Support structure and photovoltaic tracking support

A photovoltaic support structure comprising:

• a main beam of a photovoltaic tracking support in communication with a platen, the platen in communication with a first arc bearing, the first arc bearing in communication with a bearing base;
• a plurality of first rollers rotatably connected to the bearing base, the plurality of first rollers in communication with an outer sidewall of the arc bearing;
• and
• a plurality of second rollers rotatably connected to the bearing base, the plurality of second rollers in communication with an arcuate inner sidewall of the arc bearing.

A photovoltaic support structure comprising:

• a bearing base;
• a first roller rotatably connected to the bearing base;
• a second roller rotatably connected to the bearing base;
• and
• an arc bearing for supporting a main beam of a photovoltaic tracking support, the first roller being used for rolling and abutting an arcuate outer sidewall of the arc bearing, and the second roller being used for rolling and abutting an arcuate inner sidewall of the arc bearing for rotating the arc bearing relative to the bearing base.