FKS / FKST Heavy Duty Precision Series Spherical Bushings On Emerson Bearing

Ideal for construction and material handling industries, both the 52100 steel ball and alloy steel races in the FKS/FKST series are heat treated for additional wear resistance. The ball is chrome plated for increased hardness, wear, and corrosion resistance, as well as decreased coefficient of friction.

PTFE liners are also available for additional lubrication.

Available Dimensions:

Diameter (B): 0.19 in. to 1 in.

Outer Diameter (D): 0.5625 in. to 1.75 in.

Overall Width (W): 0.281 in. to 1 in.

Width (T): 0.218 in. to 0.797 in.

Diameter (O): 0.293 in. to 1.118 in.

Ball Diameter: 0.406 in. to 1.5 in.

Chamfer (F): 0.015 in. to 0.044 in.

a° Mis. Angle: 8 to 13.5

Ult. Static Radial Load: 5,400 lb to 104,000 lb

Approximate Weight: 0.014 lb to 0.386 lb

Item #	(B) Diameter	(D) Outer Diameter	(W) Overall Width	(T) Width	(O) Diameter	Ball Diameter	(F) Chamfer	a° Mis. Angle	Ult. Static Radial Load	Approx. Weight
FKS3	N/A .1900 in	N/A .5625 in	N/A 0.281 in	N/A 0.218 in	N/A .293 in	N/A .406 in	N/A .015 in	N/A 11	N/A 5,400 lb	N/A .014 lb
FKS4	N/A .2500 in	N/A .6562 in	N/A 0.343 in	N/A 0.250 in	N/A .364 in	N/A .500 in	N/A .022 in	N/A 13.5	N/A 8,400 lb	N/A .022 lb
FKS5	N/A .3125 in	N/A .7500 in	N/A 0.375 in	N/A 0.281 in	N/A .419 in	N/A .562 in	N/A .032 in	N/A 12	N/A 11,600 lb	N/A .065 lb
FKS6	N/A .3750 in	N/A .8125 in	N/A 0.406 in	N/A 0.312 in	N/A .516 in	N/A .656 in	N/A .032 in	N/A 10	N/A 15,600 lb	N/A .038 lb
FKS7	N/A .4375 in	N/A .9062 in	N/A 0.437 in	N/A 0.343 in	N/A .530 in	N/A .687 in	N/A .032 in	N/A 8	N/A 22,300 lb	N/A .047 lb
FKS8	N/A .5000 in	N/A 1.0000 in	N/A 0.500 in	N/A 0.390 in	N/A .600 in	N/A .781 in	N/A .032 in	N/A 9.5	N/A 26,900 lb	N/A .065 lb
FKS9	N/A .5625 in	N/A 1.0937 in	N/A 0.562 in	N/A 0.437 in	N/A .671 in	N/A .875 in	N/A .032 in	N/A 9.5	N/A 36,000 lb	N/A .086 lb
FKS10	N/A .6250 in	N/A 1.1875 in	N/A 0.625 in	N/A 0.5000 in	N/A .739 in	N/A .968 in	N/A .032 in	N/A 8.5	N/A 40,000 lb	N/A .110 lb
FKS12	N/A .7500 in	N/A 1.4375 in	N/A 0.750 in	N/A 0.593 in	N/A .920 in	N/A 1.187 in	N/A .044 in	N/A 9	N/A 78,000 lb	N/A .204 lb
FKS14	N/A .8750 in	N/A 1.5625 in	N/A 0.875 in	N/A 0.703 in	N/A .980 in	N/A 1.312 in	N/A .044 in	N/A 9.5	N/A 86,000 lb	N/A .263 lb
FKS16	N/A 1.0000 in	N/A 1.7500 in	N/A 1.000 in	N/A 0.797 in	N/A 1.118 in	N/A 1.500 in	N/A .044 in	N/A 10	N/A 104,000 lb	N/A .386 lb

Item #

(B) Diameter

(D) Outer Diameter

(W) Overall Width

(T) Width

(O) Diameter

Ball Diameter

(F) Chamfer

a° Mis. Angle

Ult. Static Radial Load

Approx. Weight

FKS3

N/A .1900 in

N/A .5625 in

N/A 0.281 in

N/A 0.218 in

N/A .293 in

N/A .406 in

N/A .015 in

N/A 11

N/A 5,400 lb

N/A .014 lb

FKS4

N/A .2500 in

N/A .6562 in

N/A 0.343 in

N/A 0.250 in

N/A .364 in

N/A .500 in

N/A .022 in

N/A 13.5

N/A 8,400 lb

N/A .022 lb

FKS5

N/A .3125 in

N/A .7500 in

N/A 0.375 in

N/A 0.281 in

N/A .419 in

N/A .562 in

N/A .032 in

N/A 12

N/A 11,600 lb

N/A .065 lb

FKS6

N/A .3750 in

N/A .8125 in

N/A 0.406 in

N/A 0.312 in

N/A .516 in

N/A .656 in

N/A .032 in

N/A 10

N/A 15,600 lb

N/A .038 lb

FKS7

N/A .4375 in

N/A .9062 in

N/A 0.437 in

N/A 0.343 in

N/A .530 in

N/A .687 in

N/A .032 in

N/A 8

N/A 22,300 lb

N/A .047 lb

FKS8

N/A .5000 in

N/A 1.0000 in

N/A 0.500 in

N/A 0.390 in

N/A .600 in

N/A .781 in

N/A .032 in

N/A 9.5

N/A 26,900 lb

N/A .065 lb

FKS9

N/A .5625 in

N/A 1.0937 in

N/A 0.562 in

N/A 0.437 in

N/A .671 in

N/A .875 in

N/A .032 in

N/A 9.5

N/A 36,000 lb

N/A .086 lb

FKS10

N/A .6250 in

N/A 1.1875 in

N/A 0.625 in

N/A 0.5000 in

N/A .739 in

N/A .968 in

N/A .032 in

N/A 8.5

N/A 40,000 lb

N/A .110 lb

FKS12

N/A .7500 in

N/A 1.4375 in

N/A 0.750 in

N/A 0.593 in

N/A .920 in

N/A 1.187 in

N/A .044 in

N/A 9

N/A 78,000 lb

N/A .204 lb

FKS14

N/A .8750 in

N/A 1.5625 in

N/A 0.875 in

N/A 0.703 in

N/A .980 in

N/A 1.312 in

N/A .044 in

N/A 9.5

N/A 86,000 lb

N/A .263 lb

FKS16

N/A 1.0000 in

N/A 1.7500 in

N/A 1.000 in

N/A 0.797 in

N/A 1.118 in

N/A 1.500 in

N/A .044 in

N/A 10

N/A 104,000 lb

N/A .386 lb