MS27641 at a glance

Specification

Item	Value
Type	Airframe bearing, antifriction
Material	Airframe antifriction bearing
Status	Check the current issue of the standard before design use.

Dimension, in	-3	-4	-5	-6	-8	-10
B — bore (+.0000 / -.0005)	.1900	.2500	.3125	.3750	.5000	.6250
D — outside diameter (+.0000 / -.0005)	.6250	.7500	.8125	.8750	1.125	1.375
W — width of inner ring (+.000 / -.005)	.297	.281	.297	.313	.375	.406
H — width of outer ring (+.000 / -.005)	.234	.219	.234	.250	.313	.344
A — shoulder diameter, inner (approx.)	.297	.380	.415	.495	.616	.768
E — inner ring bore chamfer (+.015 / -.000)	.005	.005	.015	.015	.015	.015
C — outer ring OD chamfer (+.015 / -.000)	.016	.016	.016	.016	.016	.032
Radial limit — Radial limit load, lb	1560	1880	2190	2500	3910	6700
Thrust limit — Thrust limit load, lb	700	900	1000	1100	1700	3000
Rating, Case I — Radial load rating, lb, Case I (avg. life 10,000 complete 90° cycles)	1500	1690	1820	1920	2870	4980
Rating, Case II — Radial load rating, lb, Case II (avg. life 10,000 complete 90° cycles)	1250	1450	1600	1710	2550	4360

Dimensions in inches, loads in pounds, as tabulated; tolerances in the dimension names.

Dash numbers of the standard, each with its own link.

Part	Meaning
Format	MS27641-<dash>
Example	MS27641-3 — dash 3

Case I and Case II are the two radial load rating columns of the listing, for an average life of 10,000 complete 90° cycles.
Part numbers of the manufacturer (Mfg. P/N) are given as listed.

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MS27641 — Airframe Bearing, Antifriction, Intermediate Duty — nominal sizes and part numbers.