624 Roller Thrust Fork
A bolt-down fork that holds one 624 bearing (4 x 13 x 5 mm) on a radial M4x25 axle. It is part of the 'MG996R Heavy Pan-Tilt Camera Gimbal' kit, which uses three of them. The foot is 36 x 22 x 4 mm and fixes to the base deck's M3 heat-sets through two 3.4 mm holes 20 mm apart. The roller top sits 14 mm above the deck, and M3 washers under the foot raise it to 17 mm. The rollers carry the pan platter's weight, so the MG996R's spline doesn't have to.
mechanism kit 624-bearing pan-tilt