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1:2 brass cone gear reduction set Description: 1. Delivery a set of gears (20T + 40T) 2.40T taper wheel fixes is 6 mm hole, 20t taper wheel can choose 3 / 3.17 / 4 mm Suitable for the occasion to slow down at the same time and slow down 90° corner, the transmission accuracy can be up to size 8, the inner hole processing tolerances H7, the deviation of only 0.015 mm, can form almost no clearance and standard axle arrangement, can avoid the assembly error of the different heart, thus smoother, smaller noise and longer service life.) › See more product details; Product description Taper wheels are most commonly used to drive two vertical shafts, but also set up to drive two shafts at other angles. The inner hole is finished and the tolerance is H8. 1:1 45°, 2 gears move 90°. Unit: mm Taper wheels transfer the movement between crossing waves while the movement between two parallel waves transmits the movement between two parallel waves. Suitable for the occasion to slow down at the same time and slow down by 90° corner, the gear accuracy can be up to size 8, the inner hole processing tolerances H7, the deviation of only 0.015 mm, can form almost no space and standard axle arrangement, can avoid the mounting error of the different heart, thus smoother, smaller noise and longer service life); Product description Taper wheels are most commonly used to drive two vertical shafts, but also set up to drive two shafts at other angles. The inner hole is finished and the tolerance is H8. 1:1 45°, 2 gears move 90°. Unit: mm Taper wheels transfer the movement between crossing waves while the movement between two parallel waves transmits the movement between two parallel waves. Suitable for the occasion to slow down at the same time and slow down by 90° corner, the gear accuracy can be up to size 8, the inner hole processing tolerances H7, the deviation of only 0.015 mm, can form almost no space and standard axle arrangement, can avoid the mounting error of the different heart, thus smoother, smaller noise and longer service life); Taper wheels are most commonly used to drive two vertical shafts, but also set up to drive two shafts at other angles. The inner hole is finished and the tolerance is H8. 1:1 45°, 2 gears move 90°. Unit: mm Taper wheels transfer the movement between crossing waves while the movement between two parallel waves transmits the movement between two parallel waves. Suitable for the occasion to slow down at the same time and slow down by 90° corner, the gear accuracy can be up to size 8, the inner hole processing tolerances H7, the deviation of only 0.015 mm, can form almost no space and standard axle arrangement, can avoid the mounting error of the different heart, thus smoother, smaller noise and longer service life)