Watch an explanation of the Browning 5-Pack & 6-Pack Upgrades for a knee mill Bridgeport spindle, including how they compare to the standard 3-Pack (3 bearing) design.

Bill Murphy of C & M Precision Spindle illustrates the key differences between each upgrade, including who should consider the upgrade, when it's the optimal time to get the upgrade, and why someone would prefer one upgrade over the other. Key points of discussion include how more bearings affect the spindle’s cutting precision, overall lifespan, and efficiency.

Also included in the video are helpful tips about bearings, spindle care, and the origins of the Browning name in the 5-Pack/6-Pack Upgrade.

For more information about the Browning 5-Pack/6-Pack Upgrade, including estimates and how to ship your spindle, please visit our website: https://www.cm-spindle.com/spindle-services/spindle-upgrades/3-pack-5-pack-6-pack-upgrades/

See how to dial in the back of a spindle shaft in order to stop unacceptable run out using a spring punch.

Bill Murphy of C & M Precision Spindle goes over a less common but helpful process of dialing in the back of a precision spindle, in this case a Matsuura 20,000 RPM. He uses a spring punch to take stress out in the nut (here a KTM-12). Stress can build up in nuts on the threads since they are helical planes.

Tools used in the video:

- Noxon Spring Tools 5 Piece Master Mechanic Set (https://springtools.com/products/50x08-5-piece-master-mechanics-set)

Also included in the video are some helpful tips on re-inserting a set screw, matching bearings, and determining the top and bottom of angular contact bearings.

In addition, Bill goes over some of the differences between a 3-Pack and 5-Pack Bearing configuration. To learn more about 3-, 5-, and 6-Pack Bearing Upgrades, please visit our website: https://www.cm-spindle.com/spindle-services/spindle-upgrades/3-pack-5-pack-6-pack-upgrades/.