Selecting Compatible Lead Screws and Nuts
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Fast-Travel Ball Screws and Nuts
Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. To ensure compatibility, select components that have the same thread size and number of thread starts. 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.
Black-oxide alloy steel ball nuts have mild corrosion resistance.
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.
Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.
Ball Nuts | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Flange | Way Wipers | |||||||||||||||
| 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 | Each | |||
Black-Oxide Alloy Steel | ||||||||||||||||
| C | 1 1/2"-2 | 3 5/8" | 2 5/8" | 4 15/16" | 1 1/64" | 2 | 1" | 4 1/8" | Rockwell C56 | 8,200 | 0.015" | -40° to 300° | 00000000 | 0000000 | 0000000 | 000000 |
T-Slotted Framing Linear Bearings and Track Rollers
For technical drawings and 3-D models, click on a part number.
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.
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" | 25 | 1 5/16" | 3 5/8" | 3 1/8" | 1 1/2" | Black | Nylon Plastic | Anodized Aluminum | One Carriage with Two Rollers | Yes | 000000000 | 000000 |
Black Carriage | ||||||||||||
Side-Mount for Single Rails | ||||||||||||
Sleeve Bearing—Bronze | ||||||||||||
| 1" | 25 | 1 5/16" | 3 5/8" | 3 1/8" | 1 1/2" | Black | Nylon Plastic | Anodized Aluminum | One Carriage with Two Rollers | Yes | 0000000 | 00000 |