Roma Machine Tool & Die, Inc.

Control Bearings - Bellcrank

  • All Bearings are 100% traceable, Cert's available
  • Inspected per Mil. I 45208A
  • Manufactured for both the Experimental and Certified aircraft industry.
  • Prepacked with lubricant conforming to Mil. -G23827
BC4W10 (our part #68-0303)
 Flange thickness  .100
 Flange O.D.  1.625
 Hub diameter  .870
 Hole diameter  .250
 O.A.L.  .625/.630
 Hole Pattern  1.312 BC w/12 holes
 Hole Dia.  .128

Operating temperature range -30 Deg. F to +250 Deg. F

BC5W11 .312 5/16 I.D.
 Flange thickness  .100
 Flange O.D.  1.625
 Hub diameter  .870
 Hole diameter  .3125
 O.A.L.  .625/.630
 Hole Pattern  1.375 BC w/12 holes
 Hole Dia.  .128

Operating temperature range -30 Deg. F to +250 Deg. F

BCP4W10/A (Our Part #96-0624)
MS20218-1
 Flange thickness  .100
 Flange O.D.  1.625
 Hub diameter .750
 Hub length  .500
 Hole diameter  .250
 O.A.L.  .625 +.005 / -.005
 Hole Pattern  1.312 BC w/12 holes
 Hole Dia.  .128
 Radial Load (endurance) 500 lbs.
 Axial Static Capacity  700 lbs.
 Radial Static Capacity  2770 lbs.
 Limit Moment Rating Inch-lbs min.  414
 Weight lbs max.  .06

Operating temperature range -60 Deg. F to +300 Deg. F
Currently being installed on certified aircraft, new and rebuilt!
Bearings are manufactured from 52-100 bearing steel.
Bellcrank housing manufactured from 2024 T3QQ A 225/3 ASTM B211
Aluminum billet manufactured in USA.
BCP4W10 (S) = Steel (Our Part #96-0626)
MS20218-1
 Flange thickness  .062 +.005 / -.005
 Flange O.D.  1.625
 Hub diameter .750
 Hub length  .500
 Hole diameter  .250
 O.A.L.  .625 +.005 / -.005
 Hole Pattern  1.312 BC w/12 holes
 Hole Dia.  .145

Cad plated per Mil. Std. QQ P 416 Type 1 Class 2 Thickness .0005 Max.
Material: Rings Mil. S 7420, Balls Mil. B 1083

 Radial Load (endurance) 500 lbs.
 Axial Static Capacity  700 lbs.
 Radial Static Capacity  2770 lbs.
 Limit Moment Rating Inch-lbs min.  414
 Weight lbs max.  .06

Operating temperature range -60 Deg. F to +300 Deg. F
Currently being installed on certified aircraft, new and rebuilt!

Roma Machine Tool & Die, Inc.
1990 East Maple Street
Kankakee, IL 60901-5720 USA
Cell Phone: 815-325-8894

E-mail: romamach@aol.com