails install by sliding onto the end of a rail.
Bearing pads replace worn pads.
Replacement carriage panels and mounting rails let you create custom standard sleeve bearings with different shapes and profiles.
Linear Bearings | Replacement Carriage Panel Bearing Pads | Replacement Mounting Rail Bearing Pads | Replacement Carriage Panels | Replacement Mounting Rails | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Rail Ht. | Dynamic Load Capacity | Static Load Capacity, lbs. | Lg. | (A) | (B) | Includes | Each | Each | Each | Each | Each | |||||
Heavy Duty Strength | ||||||||||||||||
Silver Anodized Aluminum | ||||||||||||||||
2" | 20 lbs. @ 100 fpm | 250 | 1 7/8" | 2 5/8" | 2 1/16" | Two Carriage Panels, One Mounting Rail, Two Carriage Panel Bearing Pads, Two Mounting Rail Bearing Pads, 30 Shims | 000000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 | 0000000 | 000000 | 00000000 | 000000 |
Black Anodized Aluminum | ||||||||||||||||
2" | 20 lbs. @ 100 fpm | 250 | 1 7/8" | 2 5/8" | 2 1/16" | Two Carriage Panels, One Mounting Rail, Two Carriage Panel Bearing Pads, Two Mounting Rail Bearing Pads, 30 Shims | 00000000 | 00000 | 0000000 | 0000 | 00000000 | 0000 | 00000000 | 00000 | 00000000 | 00000 |
Bearings move more accurately than other T-slotted framing linear motion components, such as track rollers, and are often used in automated systems and other applications requiring repetitive motion. They’re lined with slippery, durable plastic and have no moving parts. These bearings withstand exposure to dirt, water, impact, and vibration. To adjust how they fit on your rail, slide one of the included shims between the bearing pad and bearing housing.
Standard sleeve bearings let you mount loads in multiple ways: using threaded holes on the panel and on the end of the mounting rail. The hole on the mounting rail end is often used to add bumpers.
Bearing pads replace worn pads.
Replacement carriage panels and mounting rails let you create custom standard sleeve bearings with different shapes and profiles.
Linear Bearings | Replacement Carriage Panel Bearing Pads | Replacement Mounting Rail Bearing Pads | Replacement Carriage Panels | Replacement Mounting Rails | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Rail Ht. | Dynamic Load Capacity | Static Load Capacity, lbs. | Lg. | (A) | (B) | Includes | Each | Each | Each | Each | Each | |||||
Heavy Duty Strength | ||||||||||||||||
Silver Anodized Aluminum | ||||||||||||||||
2" | 20 lbs. @ 100 fpm | 350 | 1 7/8" | 2 5/8" | 3 1/8" | Two Carriage Panels, One Mounting Rail, Four Carriage Panel Bearing Pads, Four Mounting Rail Bearing Pads, 40 Shims | 00000000 | 000000 | 000000000 | 00000 | 000000000 | 00000 | 00000000 | 000000 | 00000000 | 000000 |
Hand brakes hold sleeve bearing carriages in place on the rail. Single arm brakes have an adjustable grip. If space is tight, you can ratchet the grip out of the way without releasing the brake.
For Rail Ht. | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Single | Double | Triple | Lg. | Wd. | Dia. | Projection | Material | Color | Each | |
Single Arm Grip Style | ||||||||||
1" | 2" | __ | 2 1/16" | 9/16" | __ | 1 7/16" | Plastic | Black | 00000000 | 000000 |
1 1/2" | 3" | 4 1/2" | 3 1/2" | 7/8" | __ | 2 1/4" | Zinc | Silver | 00000000 | 00000 |
1 1/2" | 3" | 4 1/2" | 3 1/2" | 7/8" | __ | 2 1/4" | Zinc | Yellow | 00000000 | 00000 |
Two Arm Grip Style | ||||||||||
1 1/2" | 3" | 4 1/2" | 2 1/2" | 3/4" | __ | 1 1/8" | Plastic | Black | 00000000 | 0000 |
Eight Arm Grip Style | ||||||||||
1 1/2" | 3" | 4 1/2" | __ | __ | 1 3/8" | 7/8" | Plastic | Black | 00000000 | 0000 |
Track rollers are for applications that don't require high precision, such as sliding door frames, glides, and track systems. Multiple track rollers can be used on a rail. Because they’re side mount, they allow you to attach and roll components along the side of the rail.
Sleeve bearings don’t need to be lubricated, but they aren’t as long-lasting and don’t roll as smoothly as ball bearings. Ball bearings last longer and roll more smoothly than sleeve bearings but need to be lubricated.
Roller | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Rail Ht. | Capacity, lbs. | (A) | (B) | (C) | Dia. | Color | Material | Carriage Material | Includes | Mounting Fasteners Included | Each | |
Silver Carriage | ||||||||||||
Side-Mount for Single Rails | ||||||||||||
Sleeve Bearing—Bronze | ||||||||||||
1 1/2" | 25 | 1 7/8" | 5 1/8" | 4 5/8" | 2" | Black | Nylon Plastic | Anodized Aluminum | One Carriage with Two Rollers | Yes | 000000000 | 000000 |
Ball Bearing—Steel | ||||||||||||
1 1/2" | 25 | 1 7/8" | 5 1/8" | 4 5/8" | 2" | Black | Nylon Plastic | Anodized Aluminum | One Carriage with Two Rollers | Yes | 0000000 | 000000 |
Side-Mount for Double Rails | ||||||||||||
Sleeve Bearing—Bronze | ||||||||||||
3" | 25 | 1 7/8" | 6 5/8" | 6 1/8" | 2" | Black | Nylon Plastic | Anodized Aluminum | One Carriage with Two Rollers | Yes | 000000000 | 00000 |
Ball Bearing—Steel | ||||||||||||
3" | 25 | 1 7/8" | 6 5/8" | 6 1/8" | 2" | Black | Nylon Plastic | Anodized Aluminum | One Carriage with Two Rollers | Yes | 0000000 | 000000 |
Black Carriage | ||||||||||||
Side-Mount for Single Rails | ||||||||||||
Sleeve Bearing—Bronze | ||||||||||||
1 1/2" | 25 | 1 7/8" | 5 1/8" | 4 5/8" | 2" | Black | Nylon Plastic | Anodized Aluminum | One Carriage with Two Rollers | Yes | 0000000 | 000000 |
Side-Mount for Double Rails | ||||||||||||
Sleeve Bearing—Bronze | ||||||||||||
3" | 25 | 1 7/8" | 6 5/8" | 6 1/8" | 2" | Black | Nylon Plastic | Anodized Aluminum | One Carriage with Two Rollers | Yes | 0000000 | 000000 |