Selecting Compatible Lead Screws and Nuts
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Conveyor Belt Tensioners
A tensioner extends or retracts the conveyor pulley to adjust the tension on the conveyor belt. Mount to the sides of the conveyor and attach to the bearings that hold the pulley.
Stainless steel tensioners are corrosion resistant.
Note: Two tensioners and two bearings (sold separately) are required.
For technical drawings and 3-D models, click on a part number.
A tensioner extends or retracts the conveyor pulley to adjust the tension on the conveyor belt.
Mounting Hole | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Max. Adjustment Lg. | Lg. | Ht. | Adjusting Screw Material | Mounting Fasteners Included | Dia. | Ctr.-to-Ctr. Lg. | Ctr.-to-Ctr. Ht. | Each | |
Stainless Steel  | |||||||||
| 3" | 8" | 3 3/4" | Stainless Steel | No | 3/8" | 6 1/2" | 1 3/4" | 0000000 | 0000000 |
| For Tensioner Height | For Shaft Dia. | Dynamic Load Cap., lbs. | Max. Speed, rpm | Lg. | Wd. | Ht. | Temp. Range, °F | Features | Each | |
Stainless Steel with Plastic Housing | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3 3/4" | 5/8" | 2,435 | 4,835 | 3 11/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 0000000 |
| 3 3/4" | 3/4" | 2,435 | 4,835 | 3 11/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 3 3/4" | 7/8" | 2,650 | 4,610 | 3 13/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
| 3 3/4" | 1" | 2,650 | 4,610 | 3 13/16" | 17/64" | 3 1/8" | 0° to 150° | Grease Fitting, Locking Collar with Two Set Screws | 0000000 | 000000 |
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.
Alloy steel components are harder and stronger than carbon steel components.
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.
| Thread Size | Lg. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Fastener Strength Grade/Class | Hardness | Tensile Strength, psi | Specifications Met | Each | |
Alloy Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2"-10 | 8" | 1 | 1:1 | 0.1" | Class 2G | ASTM Grade B7 | Rockwell C35 | 125,000 | ASTM A193 | 000000000 | 000000 |
Breakaway Tapered Shims
Easily snap off any excess to get the length you need. Use these shims to align cabinets, doors, and windows, or for other rough leveling.
For technical drawings and 3-D models, click on a part number.
Thick. | |||||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | Lg. | Wd. | Temp. Range | Pkg. Qty. | Pkg. | |
Smooth Wood | |||||||
| 1/16" | 1/4" | 8" | 1 3/8" | Not Rated | 12 | 0000000 | 00000 |
Slotted Shims
The slot lets you insert, remove, and adjust the shims without disassembling your machinery, while the tab keeps fingers and tools away from machine feet. Use an insertion tool (sold separately) for better leverage and reach. Shims are etched with the thickness.
18-8 stainless steel shims have a balance of strength and corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Slotted Shims | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Slot | Each | Insertion Tools | |||||||||||
| Thick. | Thick. Tolerance | Lg. | Wd. | Wd. | Dp. | For Max. Screw Size | Min. Hardness | Magnetic Properties | 1-9 | 10-Up | Each | ||
Shim Trade Size H | |||||||||||||
| 0.001" | -0.00005" to 0.00005" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 00000 | 00000 | 000000000 | 00000 |
| 0.002" | -0.0001" to 0.0001" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000000 | 0000 |
| 0.003" | -0.00015" to 0.00015" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000000 | 0000 |
| 0.004" | -0.0002" to 0.0002" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000000 | 0000 |
| 0.005" | -0.00025" to 0.00025" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000000 | 0000 |
| 0.008" | -0.0004" to 0.0004" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell C42 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000 | 00 |
| 0.01" | -0.0005" to 0.0005" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000000 | 0000 |
| 0.012" | -0.0006" to 0.0006" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell C42 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000 | 00 |
| 0.015" | -0.00075" to 0.00075" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000000 | 0000 |
| 0.02" | -0.001" to 0.001" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000000 | 0000 |
