About Composites
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Selecting Compatible Lead Screws and Nuts
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About Shafts
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Low-Carbon Steel Rods and Discs
- Yield Strength: See table
- Hardness: See table
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: See table
- Fabrication: See table
- Specifications Met: See table
Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into low-strength fasteners, pins, and axles. You can surface harden this material for added wear resistance. All have been manufactured to meet ASTM standards for quality and performance.
Cold-worked rods and discs have a finished look and quality. The cold-working process gives the steel consistent strength, hardness, and dimensions throughout.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Tight-Tolerance Ultra-Machinable 12L14 Carbon Steel Rods
- Yield Strength: 65,000 psi
- Hardness: Rockwell B80 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C65
- Fabrication: Cold Worked
- Specifications Met: ASTM A108
Ready for turning in a lathe, these rods are precision ground and held to a strict straightness tolerance. The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts, such as shaft couplings, studs, and pins. These rods meet ASTM A108 quality and performance standards. For added wear resistance, they can be surface hardened with heat treating.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Tight-Tolerance Multipurpose Air-Hardening A2 Tool Steel Rods
Precision ground and held to a strict straightness tolerance, these rods are ready for turning in your lathe. Also known as drill rod, this A2 tool steel is more wear resistant than O1 and keeps a sharper cutting edge. It’s air-hardening, so it doesn’t require baths or quenching after heat treatment. This tool steel is often used for punches, blades, and hammers. These rods have been manufactured to ASTM A681 standards for performance and quality.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
- Yield Strength: 55,000 psi
- Hardness: See table
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C62
- Fabrication: Hot Rolled
- Specifications Met: ASTM A681
Tight-Tolerance Multipurpose Oil-Hardening O1 Tool Steel Rods
- Yield Strength: 50,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Maximum Hardness After Heat Treatment: Rockwell C65
- Fabrication: Hot Rolled
- Specifications Met: ASTM A681
Ready for turning in a lathe, these rods are precision ground to a tight diameter tolerance. They’re also known as drill rod. Often used for dies, punches, and gauges, O1 tool steel is an oil-hardening material that resists wear and abrasion. It can also be surface hardened with heat treating for added wear resistance. These rods have been manufactured to meet ASTM A681 standards for performance and quality.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Multipurpose 304 Stainless Steel
From cookware to chemical-processing equipment, 304 stainless steel is a good all-around choice for a wide range of applications. It maintains its corrosion resistance in temperatures up to 1500° F.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Easy-to-Machine 303 Stainless Steel
Widely used for fabricating fittings and fasteners, 303 stainless steel machines quickly without sticking to cutting tools. It maintains its corrosion resistance in temperatures up to 1500° F.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
- Yield Strength: 25,000 psi
- Hardness:
Inch Sizes: Rockwell B77 (Medium)
Metric Sizes: Rockwell B85 (Medium) - Heat Treatment: Annealed (Softened)
- Heat Treatable: No
- Specifications Met:
Inch Sizes: ASTM A582
Metric Sizes: EN 10088-3
Ball Screws and Nuts
Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, they have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread direction and 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.
Root diameter indicates the diameter the ball screw will be after machining away the threads.
Ball Screw | Flange Ball Nut | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size  | Lg., mm | Root Dia., mm | Tensile Strength, psi | Lg., mm | Dia., mm | Length Tolerance | No. of Thread Starts | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Hardness | Dynamic Thrust Load Capacity, lbs. | Max. Backlash, mm | Temp. Range, °F | Each | |
Carbon Steel Ball Screw with Alloy Steel Flange Ball Nut | |||||||||||||||
| M6 | 150 | 5.3 | 21,000 | 21 | 13 | Plus | 1 | 1 | ±0.210 mm per 300 mm | Rockwell C58 | 150 | 0.05 | 5° to 175° | 0000000 | 0000000 |
| M6 | 250 | 5.3 | 21,000 | 21 | 13 | Plus | 1 | 1 | ±0.210 mm per 300 mm | Rockwell C58 | 150 | 0.05 | 5° to 175° | 000000 | 000000 |
Linear Motion Shafts
Smooth, hard, and wear resistant, these shafts work with linear bearings to reduce friction in manual and automated systems, such as those found in packing, machine tool, and material handling operations. All are turned, ground, and polished to tight diameter and straightness tolerances.
Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. Alloy steel shafts are stronger and more wear resistant than carbon steel.
