Selecting Compatible Lead Screws and Nuts
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Square Maintenance-Free Turntables
The sealed ball bearings will never need additional lubrication. These turntables add rotational positioning to machinery and equipment.
For technical drawings and 3-D models, click on a part number.
Bearing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Capacity, lbs. | Lg. | Wd. | Overall Ht. | Material | Type | Material | Mounting Fasteners Included | Each | |
Lubricated | |||||||||
| 2,500 | 3.5" | 3.5" | 1.92" | Blue-Painted Iron | Ball | Steel | No | 0000000 | 0000000 |
Maintenance-Free Lockable Turntables
The sealed ball bearings will never need additional lubrication. These turntables lock into one of four positions. To unlock, pull the ring on the spring-loaded locking pin and turn it 90°. Turntables add rotational positioning to machinery and equipment.
For technical drawings and 3-D models, click on a part number.
Bearing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Capacity, lbs. | Lg. | Wd. | Overall Ht. | Material | Type | Material | Mounting Fasteners Included | Each | |
Lubricated | |||||||||
| 2,500 | 3.5" | 3.5" | 1.92" | Blue-Painted Iron | Ball | Steel | No | 0000000 | 0000000 |
End Supports for Lead Screws and Ball Screws
A set of ball bearings reduces friction and secures the end of a ball or lead screw. Note: The end of your ball or lead screw must be machined before installing it into an end support.
For technical drawings and 3-D models, click on a part number.
End supports for radial loads handle loads perpendicular to the lead screw.
Face Mounting Holes | Top Mounting Holes | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | Ht. | Center Ht. | Wd. | Dp. | No. of Mounting Holes | Dia. | Ctr.-to-Ctr. Wd. | Ctr.-to-Ctr. Ht. | Dia. | Ctr.-to-Ctr. Wd. | Temperature Range, °F | Each | |
Alloy Steel | |||||||||||||
| 19/32" | 2 1/8" | 1 1/8" | 3 1/2" | 1 1/64" | 6 | 9/32" | 2 1/2" | 1 3/8" | 13/32" | 2 1/2" | -40° to 210° | 000000000 | 0000000 |
End supports for combined radial and thrust loads handle radial loads (perpendicular to the lead screw) and thrust loads (parallel to the lead screw).
Combined Load Cap., lbs. | Face Mounting Holes | Top Mounting Holes | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | Ht. | Center Ht. | Wd. | Dp. | Static | Dynamic | No. of Mounting Holes | Dia. | Ctr.-to-Ctr. Wd. | Ctr.-to-Ctr. Ht. | Dia. | Ctr.-to-Ctr. Wd. | Temperature Range, °F | Each | |
Alloy Steel | |||||||||||||||
| 19/32" | 2 1/8" | 1 1/8" | 3 1/2" | 1 27/32" | 2,300 | 1,050 | 6 | 9/32" | 2 1/2" | 1 3/8" | 13/32" | 2 1/2" | -40° to 210° | 00000000 | 0000000 |
Acme Lead Screws and Nuts
Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.
Carbon steel components are easier to machine than alloy steel components. Zinc-plated carbon steel components have mild corrosion resistance. 360 brass components have excellent machinability and good corrosion resistance. 18-8 stainless steel components have good corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
Coupling nuts connect two lead screws.
| Thread Size | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Each | |
Carbon Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2 1/2"-4 | 5" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B75 | 000000000 | 0000000 |
Hex nuts fasten and position lead screw components.
| Thread Size | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Specifications Met | Each | |
Carbon Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 2 1/4"-4 | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B75 | __ | 000000000 | 0000000 |
| 2 1/2"-4 | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B75 | __ | 000000000 | 000000 |
Zinc-Plated Carbon Steel | ||||||||||
| 2 1/4"-4 | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B75 | __ | 000000000 | 000000 |
| 2 1/2"-4 | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B75 | __ | 000000000 | 000000 |
360 Brass | ||||||||||
| 2 1/2"-4 | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B75 | ASTM B16 | 000000000 | 000000 |
18-8 Stainless Steel | ||||||||||
| 2 1/4"-4 | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B97 | __ | 000000000 | 000000 |
| 2 1/2"-4 | 2 1/2" | 3 1/2" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B97 | __ | 000000000 | 000000 |
Bearing Separators
Separate bearings, collars, hubs, and other shaft-mounted items so you can remove them. After separation, use a puller (not included) to remove them from the shaft.
Separators can be used with Face-Grip Pullers. Select a face-grip puller with a leg thread size that matches the thread size of your separator.
Thread | |||||
|---|---|---|---|---|---|
| Spreader Opening | Size | Lg. | Wd. | Each | |
Steel Separators | |||||
| 1/8"-1 7/8" | 3/8"-16 | 2 3/4" | 3 1/2" | 000000 | 000000 |