Split type ultra-high-speed bearing for dental department

• Main Author: ZHOU JIEMING
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2021
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model relates to a split type ultra-high-speed dental bearing, and belongs to the technical field of bearing machining equipment. Comprising a bearing outer ring and a bearing inner ring, a rotatable ball retainer is arranged between the bearing outer ring and the bearing inner ring, a group of outer balls are arranged between the ball retainer and the bearing outer ring, and a group of inner balls are arranged between the ball retainer and the bearing inner ring. By arranging the two groups of balls, the rotating speed ratio of the bearing is adjusted, the bearing rotating speed of the balls is reduced, and the high-speed abrasion of the bearing is reduced, so that the service life of the bearing is prolonged, and the torque of the dental high-speed handpiece can be increased. 本实用新型涉及一种对开式牙科超高速轴承，属于轴承加工设备技术领域。包括轴承外圈和轴承内圈，所述轴承外圈和轴承内圈之间设有可旋转的滚珠保持器，所述滚珠保持器和轴承外圈之间设有一组外滚珠，所述滚珠保持器和轴承内圈之间设有一组内滚珠。通过两组滚珠的设置，调节轴承转速速比，降低滚珠的承载转速，减少轴承的高速磨损，从而提高轴承的使用寿命，也能增加牙科高速手机的扭矩。