57 Sport Gearbox 48:1 HD Ratio

This is a Trilobe, thread forming, or thread rolling screw, ideal for applications where the screw is being threaded into plastic or metal. 

A flat washer is part of the 5/16 hex head, providing more surface area contact than a regular hex head. The increased bearing area decreases the likeliness of crushing mating surfaces. Trilobe, or Thread Rolling, screws have a blunt tapered point that requires a pre-drilled or punched hole; eliminates chips and permits replacement with standard screw. Zinc plating froms a zinc carbonate film that greatly retards the corrosion rate in a normal atmosphere, which is similar to the aluminum oxide film that forms on aluminum that accounts for its low corrosion rate. 

Product Overview:

• Quantity: 50
• Diameter: #10
• Finish: Zinc
• Head: 5/16 Hex with integral washer
• Thread Length: 3/4"
• Material: Steel
• Thread Size: 10-24
• Thread Type: Trilobe, Thread Rolling
• Weight per Screw: 0.007 lbs
• Package Weight: 0.34 lbs

Each hub now has a "flower" pattern that fits and keys into our 42T 5 mm HTD Pulley, which means you are no longer constrained to our legacy 500EX Hex Hub for compatibility with this pulley. Every hub still maintains a closed-profile hole for maximum strength. Every shaft hub has been designed with bearing bosses on both sides that have been sized appropriately for the mating bearings that would pair with the bore through the hub, which means you can run each hub right against a bearing with no need for extra spacers. All of these hubs are also made from 7075-T6 aluminum, which is much stronger than the previously used 6061-T6, 6005, and 6105 alloys from our older designs. Where possible, the shoulder on shaft hubs was reduced to 7/8" in diameter for an easier fit with our molded plastic wheels, while still maintaining a precise 1.125" diameter boss for locating in wheels, sprockets, gears, and more. 

The holes are evenly spaced on a 1.875 in. circle and 0.201 inches in diameter. That's a perfect size for #10 bolts!

Learn how to attach these hubs to AndyMark wheels by watching this video!

HiGrip wheels provide superior traction for robot movement. HiGrip wheels feature an aggressive tread pattern providing maximum transfer of gearbox power to the ground. A robust polycarbonate core means these wheels are up to the challenge for high impact and speed applications. Varying durometers mean you can choose just how grippy these wheels can be. White or 77A durometer HiGrip wheels have a long life and provide good traction. Black or 60A durometer HiGrip wheels have an intermediate life and higher grip than white. Blue or 60A durometer HiGrip wheels provide the most traction and will wear quickly as a result. The bolt pattern and bore of these wheels allow for convenient bearing placement and easy attachment to other motion parts such as sprockets and pulleys. 

Product Usage: 
Many thread locking materials are not compatible with polycarbonate and can eat away at the plastic. Be sure to check which adhesives are okay to use with this product. This link will allow you to check which materials are okay to use with what adhesives, http://bit.ly/loctitematerialcheck

Specifications:

• Diameter: 4" or 6"
• Body Material: Polycarbonate
• Tread Material: Thermoplastic Polyurethane
• Durometer: 77A (Grey), 60A (Black), 50A (Blue)
• Bore: 0.95", with bearing pockets of 1.124" diameter x 0.25" deep on both sides
• Bolt Circle: Six holes (0.17" diameter) on a 1.875" diameter bolt circle
• 77A Carpet CoF: 0.95-1.0 Static
• 60A Carpet CoF: 0.77 Static
• 50A Carpet CoF: 0.97 Static
• 4" Wheel Load Capacity: 100 Pounds
• 6" Wheel Load Capacity: 90 Pounds

Usage: 
Use #10-24x3/4 thread forming screws to attach sprockets or hubs to this wheel. Many thread locking materials are not compatible with polycarbonate and can eat away at the plastic. Be sure to check which adhesives are okay to use with this product. This link will allow you to check which materials are okay to use with what adhesives, http://bit.ly/loctitematerialcheck

With Axle and Hub:

• If you wish to drive this wheel with an Axle and Hub, you can pick your hub by fitting any of the AndyMark hubs (not included) to this wheel. If this is your choice, then no bearing is needed. Use #10-24x3/4 thread forming screws to fasten a hub to this wheel.

