1. Product Overview 7004-B-2RS is standard single row angular contact ball bearing. B : 40° contact angle, superior axial load carrying capacity 2RS : Double-sided contact NBR rubber seals, effective against dust and water splash It bears combined radial load and one-way axial load. Single bearing can be arranged back-to-back, face-to-face or tandem paired to withstand bidirectional axial force. Sealed structure retains factory pre-filled grease for long maintenance-free