INCH-POUND MS27647F
20 January 1998
SUPERSEDING MS27647E
21 June 1995
MILITARY SPECIFICATION SHEET
BEARING, BALL, AIRFRAME, ANTI-FRICTION, EXTRA WIDE, DOUBLE ROW, INTERMEDIATE DUTY
This Specification is approved for use by all Departments and
Agencies of the Department of Defense.
The requirements for acquiring the product described herein shall consist of this specification sheet and the issue of the following specification listed in that issue of the Department of Index of Specifications and Standards (DODISS) specified in the solicitation: MIL-B-7949.
TABLE I. DIMENSIONS AND LOADS
MS DASH NO. |
Ø B |
Ø D |
W |
H |
Ø A |
E |
C |
RADIAL LIMIT LOAD RATING LBS |
THRUST LIMIT LOAD RATING LBS |
5/ 6/ RADIAL LOAD RATING (LBS) FOR AVERAGE LIFE OF 10,000 COMPLETE 90° CYCLES |
APPROXIMATE WEIGHT (LBS) |
MAXIMUM STARTING TOQUE (INCH-0Z) |
|
2/ BORE +.0000 -.0005 |
OUTSIDE DIAMETER 2/ 1/ +.0000 -.0005 |
WIDTH INNER RING 1/ +.000 -.005 |
WIDTH OUTER RING 1/ +.000 -.005 |
SHOULDER DIAMETER INNER RING (APPROX) |
4/ INNER RING CORNER CHAMFER +.015 -.000 |
3/ OUTER RING CORNER CHAMFER +.015 -.000 |
|||||||
CASE I |
CASE II |
||||||||||||
-4A |
.2500 |
.6250 |
.562 |
.500 |
.338 |
.005 |
.016 |
1400 |
500 |
1050 |
960 |
.025 |
1 |
-4 |
.2500 |
.7500 |
.875 |
.750 |
.372 |
2700 |
900 |
2070 |
1850 |
.04 |
1 |
||
-5 |
.3125 |
.8750 |
.938 |
.813 |
.466 |
5140 |
1600 |
2600 |
2320 |
.07 |
1 |
||
-6 |
.3750 |
1.0625 |
1.188 |
1.063 |
.570 |
8440 |
2600 |
4220 |
3740 |
.12 |
2 |
||
-8 |
.5000 |
1.4375 |
1.500 |
1.3750 |
.709 |
.032 |
15520 |
4700 |
7610 |
6520 |
.29 |
2 |
|
11 Dimensions to be met after plating.
21 Out-of-round tolerances: Bore: +.0002, -.0007;
outer diameter: +.0005, -.0010.
31 A radius giving approximately the same grip for staking the bearing in the housing is acceptable in lieu of a 45 flat surface chamfer.
41 A radius giving approximately the same fillet clearance is acceptable in lieu of a 45 flat surface chamfer.
51 Case I = Load is fixed with respect to the outer ring.
Case II = Load is fixed with respect to the inner ring.
61 These ratings are for operation up to 250 F. For operation up to 350 F.
The ratings are shall be reduced by 20%.
AMSC N1A 1 of 3 FSC 3110
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
For Parts Inquires submit RFQ to Parts Hangar, Inc.
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