Data For Compressors; Dimensions; Running Clearances; Fits - Gardner Denver ELECTRA-SCREW EBCRB Service Manual

REBUILDING DATA FOR EBC (BESB, BESC & BESD) COMPRESSORS
DIMENSIONS (Inches)
DIMENSIONS (Continued)
Center of Main Bore to Center of
Secondary Bore . . . . . . . . . . . . . . . . . . . .
Cylinder Bore Diameter
Main . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Secondary . . . . . . . . . . . . . . . . . . . . . . .
Rotor Body O.D.
Main . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Secondary . . . . . . . . . . . . . . . . . . . . . . .
Rotor Body Length . . . . . . . . . . . . . . . . .
Shaft Air Seal Diameter
Main Rotor
Suction . . . . . . . . . . . . . . . . . . . . . . . .
Discharge . . . . . . . . . . . . . . . . . . . . . .
Secondary Rotor
Suction . . . . . . . . . . . . . . . . . . . . . . . .
Discharge . . . . . . . . . . . . . . . . . . . . . .
Shaft Bearing Diameter
Main Rotor . . . . . . . . . . . . . . . . . . . . . .
Secondary Rotor . . . . . . . . . . . . . . . . .
Shaft Oil Seal Diameter . . . . . . . . . . . .
Shaft Oil Seal Clamp Sleeve Diameter. .
Length, Main Rotor Suction Face to Oil
Seal Rear Stop Shoulder . . . . . . . . . . . .
Length, Main Rotor Suction Face to Oil
Seal Clamp Sleeve Snap Ring Groove,
Far Side . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shaft Coupling Diameter . . . . . . . . . . .
Shaft Coupling Length . . . . . . . . . . . . . .
Bearing Bore Diameter
Main Rotor Side . . . . . . . . . . . . . . . . .
Secondary Rotor Side . . . . . . . . . . . .
2.250/2.252
2.933/2.936
2.705/2.708
2.927/2.926
2.700/2.699
4.393/4.391
1.1265/1.1260
1.1265/1.1260
.7510/.7505
1.0010/1.0005
1.1260/1.1255
.7510/.7505
1.001/0.999
.937/.936
2.428/2.425
3.382/3.384
.8750/.8740
2.04
2.5312/2.5322
1.7810/1.7820
Bearing Bore Depth
Main Rotor Side, Discharge End . . . . .
Second Rotor Side, Discharge End. . .
Both Sides, Suction End . . . . . . . . . .
Housing Air Seal Bore Diameter
Main Rotor Side, Discharge End.
Secondary Rotor Side, Discharge End .
Main Rotor Side, Suction End .
Secondary Rotor Side, Suction End.
Air Seal Bore Length . . . . . . . . . . . . . . .
0.70
0.60
0.60
1.130/1.131
1.005/1.006
1.135/1.140
.760/.765
0.60
RUNNING CLEARANCES (Inches)
Rotor to Cylinder — Diametral —
Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . .006/.010
Secondary . . . . . . . . . . . . . . . . . . . . . . . .005/.009
End Face to Rotor — Axial —
Suction . . . . . . . . . . . . . . . . . . . . . . . . . .
.029/.046
Discharge . . . . . . . . . . . . . . . . . . . . . . . . .001/.002
Air Seal — Diametral —
Main Rotor Side, Discharge End . . . . . .0035/.005
SecondaryRotor Side, DischargeEnd
.0040/.0055
Main Rotor Side, Suction End . . . . .0085/.0140
Secondary Rotor Side, Suction End.
.0082/.0137
FITS (Inches)
Bearing Inner Race to Shaft
.0000/.OOlOT
Bearing Outer Race to Bore .
.00I0L/.OOlOT
1-3-603 Section 10
Page 7