Roller i.e. cylindrical roller, for e.g. cylindrical roller bearing, has front surface formed at preset distance from middle axis to reduction region in accordance with bent curve, where specific maximum and minimum constants are provided

摘要

The roller has a front surface formed at a preset distance from a roller middle axis (M) to an edge reduction region in accordance with a bent curve which is formed between two limiting curves (y-max, y-min). The limiting curves describe a profile decrease along the X-coordinate in millimeter. Maximum and minimum radii of the edge reduction region are selected according to the standard DIN 5402-1. Maximum and minimum constants are in the range of 6-100, where the maximum constant is greater than or equal to minimum constant.