The Claas 0002123931 is a genuine OEM retaining ring, specifically a B1 type, designed for secure fastening within Claas agricultural and construction machinery. This critical component ensures the proper positioning and retention of parts, preventing axial movement. With precise dimensions of 75 mm inner diameter, 90 mm outer diameter, and 10 mm thickness, it guarantees a perfect fit and reliable performance in compatible Claas models. Manufactured to Claas's stringent quality standards, this retaining ring provides durability and long-lasting service, essential for maintaining the operational integrity of your equipment.