1PC 3902-2RS 15x28x10 mm 3902 RS Double Row Sealed Angular Contact Ball Bearing

Description

1 Product Overview
General
Double row angular contact ball bearings provide the function of a pair of single row angular contact ball bearings, arranged back-to-back, but requiring less space.
Double row angular contact bearings provide very stiff, rigid bearing arrangements. They are also able to accommodate combined loads and are very suitable in supporting tilting moments.
Misalignment
Double row angular contact ball bearings must not be exposed to any misalignment.
Minimum Load
Bearings require a minimum load under all operating conditions to ensure kinematically correct rolling element function.
For double row angular contact ball bearings the minimum load must be 1% of the dynamic load rating.
2 Product pamameters
3 Product Introduction
Item Number:3902-2RS
Inner (d):15 mm
Outer (D):28 mm
Width (B):10 mm
Weight (Kg): 0.029
4 Pruduct Applications
Ultra Precision Surface Grinding Spindle, Precision Surface Grinding Spindle, Heavy-Duty Precision Boring Spindle, Six-Spindle Automatic Screw Machine, Ultra Precision Grinding Work-head, Precision Tool-room Surface Grinder Spindle, etc.
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-17-19 at 18:31:06 PST, seller added the following information: