Spherical Plain Bearings: Inch Series

LOAD SERIES
Standard Duty Inch
Extended Inner Race Unsealed & Sealed

LOAD SERIES STANDARD DUTY INCH EXTENDED INNER RACE UNSEALED & SEALED
Ball Bore
Diam.
B		 Part No
RFQ per item		 Outside
Diam (1)
D		 Ball
Width
W		 Race
Width
T		 Ball
Diam
BD		 Tilt
Angle (2)
 Shldr
Diam
O		 Shaft
Fillet
C1		 Hsng
Fillet
C2		 Radial
Loads (3)
Frac Nom Tol Without
Seals		 With
Seals
add:		 Nom Tol Nom Tol Nom Tol Ref Deg Ref Max Max Static Dyn
1/2 .500 -.0005 GEWZ12ES – .8750 -.0005 .750 -.010 .375 -.005 .719 9 .625 .012 .024 9337 3,152
5/8 .625 -.0005 GEWZ15ES – 1.0625 -.0005 .937 -.010 .469 -.005 .899 9 .780 .024 .039 14,732 4,865
3/4 .750 -.0005 GEWZ19ES – 1.2500 -.0005 1.125 -.010 .562 -.005 1.080 9 .920 .024 .039 20,923 7,089
7/8 .875 -.0005 GEWZ22ES – 1.4375 -.0005 1.312 -.010 .656 -.005 1.258 9 1.070 .024 .039 28,576 9,569
1 1.000 -.0005 GEWZ25ES -2RS 1.6250 -.0005 1.500 -.010 .750 -.005 1.437 9 1.220 .024 .039 37,351 12,604
1 1/4 1.250 -.0005 GEWZ31ES -2RS 2.0000 -.0005 1.875 -.010 .937 -.005 1.795 9 1.525 .039 .039 58,506 19,462
1 3/8 1.375 -.0005 GEWZ34ES -2RS 2.1875 -.0006 2.062 -.010 1.031 -.005 1.937 9 1.670 .039 .039 69,759 23,401
1 1/2 1.500 -.0005 GEWZ38ES -2RS 2.4375 -.0006 2.250 -.010 1.125 -.005 2.155 9 1.850 .039 .039 84,376 28,127
1 3/4 1.750 -.0005 GEWZ44ES -2RS 2.8125 -.0006 2.625 -.010 1.312 -.005 2.515 9 2.165 .039 .039 114,755 38,253
2 2.000 -.0005 GEWZ50ES -2RS 3.1875 -.0006 3.000 -.010 1.500 -.005 2.875 9 2.460 .039 .039 150,757 50,406
2 1/4 2.250 -.0006 GEWZ57ES -2RS 3.5625 -.0008 3.375 -.010 1.687 -.005 3.235 9 2.760 .039 .039 191,251 63,005
2 1/2 2.500 -.0006 GEWZ63ES -2RS 3.9375 -.0008 3.750 -.010 1.875 -.005 3.590 9 3.060 .039 .039 234,009 77,624
2 3/4 2.750 -.0006 GEWZ69ES -2RS 4.3750 -.0008 4.125 -.010 2.062 -.005 3.950 9 3.380 .039 .039 285,759 95,623
3 3.000 -.0006 GEWZ76ES -2RS 4.7500 -.0008 4.500 -.010 2.250 -.005 4.312 9 3.675 .039 .039 337,508 112,502
3 1/4 3.250 -.0008 GEWZ82ES -2RS 5.1250 -.0010 4.875 -.010 2.437 -.005 4.675 9 3.985 .039 .039 396,006 131,629
3 1/2 3.500 -.0008 GEWZ88ES -2RS 5.5000 -.0010 5.250 -.010 2.625 -.005 5.040 9 4.300 .039 .039 459,005 153,007
3 3/4 3.750 -.0008 GEWZ95ES -2RS 5.8750 -.0010 5.625 -.010 2.812 -.005 5.390 9 4.590 .039 .039 531,009 175,501
4 4.000 -.0008 GEWZ101ES -2RS 6.2500 -.0010 6.000 -.010 3.000 -.005 5.750 9 4.905 .059 .039 596,255 202,507
4 1/2 4.500 -.0008 GEWZ114ES -2RS 7.0000 -.0010 6.750 -.010 3.375 -.005 6.475 7 5.525 .079 .039 765,008 252,007
5 5.000 -.0010 GEWZ127ES -2RS 7.7500 -.0012 7.500 -.010 3.750 -.005 7.190 7 6.130 .079 .039 933,759 315,003
6 6.000 -.0010 GEWZ152ES -2RS 8.7500 -.0012 8.250 -.010 4.125 -.005 8.156 7 7.020 .079 .039 1,170,001 389,255
Frac Nom Tol Without
Seals		 With
Seals
add		 Nom Tol Nom Tol Nom Tol Ref Deg Ref Max Max Static Dyn
Ball Bore
Diam.
B		 Part No
RFQ per item		 Outside
Diam (1)
D		 Ball
Width
W		 Race
Width
T		 Ball
Diam
BD		 Tilt
Angle (2)
 Shldr
Diam
O		 Shaft
Fillet
C1		 Hsng
Fillet
C2		 Radial
Loads (3)
  • (1) All tolerances in this catalog are before the outer races are fractured and before application of dry film lubricant
  • (2) Seals may reduce tilt angle
  • (3) Ultimate loads for the bearings in this catalog are approximately 1.5 times the catalog load ratings
GENERAL SERIES INTERCHANGE
LOAD SERIES STANDARD DUTY INCH EXTENDED INNER RACE UNSEALED & SEALED
LOAD SERIES INCH NATIONAL R.B.C. SKF TORRINGTON INA IKO
Standard Duty
Extended Inner Race		 Unsealed GEWZ ( ) ES B ( ) -EL GEZM ( ) ES – – –
Sealed GEWZ ( ) ES-2RS B ( ) -ELSS GEZM ( ) ES-2RS – – –

• For numeric bore size conversion between manufacturers see numerical interchange table.