Pololu Universal Aluminium Mounting Hub for 4mm Shafts - #4-40 Holes (2-Pack)




Pololu Universal Aluminium Mounting Hub for 4mm Shafts - #4-40 Holes (2-Pack)
These Pololu universal aluminium mounting hubs allow you to mount custom wheels and mechanisms to 4mm diameter motor shafts
The set includes two hubs, two #4-40 set screws for securing the hubs to motor shafts, and one 0.05ⳠAllen wrench for use with the set screws. Each hub has four threaded mounting holes for #4-40 screws (not included).
We have an assortment of universal mounting hubs available, spanning several shaft sizes and featuring mounting holes threaded for metric or imperial screws. These universal mounting hubs are designed to work with most 4mm diameter shafts, including round shafts and âDâ shafts.
Each of the two included hubs has four mounting holes for #4-40 screws (not included), letting you mount custom wheels or mechanisms to your motors. The two included #4-40 hex set screws (one for each hub) allow secure coupling of shaft to hub, and a 0.05Ⳡhex wrench (often the smallest size in SAE Allen wrench sets) is included for use with the set screws.
The product images show a hub with Pololuâs 25:1 metal gearmotor 20Dx44L and a Pololu 20D metal gearmotor bracket. These hubs will work with any 20D metal gearmotor or 25D metal gearmotor, and they also work with 60mm, 70mm, 80mm, and 90mm Pololu wheels (excluding the Multi-Hub versions; see the individual wheel pages for compatibility details).
Specifications
- Size: 19 mm diameter Ă 5 mm thick
- Weight: 3.2g*
- Shaft diameter: 4mm
- Mounting hole size: #4-40**
*For a single hub only (without set screw)
**This is also the size of the set screw
Original: $10.60
-65%$10.60
$3.71Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
These Pololu universal aluminium mounting hubs allow you to mount custom wheels and mechanisms to 4mm diameter motor shafts
The set includes two hubs, two #4-40 set screws for securing the hubs to motor shafts, and one 0.05ⳠAllen wrench for use with the set screws. Each hub has four threaded mounting holes for #4-40 screws (not included).
We have an assortment of universal mounting hubs available, spanning several shaft sizes and featuring mounting holes threaded for metric or imperial screws. These universal mounting hubs are designed to work with most 4mm diameter shafts, including round shafts and âDâ shafts.
Each of the two included hubs has four mounting holes for #4-40 screws (not included), letting you mount custom wheels or mechanisms to your motors. The two included #4-40 hex set screws (one for each hub) allow secure coupling of shaft to hub, and a 0.05Ⳡhex wrench (often the smallest size in SAE Allen wrench sets) is included for use with the set screws.
The product images show a hub with Pololuâs 25:1 metal gearmotor 20Dx44L and a Pololu 20D metal gearmotor bracket. These hubs will work with any 20D metal gearmotor or 25D metal gearmotor, and they also work with 60mm, 70mm, 80mm, and 90mm Pololu wheels (excluding the Multi-Hub versions; see the individual wheel pages for compatibility details).
Specifications
- Size: 19 mm diameter Ă 5 mm thick
- Weight: 3.2g*
- Shaft diameter: 4mm
- Mounting hole size: #4-40**
*For a single hub only (without set screw)
**This is also the size of the set screw




