With Sprocket:

• If you wish to drive this wheel with a sprocket, then the sprocket needs to be attached to the side of the wheel, and two ball bearings need to be pressed into the wheel (one on each side). The ball bearing must have a 1.125" od. For a 1/2" id, use am-0181 or am-0029. For a 3/8" id, use am-0209. Use #10-24x3/4 thread forming screws to fasten the sprocket to the wheel.

With Bearings:

• To press bearings into this wheel (for a free spinning wheel or for use with a sprocket), two ball bearings need to be pressed into the wheel (one on each side). The ball bearing must have a 1.125" od. For a 1/2" id, use am-0181 or am-0029. For a 3/8" id, use am-0209.

This is a Heavy Duty Hex Bearing which outperforms our previous 1/2" Hex Bearings as it has a Heavy Duty Inner Race. This FR8ZZ-HexHD bearing, 1/2" hex bore, flanged, heavy duty inner race, shielded ball bearing, has an inner race that is thicker and stronger than our recent offering of a similar bearing (am-0279). This bearing has more material between the corners of the hex bore and the edge of the race making it stronger and much less likely to crack under high load.

This bearing is guaranteed to have a stronger, thicker race. 100% of these bearings have been quality checked for a smooth fit over 1/2" hex stock here at AndyMark. Many of our long-time customers will recognize this bearing, as it is the same version we sold back in 2008-2011, and we did not have any failures. Now, it is renamed and quality checked for your high load needs - including drive chassis with cantilevered wheels.

Specifications:

• Inside diameter: 0.500-0.502 inch hex bore
• Outside diameter: 1.125 inch
• Flange thickness: 0.062 inch
• Overall thickness: 0.312 inch
• Weight: 0.05 pound

This shaft is an optional part that be used in the 57 Sport Gearbox, as well as the CIM Sport Gearbox. If your application requires a longer output shaft you can disassemble the 57 Sport or CIM Sport and swap for this shaft.

Specifications:

• Material: Steel
• Weight: 0.24 Pounds
• Overall Length: 4.23 in.
• Flat to Flat: 0.5 in. Hex
• End of Shaft Feature: 10-32 Threaded Hole

Here is a high-traction wheel which includes a grippy rubber tire, an pneumatic inner tube, and a strong plastic hub. These parts are shipped to you in kit form. The unique aspect about this product is the competition-ready hub. The hub accepts any 200x50mm tire and inner tube, 1.125 in. (outside diameter) ball bearings (2 per wheel are needed), and the mounting holes needed to install hardware to be sprocket-driven or hub-driven. This wheel ships as a separate tire, inner tube, and hub halves.

Assembly is required.

Important Notes:

• Diameter: The nominal diameter for this wheel is actually 7.65 in. when inflated normally.
• Tube pinching: When assembling the tube within the two hub halves, be careful not to pinch the tube rubber between the plastic hub halves. If assembled with the tube pinched between the hub halves, the tube may puncture and leak.

RPM Rating and notes:

These wheels are designed to be propulsion wheels for driving a robot or wheel chair. The design intent is to be contacting the ground, being driven by a gearbox at a maximum speed of approximately 500 rpm (which results in 17 feet/sec).

Within some applications, this wheel has been used as a shooter of objects, spinning at a very high rpm. For these applications, a higher rpm shows that the wheel may wobble, since the valve stem is mounted off to one side of the center of the wheel hub. We have seen properly balanced wheels, using securely mounted hardware (longer screws, washers) that can handle 5,000 rpm. When spinning this wheel at speeds up to 5,000 rpm, please take proper safety precautions.


Included Hardware:

• Tire for 8 Inch Pneumatic Wheel (Metric Size 200x50mm)
• Inner Tube for 8 Inch Pneumatic Wheel, with 90 Degree Stem (for 200x50mm Tire)
• Hub Assembly for 8 inch Pneumatic Wheel, which includes two (2) black plastic hub halves and six (6) 4-40 x1 Pan Head Phillips thread rolling screws

NOT Included Hardware:

• Bearings
• #10 Screws and Nuts Needed to Mount a Hub (2 Inch Long Screws are Needed) or a Sprocket (2.25 Inch Long Screws are Needed)
• Aluminum Hub, if Driven by a Shaft

Wheel Structure:

The hub halves are held together with the #4-40 screws. This wheel can accept #10-32 screws for mounting sprockets or hubs, but these are NOT included since different length screws are needed to mount hubs or sprockets. These #10 screws can be mounted to the included 1.875 inch diameter bolt circle. The hub halves need to be assembled together so that the valve stem clearance holes line up. Locating features are present for easy alignment.

