4PCS For Bicycle Bottom Bracket Deep Groove Ball Bearing ABEC-7 30407 2RS 30X40X7 mm Contains 12268~173110 2RS Multiple Models
Features:
Constructed from hardened GCr15 bearing steel, this ball bearing is designed for resilience and long-term durability. The primary defense against premature failure is provided by its rubber seals (RS), which guard against the ingress of destructive contaminants, making it exceptionally suitable for dirty or humid operating conditions.
**Interchangeable Component for Countless Applications**
This is a true multi-role bearing, capable of serving in fans, pumps, and various drive systems with equal effectiveness. Its standard dimensions guarantee it will fit a vast range of machinery. Precision-engineered to ABEC-7 standards with a C0 clearance, it provides a dependable combination of smooth operation and mechanical stability.
The bearing is pre-lubricated, enabling immediate deployment into service with minimal effort. The sealed-for-life design minimizes upkeep by effectively retaining its lubricant, offering a set-and-forget solution that enhances equipment reliability and reduces maintenance costs.















