Koyo DG2550B-32RR1D Timing Belt Idler Bearing

The Koyo DG2550B-32RR1D is a precision-engineered timing belt idler bearing designed for reliable performance in automotive timing belt systems. Manufactured by Koyo Seiko Co., Ltd. (JTEKT Corporation), this OEM-quality component delivers the same high-quality craftsmanship and materials as original equipment.

Key Features:

• Inner diameter: 12mm, outer diameter: 50mm, width: 42mm
• Sealed deep groove ball bearing design for protection against contaminants
• High-temperature and high-speed rotation capable materials
• Enhanced seal and grease formulation for improved reliability
• Resistant to muddy water and dust penetration in severe driving conditions
• Precision-manufactured to OEM specifications

This idler bearing is a critical component in the engine timing mechanism. Koyo recommends replacement around 5 years or 100,000 km when servicing the timing belt. The sealed bearing construction provides long-lasting performance and helps maintain proper belt tension throughout its service life.