Abstract: A method for testing a life of a radial rolling bearing and a radial rolling-bearing testing device. According to the method for testing the life of the radial rolling bearing and the radial rolling-bearing testing device, a portion of the radial rolling bearing is immersed in lubricant, and a bearing life is tested by rotating an outer ring and an inner ring relative to each other in a state where a radial load is applied to the radial rolling bearing. The radial load is applied in a horizontal direction.

Abstract: A radial rolling-bearing testing device includes a rotary shaft which an inner ring of a radial rolling bearing is fitted, a rotational driving section which rotates a rotary shaft, a lubricant reservoir which is configured so as to retain lubricant in which a portion of the radial rolling bearing is immersed, and a load applying section which is configured so as to apply a radial load to the radial rolling bearing. A bottom surface of the lubricant reservoir is a curved concave surface which has a partially cylindrical form which is concentric to a central axis of the rotary shaft. An entirety of a housing which supports the rotary shaft may be integrally formed.

Abstract: A radial rolling-bearing testing device includes a housing, a lubricant reservoir provided inside the housing and configured so as to retain lubricant in which a portion of a radial rolling bearing is immersed, a rotary shaft which is supported so as to freely rotate inside the housing and which an inner ring of the radial rolling bearing is fitted outside, a rotational driving section which is configured so as to rotate the rotary shaft, a load applying section which has a pressurizing device and is configured so as to apply a load to the radial rolling bearing, and a vibration sensor configured so as to detect a vibration in the radial rolling bearing. The vibration sensor is provided on an outside of the housing, and between the pressurizing device and the radial rolling bearing in a direction in which the load applies.

Abstract: A radial rolling-bearing testing device includes a housing, a lubricant reservoir provided inside the housing and configured so as to retain lubricant in which a portion of a radial rolling bearing is immersed, a rotary shaft which is supported so as to freely rotate inside the housing and which an inner ring of the radial rolling bearing is fitted outside, a rotational driving section which is configured so as to rotate the rotary shaft, a load applying section which has a pressurizing device and is configured so as to apply a load to the radial rolling bearing, and a vibration sensor configured so as to detect a vibration in the radial rolling bearing. The vibration sensor is provided on an outside of the housing, and between the pressurizing device and the radial rolling bearing in a direction in which the load applies.

Abstract: A method for testing a life of a radial rolling bearing and a radial rolling-bearing testing device. According to the method for testing the life of the radial rolling bearing and the radial rolling-bearing testing device, a portion of the radial rolling bearing is immersed in lubricant, and a bearing life is tested by rotating an outer ring and an inner ring relative to each other in a state where a radial load is applied to the radial rolling bearing. The radial load is applied in a horizontal direction.

Abstract: A radial rolling-bearing testing device includes a rotary shaft which an inner ring of a radial rolling bearing is fitted, a rotational driving section which rotates a rotary shaft, a lubricant reservoir which is configured so as to retain lubricant in which a portion of the radial rolling bearing is immersed, and a load applying section which is configured so as to apply a radial load to the radial rolling bearing. A bottom surface of the lubricant reservoir is a curved concave surface which has a partially cylindrical form which is concentric to a central axis of the rotary shaft. An entirety of a housing which supports the rotary shaft may be integrally formed.