Surface smoothness—The lower the microinch value, the smoother the finish and the less friction and wear it will cause on the bearing.
| Lg., mm | Lg. Tolerance, mm | Straightness Tolerance | Surface Smoothness, microinch | Edge Type | Hardness Rating | Hardness | Heat Treatment | Each | |
13 mm Dia. (Tolerance: -0.017 mm to -0.006 mm) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 200 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 00000000 | 000000 |
| 400 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 00000000 | 00000 |
| 500 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 0000000 | 00000 |
| 1,000 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 0000000 | 00000 |
| 1,200 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 0000000 | 000000 |
Ball Splines and Bearings
Create a compact linear and rotary motion system for applications requiring complex, fast movements, such as robotics. The grooves on the ball splines transmit rotary power as ball bearings move smoothly and precisely along their length, even at high speeds.
Ball splines are alloy steel for high strength and wear resistance. They're hardened on the outside for additional wear resistance while the center is soft enough to absorb stress from shifting loads.
Bearings have a retaining ring groove, so they can be positioned in your system with a retaining ring (not included). Bearings with a keyway include a machine key for attaching your load. Flanged bearings have a surface with mounting holes for attaching your load. Stainless steel bearings are more corrosion resistant than steel bearings.
Spline | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia., mm | Dia. Tolerance, mm | Lg., mm | Lg. Tolerance, mm | Lg., mm | No. of | Root Dia., mm | Surface Smoothness, microinch | Edge Type | Hardness Rating | Hardness | Heat Treatment | Each | |
Metric—52100 Alloy Steel | |||||||||||||
Splined on Both Ends | |||||||||||||
| 13 | -0.02 to 0 | 200 | -0.05 to 0.05 | 200 | 4 | 11.7 | 16 | Chamfered | Very Hard | Rockwell C60 | Case Hardened | 000000000 | 000000 |
| 13 | -0.02 to 0 | 500 | -0.08 to 0.08 | 500 | 4 | 11.7 | 16 | Chamfered | Very Hard | Rockwell C60 | Case Hardened | 000000000 | 000000 |
| 13 | -0.02 to 0 | 700 | -0.08 to 0.08 | 700 | 4 | 11.7 | 16 | Chamfered | Very Hard | Rockwell C60 | Case Hardened | 000000000 | 000000 |
Material | Keyway | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Spline Dia., mm | For No. of Splines | Overall Lg., mm | OD, mm | Bearing | Ball | Dynamic Load Cap., lbs. | Max. Dynamic Torque, in.-lbs. | With Retaining Ring Grooves | Includes | Dp., mm | Lg., mm | Wd., mm | Each | |
| 13 | 4 | 36 | 24 | Steel | Steel | 600 | 185 | Yes | Machine Key | 1.5 | 15 | 3 | 00000000 | 000000 |
| 13 | 4 | 36 | 24 | Stainless Steel | Stainless Steel | 600 | 185 | Yes | Machine Key | 1.5 | 15 | 3 | 00000000 | 000000 |
Material | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Spline Dia., mm | For No. of Splines | Overall Lg., mm | Flange OD, mm | OD, mm | Bearing | Ball | Dynamic Load Cap., lbs. | Max. Dynamic Torque, in.-lbs. | With Retaining Ring Grooves | Number of Mounting Holes | Each | |
| 13 | 4 | 36 | 43 | 24 | Steel | Steel | 600 | 185 | Yes | 4 | 000000000 | 000000 |
Multipurpose Flame-Retardant Garolite G-10/FR4 Rods
- Color: See Table
- Temperature Range: -100° F to 245° F
- Tensile Strength: 35,000-50,000 psi (Excellent)
- Impact Strength: 5.5-12 ft.-lbs./in. (Excellent)
- Hardness: Rockwell M115 (Extra Hard)
- For Use Outdoors: Yes
- Specifications Met: MIL-I-24768/27, UL 94 V-0
Made of a flame-retardant epoxy resin with fiberglass fabric reinforcement, these G-10/FR4 rods are a good all-around choice. They are strong, machinable, and electrically insulating. Garolite G-10/FR4 is also called epoxy-grade industrial laminate and phenolic.
Ultra-High-Temperature Quartz Glass Rods and Discs
- Color: Clear
- Max. Temperature: 2100° F
- Fabrication: Annealed
Able to withstand temperatures up to 2100° F, this quartz glass is useful in high-temperature applications that also require optical clarity, such as high-intensity lighting, fiber-optic production, and optical lens systems. It provides excellent UV transmission, as well as high transmission in the visible and infrared ranges.
12" Lg. | |||||
|---|---|---|---|---|---|
| Dia., mm | Dia. Tolerance, mm | Edge Fabrication | Lg. Tolerance | Each | |
| 13 | -0.380 to 0.380 | Ground | -0.125" to 0.125" | 00000000 | 000000 |