Usage:

With Axle and Hub:

• In order to drive this wheel with a hub, use Hardware Kit 11, which includes #10-32x2 screws (6) and #10-32 nylock nuts (6)

With Sprocket:

• In order to drive this wheel with a plate sprocket, use Hardware Kit 12, which includes a 550 Sprocket Spacer, #10-32x2.25 screws (6) and #10-32 nylock nuts (6).
• Two (2) bearings are needed for this wheel, if being driven by a sprocket. Use bearings with a 1.125 inch outer diameter. No flange is needed on either of the bearings.

Use as a caster:

• If you want to let this wheel spin without being driven, you will need to install two (2) bearings with 1.125 inch outer diameter.

Specifications

• Bolt Pattern: 6 holes, 0.20 diameter on 1.875 in. diameter bolt circle
• Bore: 1.00 in. thru hole, with 1.125 in. x 0.375 in. deep bearing pockets
• Diameter: 7.65 in.
• Load Capacity: 120 lbs
• Material: black polycarbonate, gray rubber
• Maximum Pressure: 35 psi
• Tread Width: 2 in.
• Valve Stem: The valve stem may stick out up to 0.375 in. from hub
• Weight: 1.13 lbs
• Width Across Middle: 1.8 in.

Documents

Guide(s)

8-inch Pneumatic Wheel Assembly Instructions AM-0970.pdf

Peanut Extrusion is the 1"x1" installment of our easy-to-use structure system. The profile of this extrusion looks like a peanut, and has two holes sized for 1/4-20 thread-forming screws. The added mid-spans are positioned to flank a pair of bolts that self thread into an adjoining piece pf Peanut Extrusion. These spans prevent the extrusion from getting crushed by over-tightening. Enjoy the ease of creating rigid corner joints without gussets, with a closed profile that prevents dust and debris build up. Whether you are making a table in your shop or a strong frame for a robot, this extrusion is the one for you!

Walnut Extrusion is the 2"x1" iteration of the Peanut profile.

Specifications

• Height: 1.0 in.
• Hole Size: Sized for 1/4-20 Thread-Forming Screw
• Length: Selectable Above (+/- 1")
• Material: 6063-T6 Aluminum
• Wall Thickness: 0.050 in.
• Weight Per Foot: 0.325 Pounds
• Width: 1.0 in.

Documents

CAD File(s)

am-3090-1 One Foot Peanut Extrusion.STEP

These custom designed collar clamps have been designed specifically with FIRST Robotics Competition teams in mind. The one-piece collar clamp is a nice fractional 1/2 in. width to make shaft stackups easy. The clamping force is provided by a 10-32 socket head screw, which is bigger than most used in the competition marketplace.  This provides a high-strength clamping solution that shouldn't strip out when you need it most. You can even replace the 10-32 screw if it becomes lost with the screws historically used in the AM14U family of chassis. These thoughtfully designed collar clamps also have small bosses on each side. This allows these collar clamps to be installed directly adjacent to an FR8ZZ Round or FR8ZZ Hex bearing without rubbing on the outer races for smooth operation.

This updated version of the AndyMark 775 RedLine Motor is an even faster and more powerful version of this popular 775-class motor platform. With a power rating of up to 363W, this motor is capable of delivering even more immense power in the same small lightweight package over the previous version. This ball-bearing supported, air cooled motor is best used in high-speed applications where the motor will not be stalled for long periods such as shooters, conveyors, and intake mechanisms. With sufficient care and attention to your application's traction limit, this motor can be effective in FRC drive applications as well.

This variation of the RedLine comes with a 16 tooth, 0.7 Module pinion and mounting screws (am-3768) already installed allowing this motor to be installed into either a 57 Sport or a Dual 775 Sport gearbox. Not only does this take the risk of damaging the motor during pinion installation out of your hands, it also means that this counts as a COTS part in FRC.

This kit is the needed hardware to attach a 550 or 540 motor like our 9015 (am-0912) to a 57 Sport Gearbox.

Specifications:

• Gear Bore: 3.2 mm
• Gear Material: Steel

Individual Components within this Bundle:

• 1 - RS-500 Motor Pinion Gear (am-3783)
• 2 - M3 x 8 mm SHCS
• 2 - M3 Lock Washer