Best Pololu in 2026

These universal mounting hubs are designed to work with most 6mm shafts, including round and 'D' shafts.

Each hub has six mounting holes for 4-40 screws (not included), letting you mount custom wheels or mechanisms to your motors.

This force-sensing resistor (FSR) from Interlink Electronics is a passive component that exhibits a decrease in resistance when there is an increase in the force applied to the 1.5″ נ1.5″ (4 cm נ4 cm) active area

With a force sensitivity range of a few grams to a few kilograms, this sensor is optimized for use in human touch control applications

Minimum Operating Voltage: 6.0V

Maximum operating voltage: 42 V

Maximum output current: 600 mA

The Pololu Zumo chassis is a small, tracked robot platform that is less than 10 cm on each side

The chassis is composed of black ABS and features a compartment for four AA batteries and sockets for two micro metal gearmotors

It ships as a kit with two silicone tracks, two drive and two idler sprockets, a 1/16″ acrylic mounting plate, and mounting hardware. (Motors and batteries are not included.)

Durable Material: The coupling connector is made of 45# steel( it is better than copper and aluminum alloys ), heat and electroplated process make it sturdiness and insulation, striking shaft more stable and easy for installment and replacement.

Widely use: used in model shaft connection, perfect accessories for RC Model motor.

Size:Inner Diameter: 6mm,Height:12mm,Fixed Hole Screw: M3.

These universal mounting hubs are designed to work with most 6mm shafts, including round and 'D' shafts.

Each hub has six mounting holes for 4-40 screws (not included), letting you mount custom wheels or mechanisms to your motors.

package includes: 4 pcs 5mm Flange Shaft Coupling with 8 Screws, 4 pcs Allen Wrench, 16 stainless steel Screws

Made of 45# steel, hardened, surface plated, durable.

Cylinder Size (IDxODxH): 5x10x10mm, Base Size: 22mm Fastening Screw Hole: M3, Base Fixing Screw Hole: M3

These smooth rods are almost impossible to bend as they have undergone a cold rolling process, increasing the steel’s strength by up to 20% and ensuring tight tolerances. These rods’ zinc plating exponentially increases their corrosion resistance for both indoor and outdoor heavy-duty use.

If you are looking for a replacement axle for your wheeled equipment, these smooth rods are the perfect solution. Compatible with most wheelbarrows, hand trucks, dollies, wagons, yard trailers, beach carts, and pressure washers with 3/4 inch axles.

These smooth rods are also compatible with 3/4 inch axle cap nuts and shaft collars.Each stick weighs about 4.36 pounds

National Hardware's 1/4" x 36" Smooth Rod - Steel is designed for axles on wagons, carts, and other do-it-yourself projects.

Made from steel for durability.

Can be drilled, cut, heated, or shaped

Part Number: 99144

Country Of Origin: United States

Package Dimensions: 11.176 L X 10.921 W X 4.572 H (Centimeters)

The SKF SPEEDI-SLEEVE is a fast and effective way to refinish worn shaft. It’s quicker than remetalizing or regrinding, and provides an improved sealing system. The outside surface of an SKF SPEEDI-SLEEVE forms an ideal sealing surface. Many popular regrinding and refinishing techniques produce a surface that cannot be properly sealed

The standard range of SKF SPEEDISLEEVE sizes covers shaft diameters from .472” to 8” (12 mm to 200 mm). The SKF SPEEDI-SLEEVE is thinwalled, 0.011” (0,28 mm), and made of high quality stainless steel. The contact surface is wearresistant with a finish of Ra 10 to 20 µin (0,25 to 0,5 µm). No expensive machining or preparation is required before mounting. Downtime is reduced since installation only takes a few minutes

"SKF SPEEDI-SLEEVE. These thin-walled stainless steel shaft repair sleeves can come to immediate rescue when a crankshaft needs a new sealing surface. "

【Made for 6mm D-Shafting 】This hub allows you to mount components to a 6mm diameter D-shaft.

【 Part of a Large Ecosystem of Parts with Top Notch Technical Support 】The goBILDA ecosystem has many parts that bolt directly to this hub, including wheels, gears, sprockets, track sprockets, timing pulleys, round belt pulleys, winch pulleys, control arms, and more! Buyer beware of poor imitations which are often cast or machined from lesser grade aluminum with no attention to detail, quality or precision.

【 High-Speed Design - Completely Balanced 】 The innovative Sonic Hub design is perfectly balanced. This precisely machined part will not introduce vibrations into your build, even in high-speed applications.

