Roper® 70400 Series Pump Parts
Crowned gear-joint progressive cavity pump replacement parts
The Roper® 70400 family uses a sealed crowned gear-joint drive system for demanding progressive cavity pump service. ACCA Pumps supports replacement pumping elements and documented gear-joint service components for applicable 70400 configurations.
Roper® 70400 Gear-Joint Engineering Overview
Unlike the 70200 and 70300 pin-joint families, the 70400 uses a crowned gear joint. Roper® describes the joint as sealed from the pumped liquid, with greater wear area and lower stresses for applications where joint life, maintenance interval and uptime are critical.
Crowned Gear Joint
Hub gears and ring gears transmit torque through a sealed gear-joint assembly rather than the conventional pin-joint arrangement.
SWG Replacement Coverage
Roper®’s current parts book contains dedicated SWG10 and SWG12 drive-end cross-reference sections, including SWG8, SWG10, SWG10H, SWG12 and SWG12H references.
Heavy-Duty Service
The 70400 configuration is intended for demanding torque, viscosity, pressure and abrasive-service applications where longer maintenance intervals are valuable.
Roper® 70400 Models & SWG Cross-References
The model selector below follows explicit 7X4xx and SWG references found in Roper®’s 2026 progressive-cavity parts documentation. Select a model to view its replacement-parts page and identification guidance.
70412
SWG8 cross-reference
Roper® documents 7X412 in the SWG10 drive-end block and cross-references it to SWG8.
View 70412 parts →70416
SWG10 cross-reference
Roper® explicitly cross-references XSWG10 to 7X416 in the 2026 parts book.
View 70416 parts →70419
Gear-joint 19-size
Roper® documents 7X419 service components in the 412/19/28 gear-joint drive-end group.
View 70419 parts →70428
SWG10H cross-reference
Roper® explicitly cross-references XSWG10H to 7X428.
View 70428 parts →70444
SWG12 cross-reference
Roper® explicitly cross-references XSWG12 to 7X444.
View 70444 parts →70465
SWG12H cross-reference
Roper® explicitly cross-references XSWG12H to 7X465.
View 70465 parts →70400 Gear-Joint Components Available
Rotors & Stators
Stage-specific pumping elements in documented materials and elastomer constructions.
Hub & Ring Gears
Documented D109 hub gears and D110 ring gears for applicable 70400 gear-joint configurations.
Connecting Rod Assemblies
Connecting rods, rings, seals and related hardware used in the sealed gear-joint drive train.
Stub & Drive Shafts
Documented shaft components for applicable 70400/SWG replacement configurations.
Thrust Components
Front and rear thrust plates, bearing components, coverplates and seals.
Housings & Support Parts
Coupling housings, inlet bodies, adapter flanges, stator supports and service hardware.
Documented SWG Drive-End Groups
| Roper® Documentation Group | Cross-Referenced Models | Key Gear-Joint Parts |
|---|---|---|
| SWG10 Drive End | 7X412 / SWG8; 7X416 / SWG10; 7X428 / SWG10H | D109-1 hub gear, D110-1 ring gear, D107-1 coupling housing, D111-1/-2 thrust plates |
| SWG12 Drive End | 7X444 / SWG12; 7X465 / SWG12H | D109-2 hub gear, D110-2 ring gear, D107-2 coupling housing, D111-3/-4 thrust plates |
Before You Order Roper® 70400 Parts
Identify both the pumping element and gear-joint drive end
Provide the complete Roper® figure number, serial number, existing part number, stage count, material construction and stator elastomer. Gear-joint service components must be matched to the correct drive-end group; do not select them from displacement alone.
Progressive Cavity Engineering Note — Joint & Drive Reliability
The drive train must transmit torque while accommodating the eccentric motion of the rotor. Joint condition, lubrication, alignment and bearing support are therefore important to reliable PCP operation, especially as torque and differential pressure increase.
Frequently Asked Questions
How is the Roper® 70400 different from the 70200 and 70300?
The 70200 and 70300 are pin-joint configurations. The 70400 uses a crowned gear-joint drive system sealed from the pumped liquid.
Does Roper® document SWG replacement parts?
Yes. Roper®’s 2026 parts book contains dedicated SWG10 and SWG12 drive-end sections with explicit 7X4xx cross-references and gear-joint service part numbers.
What components are unique to the gear-joint design?
Documented gear-joint components include hub gears, ring gears, coupling housings, connecting-rod assemblies, stub shafts and thrust plates in addition to bearings, seals, packing, rotors and stators.
What information should I send ACCA for identification?
Send the complete pump figure, serial number, existing component number, construction and photographs when available.
Need Roper® 70400 Gear-Joint Parts?
Send the complete Roper® figure number and the parts you need. ACCA can help identify the correct gear-joint and pumping-element components.