Sealing ring and radial plunger motor

The utility model provides a sealing ring and a radial plunger motor, the sealing ring comprises an annular main body, the cross section of the annular main body is set as follows: one of the inner side surface and the outer side surface in the radial direction forms a convex arc shape, the other one forms a recess, and at least one end face of the two ends of the annular main body forms a plane. According to the technical scheme, the sealing ring is not prone to disengaging from the sealing groove when installed in the sealing groove, and the problems that in the prior art, the sealing ring is prone to disengaging from the sealing groove, so that the installation efficiency is low, and when the installation structure is inserted into the cylindrical structure, the sealing ring disengaging from the sealing groove is prone to being damaged or even cut off can be solved. 本申请提供一种密封圈及径向柱塞马达，所述密封圈包括环形主体，所述环形主体的横截面设置为，在径向上的内侧表面和外侧表面中的一者形成为凸出的圆弧形，另一者上形成有凹陷，且所述环形主体两端的至少一个端面形成为平面。本申请提供的技术方案，密封圈安装于密封槽内时不容易脱出密封槽，可以解决现有技