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|  Design. All bearings described by this specification
1.
sheet shall be angular contact instrument bearings with an
unflanged, non-separable and counterbored outer ring configuration.
Material l The ball and ring material for these bearings shall
2.
be chromium-alloy steel 52100 (UNS G52986) conforming to AMS 6444.
Tolerance class. The tolerance class shall be in accordance
3.
with the ABEC 7P tolerance tables of ANSI/AFBMA Standard 12.2. This
tolerance class shall apply to all bearing sizes listed in Table I
of this specification sheet.
4. Boundary dimensions. The boundary dimensions shall be as
specified by the dash number (DASH NO) in Table 1.
Retainer. The retainer shall be as specified by the part
5.
number designator (PN DES) in Table 11.
Closures. Closures are not available for this type of
6.
bearing . Part number designator N shall be used as shown in
Table III.
Radial internal clearance or contact angle. Radial internal
-7.
clearance or contact angle shall be as required by the part number
designator in Table IV.
Calibration. Calibration shall be as specified by the part
8.
number designator in Table V.
Performance Test. The performance test shall be as specified
9.
by the part number designator in Table V.
10.
Lubrication.
10.1. Lubricant. The lubricant shall be in accordance with the
specification indicated by the part number designator in Table VII.
10.2. Lubricant amount. The amount of lubricant shall be as
specified by the part number designator in Table VIII.
10.3. Barrier coating. Barrier coating shall be applied to bearings
as specified by the part number designator in Table VII.
,
.
I
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