Part Number: 99168

Country Of Origin: United States

Package Dimensions: 11.176 L X 11.176 W X 4.572 H (Centimeters)

The SKF SPEEDI-SLEEVE is a fast and effective way to refinish worn shaft. It’s quicker than remetalizing or regrinding, and provides an improved sealing system. The outside surface of an SKF SPEEDI-SLEEVE forms an ideal sealing surface. Many popular regrinding and refinishing techniques produce a surface that cannot be properly sealed

The standard range of SKF SPEEDISLEEVE sizes covers shaft diameters from .472” to 8” (12 mm to 200 mm). The SKF SPEEDI-SLEEVE is thinwalled, 0.011” (0,28 mm), and made of high quality stainless steel. The contact surface is wearresistant with a finish of Ra 10 to 20 µin (0,25 to 0,5 µm). No expensive machining or preparation is required before mounting. Downtime is reduced since installation only takes a few minutes

"SKF SPEEDI-SLEEVE. These thin-walled stainless steel shaft repair sleeves can come to immediate rescue when a crankshaft needs a new sealing surface. "

Manufactured by Baldor Electric Company

Product Type :Auto Part

Package Dimensions :11.176 Cms L X10.921 Cms W X4.572 Cms H

Country Of Origin :United States

The SKF SPEEDI-SLEEVE is a fast and effective way to refinish worn shaft. It’s quicker than remetalizing or regrinding, and provides an improved sealing system. The outside surface of an SKF SPEEDI-SLEEVE forms an ideal sealing surface. Many popular regrinding and refinishing techniques produce a surface that cannot be properly sealed

The standard range of SKF SPEEDISLEEVE sizes covers shaft diameters from .472” to 8” (12 mm to 200 mm). The SKF SPEEDI-SLEEVE is thinwalled, 0.011” (0,28 mm), and made of high quality stainless steel. The contact surface is wearresistant with a finish of Ra 10 to 20 µin (0,25 to 0,5 µm). No expensive machining or preparation is required before mounting. Downtime is reduced since installation only takes a few minutes

"SKF SPEEDI-SLEEVE. These thin-walled stainless steel shaft repair sleeves can come to immediate rescue when a crankshaft needs a new sealing surface. "

Product Type:Auto Part

Item Package Dimension:10.922 cm L X10.922 cm W X4.572 cm H

Item Package Weight:0.2 lbs

these heavy-duty lockouts feature all steel construction, including chrome-moly internals, for the ultimate in durability and strength

the hubs will not disengage under high torque applications and defaults to the locked position under use

engagement comes from just a 1/3 turn of the all-steel, low-profile bezel

The SKF SPEEDI-SLEEVE is a fast and effective way to refinish worn shaft. It’s quicker than remetalizing or regrinding, and provides an improved sealing system. The outside surface of an SKF SPEEDI-SLEEVE forms an ideal sealing surface. Many popular regrinding and refinishing techniques produce a surface that cannot be properly sealed

The standard range of SKF SPEEDISLEEVE sizes covers shaft diameters from .472” to 8” (12 mm to 200 mm). The SKF SPEEDI-SLEEVE is thinwalled, 0.011” (0,28 mm), and made of high quality stainless steel. The contact surface is wearresistant with a finish of Ra 10 to 20 µin (0,25 to 0,5 µm). No expensive machining or preparation is required before mounting. Downtime is reduced since installation only takes a few minutes

"SKF SPEEDI-SLEEVE. These thin-walled stainless steel shaft repair sleeves can come to immediate rescue when a crankshaft needs a new sealing surface. "

The SKF SPEEDI-SLEEVE is a fast and effective way to refinish worn shaft. It’s quicker than remetalizing or regrinding, and provides an improved sealing system. The outside surface of an SKF SPEEDI-SLEEVE forms an ideal sealing surface. Many popular regrinding and refinishing techniques produce a surface that cannot be properly sealed

The standard range of SKF SPEEDISLEEVE sizes covers shaft diameters from .472” to 8” (12 mm to 200 mm). The SKF SPEEDI-SLEEVE is thinwalled, 0.011” (0,28 mm), and made of high quality stainless steel. The contact surface is wearresistant with a finish of Ra 10 to 20 µin (0,25 to 0,5 µm). No expensive machining or preparation is required before mounting. Downtime is reduced since installation only takes a few minutes

"SKF SPEEDI-SLEEVE. These thin-walled stainless steel shaft repair sleeves can come to immediate rescue when a crankshaft needs a new sealing surface. "