Power Section Specification
475-4563
4.75" 4:5 Lobes 6.3 Stages
Rotor Specifications
Overall Length 188.00 in
Avg. Diameter 2.420 in
Contour Length 182.00 in
Eccentricity 0.246 in
Major Diameter 2.912 in
Head Diameter 2.750 in
Head Length 6.00 in
Weight 258 lb
Thread Form 2 3/8" HEF
Stator Specifications
Overall Length 207.62 in
Tube OD 4.75 in
Contour Length 180.00 in
Tube ID 3.750 in
Rubber Cut-back
Side 1: 11.00 in
Side 2: 16.62 in
Weight 425 lb
Material Alloy Steel
Performance Specifications
Flow Range 100-275 GPM
Rev per Unit Volume 0.96 Rev/Gal
Speed Range 96-264 RPM
No Load Pressure Loss 85 psi
  POB XTH PRR
Max Rec Press 1,340 psi 1,470 psi 1,340 psi
Torque @ Max Press 3,930 ft-lbs 4,320 ft-lbs 3,930 ft-lbs
Stall Pressure 2,010 psi 2,210 psi 2,010 psi
Stall Torque 5,890 ft-lbs 6,480 ft-lbs 5,890 ft-lbs
Stator Minors and Fit (in) at 70°F
  PRR POB XTH
Group Minor Fit Minor Fit Minor Fit
0 2.427 -0.007 2.427 -0.007 2.427 -0.007
7 2.460 -0.040 2.460 -0.040 2.460 -0.040
Reline Lengths (in) Max 208 Min 202 Alternate Stator OD (in): 5.000 / -
Torque
Differential Pressure (psi) 0 1,000 Torque (ft-lb) 0
Fit Increase
Change in Temperature (°F) 0 100 200 300 Fit Increase (in) 0
Speed
Differential Pressure (psi) 0 1,000 Speed (RPM) 0
Mechanical Power
Differential Pressure (psi) 0 1,000 2,000 Mechanical Power (hp) 0
Torque
Differential Pressure (psi) 0 500 1,000 1,500 Torque (ft-lb) 0 2,000 4,000 6,000
Fit Increase
Change in Temperature (°F) 0 50 100 150 200 250 300 350 Fit Increase (in) 0 0.02 0.04 0.06 0.08 0.1
Speed
100 GPM 188 GPM 275 GPM Differential Pressure (psi) 0 500 1,000 1,500 Speed (RPM) 0 100 200 300
Mechanical Power
100 GPM 188 GPM 275 GPM Differential Pressure (psi) 0 500 1,000 1,500 2,000 Mechanical Power (hp) 0 50 100 150 200 250
©2026 NOV. All rights reserved. Except as noted, all trademarks referenced in this document are trademarks of NOV. Performance curves describe theoretical performance with 175°F (79°C) water and are for reference only. Operational fit and drilling conditions will affect performance. Operation above maximum recommended limits will reduce life. Specification data are subject to change without notice.
PS App v.