Modified Stock Gearing - Boston Gear

Self-Aligning Bearings
KF Female Series
Rod Ends – Economical
F
FF
D
J
45° WITH
BALL STUD
CONE ANGLE
30° WITH
BALL ONLY
AN “L”
DESIGNATES
LEFT HAND
THREAD
AF
W
H
B
O
Outer
Member
Ball
SPECIFICATIONS
Low carbon steel stamping
plated for corrosion resistance
Low carbon steel, case
hardened plated for corrosion
resistance and wear
ALL DIMENSIONS IN INCHES
Bore
Ball
B W H AF FF D J O Dia. Thread
+.0025 Class
±.005 REF ±.060 ±.030 ±.030 REF REF REF
–.0005 UNF-2
.1900 .312 .250 .500 1.062 .750 .450 .296 .430 10-32
.2500 .375 .287 .687 1.312 .850 .515 .346 .510 1/4-28
.3125 .437 .305 .687 1.375 1.015 .590 .438 .618 5/16-24
.3750 .500 .400 .875 1.625 1.125 .725 .508 .713 3/8-24
.5000 .625 .500 1.125 2.125 1.470 1.010 .690 .931 1/2-20
LOAD DATA
Basic Ultimate Static Approx.
Bearing Load (Radial) Wt.
Number Rating (Lbs.) (Lbs.)
3 1,000 .02
4 1,900 .04
5 2,300 .07
6 3,000 .11
8 6,100 .23
Bore
ORDER BY CATALOG NUMBER OR ITEM CODE
Right Hand
Left Hand
Catalog Item Catalog Item
Number Code Number Code
.1900 KF-3 65001 KFL-3 65070
.2500 KF-4 65002 KFL-4 65140
.3125 KF-5 65041 KFL-5 65141
.3750 KF-6 65042 KFL-6 65142
.5000 KF-8 65069 KFL-8 65252
NOTES: To order with optional studs, add letters “Y” or “S” to suffix. For stud specifications, see Page 211.
For Engineering Data, see Pages 207-211.
198 Boston Gear 800-825-6544 P-1930-BG 04/10