[1604RS A1 10PCS]

Model: 1602rs
Metric :
Internal (d): 0.25 inches (6.35 mm).
Outer (d): 17.462 mm
Width (B): 7.938 mm
Inches:
Inside (d): 1/4 = 0.25"
Outer (d): 11/16 = 0.6875"
Width(b):5/16 = 0.3125inch
Grade: ABEC-1
Material: 52100 Chrome Steel
Sticker: Seal.
Quantity: 1 lot=10pcs
Model: 1604rs
Metric :
Internal (d): 0.37 inches (9.525 mm).
Outer (d): 22.225 mm
Width (B): 8.731 mm
Inches:
Inside (d):3/8 = 0.375inch
Outer (d): 7/8 = 0.875"
Width(b):11/32 = 0.3437inch
Grade: ABEC-1
Material: 52100 Chrome Steel
Sticker: Seal.
Quantity: 1 lot=10pcs
Model: 1605rs
Metric :
Internal (d): 0.3 inches (7.938 mm)
Outer (d): 23.019 mm
Width (B): 7.938 mm
Inches:
Inside (d):5/16 = 0.3125inch
Exterior(d):29/32 = 0.9063inch
Width(b):5/16 = 0.3125inch
Grade: ABEC-1
Material: 52100 Chrome Steel
Sticker: Seal.
Quantity: 1 lot=10pcs
Miniature Bearing Types and Functions
Miniatures and instrument ball bearings can be divided into two basic types of deep grooves and angle contact into the first deep grooves) and can be categorized "open", "shield", or "sealed" depending on the presence and type of seal Deep groove ball bearings have two unique advantages.
They can maintain a certain axial load in either direction, as well as radial loads, and the two raceways cross section is a simple circular arc. The bearings have low friction and very low noise and vibration, so they are finished accurately. Several different cage designs have different characteristics, and the selection depends on individual applications.