MIKASA CORPORATION

Based in Hiroshima, Japan, Mikasa Corporation is a diversified manufacturer that has operated for more than a century, establishing a distinct footprint in the maritime and heavy industry sectors through its specialized industrial rubber division. Founded in 1917, the organization initially focused on general rubber manufacturing before expanding its technical scope to address critical engineering challenges in naval architecture and fluid dynamics. While the wider corporation is also known for consumer goods, its industrial arm is strictly dedicated to supporting marine engineering, dredging, and power generation infrastructure. In the maritime domain, Mikasa is recognized primarily for its development and production of propulsion shaft components. The company entered this niche in the early 1970s, responding to a global scarcity of lignum vitae, a dense wood traditionally used for submerged bearings. Leveraging its expertise in polymer science, Mikasa engineered high-durability rubber bearings that function effectively using water as a lubricant. This water-lubricated design eliminates the need for oil, thereby preventing stern tube oil leakage and significantly reducing the environmental impact of vessel operations. The company’s operations focus heavily on ensuring the reliability of ship propulsion systems. Its core maritime offerings include stern tube bearings, pump bearings, and rubber linings for propeller shafts. Mikasa has developed specialized heavy-duty bearing variants capable of supporting large commercial vessels and icebreakers, including Antarctic exploration ships which require exceptional durability to withstand extreme load fluctuations. These components are manufactured by bonding specialized rubber compounds to metal shells, a process designed to minimize friction and wear on propeller shafts while dampening vibration. Beyond commercial shipping, Mikasa Corporation supplies trusted components to government and public sector fleets. Its equipment is utilized by the Japan Coast Guard and the Japan Maritime Self-Defense Force, underscoring the reliability of its manufacturing standards in mission-critical environments. The company also provides condition monitoring systems that allow operators to track bearing wear in real-time, facilitating predictive maintenance for fleet managers. Through its dedicated industrial network, the firm supports shipyards, pump manufacturers, and marine engineering contractors globally, maintaining a reputation built on the precise application of rubber technology to complex marine engineering problems.