1. Product Overview 40TM11N non-standard deep groove ball bearing, size 40×90×19mm for vehicle and tractor gearboxes. Dual reinforced rubber seals stop dust and oil leakage. Mark N represents outer ring snap ring groove for axial positioning. C0 standard clearance, deep groove raceway bears radial and slight axial load, quiet stable high-speed operation under shifting vibration. Made of fully quenched GCr15 steel, fully interchangeable with original 40TM11N. Quotation