10Pcs - R2-5ZZ (1/8"x5/16"x9/64") Inch R2-5 Ball Bearings 3.175x7.938x3.571mm

Description

Miniature Bearing Types & Features
Miniature and instrument ball bearings can be divided into two basic types, deep groove and angular contact. The first (deep groove) can also be classified as "Open", "Shielded", or "Sealed" depending on the existence and type of seal or shield. Deep groove ball bearings have two inherent advantages; they can sustain some axial load in either direction as well as radial loads, and the two raceway cross-sections are simple circular arcs which can be very precisely finished so the bearings have low friction and very little noise or vibration. Several different cage designs are available with different characteristics and the choice depends upon the individual application.
TECHNICAL SPECS
Model: R2-5ZZ Metric: Inner (d): 3.175 mm Outer (D): 7.938 mm Width (B): 3.571 mm Inch: Inner (d): 1/8 = 0.125 inch Outer (D): 5/16 = 0.3125 inch Width (B): 9/64 = 0.1406 inch Grade: ABEC-5 Material: 52100 Chrome Steel Seal: Shield Qty: 1 Lot = 10 PCS
DIMENSIONS LIST
F A Q
1.WHY DO THE BEARINGS I RECEIVE HAVE SHAKING?
The clearance of the bearing is related to the play. The default is the standard C0 clearance, which is usually 3-18um. The corresponding principle is shown in the figure below. If you don't need to shake, please choose C2 small clearance bearing, If you have any questions, please contact us before purchasing.
2.WHAT IS THE ACCURACY OF ABEC-1
ABEC is the American ANSI standard. The corresponding German DIN standard and international ISO standard are as follows:
3.DO YOU PROVIDE LOGISTICS TRACKING INFORMATION?
Yes, all our products provide full logistics tracking, And the products you buy are all new. We will buy transportation insurance for you. If the product is damaged or lost during transportation, you can get paid.
On Dec-10-19 at 16:27:08 PST, seller added the following information: