Schaller GrandTune Hexagonal Counter Bearings 0.35 in Conical
The Schaller GrandTune conical hexagonal counter bearings are precision-engineered replacement bushings designed specifically for GrandTune series tuning machines. These components ensure stable alignment, smooth operation, and reliable seating for guitar, ukulele, and mandolin tuners.
Featuring a 0.35-inch (8.8 mm) conical outer diameter and an inner diameter of 0.24 inches (6.1 mm), these counter bearings feature a 0.39-inch (10 mm) hex wrench size for precise installation. The press-fit depth of 0.23 inches (5.9 mm) delivers a secure and flush mount into standard headstock bores.
Supplied as a complete set of six, these authentic Schaller replacement parts restore or maintain peak tuning machine performance on compatible GrandTune models.
| Brand | Schaller |
| Product Type | Tuning Machine Bushings / Counter Bearings |
| Compatibility | Schaller GrandTune (Guitar, Ukulele, Mandolin) |
| Design | Hexagonal, 0.39 in (10 mm) wrench size (0.45 in / 11.4 mm tip to tip) |
| Outer Diameter | 0.35 in (8.8 mm) conical |
| Inner Diameter | 0.24 in (6.1 mm) |
| Press-fit Depth | 0.23 in (5.9 mm) |
| Quantity | Set of 6 |
| Weight | 0.04 lb |


