| 0.025" | -0.00125" to 0.00125" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 | 000000000 | 0000 |
| 0.03" | -0.0015" to 0.0015" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 00000 | 0000 | 000000000 | 0000 |
| 0.04" | -0.003" to 0.003" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B70 | May Be Mildly Magnetic | 000000000 | 00000 | 0000 | 000000 | 00 |
| 0.05" | -0.002" to 0.002" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 00000 | 0000 | 000000000 | 0000 |
| 0.06" | -0.003" to 0.003" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 00000 | 00000 | 000000000 | 0000 |
| 0.075" | -0.002" to 0.002" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 00000 | 00000 | 000000000 | 0000 |
| 0.1" | -0.004" to 0.004" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 00000 | 00000 | 000000000 | 0000 |
| 0.125" | -0.004" to 0.004" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 00000 | 00000 | 000000000 | 0000 |
| 0.25" | -0.01" to 0.01" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 00000 | 00000 | 000000000 | 0000 |
| 0.375" | -0.01" to 0.01" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 00000000 | 00000 | 00000 | 000000000 | 0000 |
| 0.5" | -0.015" to 0.015" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B85 | May Be Mildly Magnetic | 000000000 | 000000 | 000000 | 000000000 | 0000 |
Slotted Shim Sets
Be prepared with slotted shims in a variety of thicknesses. The slot lets you insert, remove, and adjust the shims without disassembling your machinery, while the tab keeps fingers and tools away from machine feet. Use an insertion tool (sold separately) for better leverage and reach. Shims are etched with the thickness. They're made of stainless steel for corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Slotted Shim Sets | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Slot | Insertion Tools | |||||||||||
| No. of Pieces | Includes | Lg. | Wd. | Wd. | Dp. | For Max. Screw Size | Material | Min. Hardness | Each | Each | ||
Shim Trade Size H | ||||||||||||
| 26 | Two 0.001" thick (±0.00005") shims Two 0.002" thick (±0.0001") shims Two 0.003" thick (±0.00015") shims Two 0.004" thick (±0.0002") shims Two 0.005" thick (±0.00025") shims Two 0.010" thick (±0.0005") shims Two 0.015" thick (±0.00075") shims Two 0.020" thick (±0.001") shims Two 0.025" thick (±0.00125") shims Two 0.050" thick (±0.002") shims Two 0.075" thick (±0.002") shims Two 0.100" thick (±0.004") shims Two 0.125" thick (±0.004") shims | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | 18-8 Stainless Steel | Rockwell B70 | 000000000 | 0000000 | 000000000 | 00000 |
| 130 | 10 0.001" thick (±0.00005") shims 10 0.002" thick (±0.0001") shims 10 0.003" thick (±0.00015") shims 10 0.004" thick (±0.0002") shims 10 0.005" thick (±0.00025") shims 10 0.010" thick (±0.0005") shims 10 0.015" thick (±0.00075") shims 10 0.020" thick (±0.001") shims 10 0.025" thick (±0.00125") shims 10 0.050" thick (±0.002") shims 10 0.075" thick (±0.002") shims 10 0.100" thick (±0.004") shims 10 0.125" thick (±0.004") shims | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | 18-8 Stainless Steel | Rockwell B70 | 00000000 | 00000000 | 000000000 | 0000 |
| 260 | 20 0.001" thick (±0.00005") shims 20 0.002" thick (±0.0001") shims 20 0.003" thick (±0.00015") shims 20 0.004" thick (±0.0002") shims 20 0.005" thick (±0.00025") shims 20 0.010" thick (±0.0005") shims 20 0.015" thick (±0.00075") shims 20 0.020" thick (±0.001") shims 20 0.025" thick (±0.00125") shims 20 0.050" thick (±0.002") shims 20 0.075" thick (±0.002") shims 20 0.100" thick (±0.004") shims 20 0.125" thick (±0.004") shims | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | 18-8 Stainless Steel | Rockwell B70 | 000000000 | 00000000 | 000000000 | 0000 |
Bearing Separators
Clamping
Screw
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.
Separators with a clamping screw use screw tension to force separator plates under bearings when there isn’t enough space for them to fit.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
|---|---|---|---|---|---|---|
| Spreader Opening | Size | Pitch | Lg. | Wd. | Each | |
Steel Separators with Clamping Screw | ||||||
| 3/8"-2 13/16" | M10 | 1.5 mm | 8" | 4 3/4" | 00000000 | 0000000 |