10pcs 4*7*1.6 mm Bearing SMR74 Open Bearing Special Size Dental Handpiece bearing SMR74 440C stainless steel bearings MR74 4x7x1.6

Technical specifications

Item: SMR74W1.6
Structure: Deep Groove
Material: 440C Stainless Steel ( prefix "S" )
Bore Dia (d): 4 mm
Outer Dia (D): 7 mm
Width (B): 1.6mm
Closures: Metal Seals
Lubrication: Grease
Magnetic: little
Hardness: 58HRC
Corrosion Resistance: General
Clearance: C0
Grades: ABEC-7