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Electromechanical Industrial Knowledge Base Gearhead Replacements - Replacing NE and NR series gearheads
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Gearhead Replacements - Replacing NE and NR series gearheads

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NE and NR gearheads

The NE and NR series gearheads are older legacy gearheads originally designed in the early 90s. Founded on were spur gear technology, these were low accuracy and typically used with stepper motors although low accuracy applications with servos were also possible.

The NE was an inline spur gearhead. The new PV series gearhead is an inline planetary gearhead using straight-cut gears that provide higher torque, better accuracy, and longer life.

The NR was a right-angle spur gearhead. The new RX series gearhead is a right-angle planetary gearhead using helical gear technology that also provides higher torque, better accuracy, and longer life.

Both the PV series and RX series offer similar output face dimensions (shaft diameter and length, pilot diameter and depth, bolt circle and bolt hole) as a bolt on replacement.

The NE and NR series gearhead output direction depended upon the ratio of the gearhead whereas the PV and RX series directions are all the same regardless of the ratio. Reference the chart at the following link for more information on shaft rotation directions: Shaft Rotation

Or, use this spreadsheet to select the gearhead model, frame and ratio to lookup the replacement. 

The mounting kit is a separate section. Select the old mounting kit part number to find the mounting kit for the new gearhead.

Legacy-GH-Crossref.xlsx

Reference the following link for a crossover from common standard NE/NR models to the PV/RX models:

Part Number

Rotation direction vs replacement

Replacement Part Number Comments
CG-NE23-010-50289 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NE23-010-51223 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NE23-015-50676 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NE23-030-51271 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NE23-050-50237 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NE23-050-50916 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NE23-080-50409 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NE42-003-50878 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NE42-005-51220 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NE42-020-800209 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NR23-100-800176 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NR23S-020-50561 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NR23SC-001-50750 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NR23SC-001-50801 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NR23SC-001-50857 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NR34D-003-51166 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NR34DC-001-50856 TBD Email pumptechsupport@parker.com Custom gearhead
CG-NR42DC-001-50773 TBD Email pumptechsupport@parker.com Custom gearhead
NE23-003 Same rotation as PV PV23FE-003
NE23-003-058-LB TBD Email pumptechsupport@parker.com Custom gearhead
NE23-003-LB Same rotation as PV PV23FE-003
NE23-005 Opposite rotation as PV PV23FE-005
NE23-005-LB Opposite rotation as PV PV23FE-005
NE23-008 TBD TBD
NE23-008-LB TBD TBD
NE23-010 Same rotation as PV PV23FE-010
NE23-010-023-LB TBD Email pumptechsupport@parker.com Custom gearhead
NE23-010-LB Same rotation as PV PV23FE-010
NE23-015 Same rotation as PV PV23FE-015
NE23-015-LB Same rotation as PV PV23FE-015
NE23-020 Opposite rotation as PV PV23FE-020
NE23-020-010LB TBD Email pumptechsupport@parker.com Custom gearhead
NE23-020-LB Opposite rotation as PV PV23FE-020
NE23-030 Opposite rotation as PV PV23FE-030
NE23-030-063-LB TBD Email pumptechsupport@parker.com Custom gearhead
NE23-030-106 TBD Email pumptechsupport@parker.com Custom gearhead
NE23-030-LB Opposite rotation as PV PV23FE-030
NE23-050 Same rotation as PV PV23FE-050
NE23-050-020 TBD Email pumptechsupport@parker.com Custom gearhead
NE23-050-057-LB TBD Email pumptechsupport@parker.com Custom gearhead
NE23-050-079-LB TBD Email pumptechsupport@parker.com Custom gearhead
NE23-050-LB Same rotation as PV PV23FE-050
NE23-100 Opposite rotation as PV PV23FE-100
NE23-100-074 TBD Email pumptechsupport@parker.com Custom gearhead
NE23-100-LB Opposite rotation as PV PV23FE-100
NE23-100-V01LB TBD Email pumptechsupport@parker.com Custom gearhead
NE34-003 Same rotation as PV PV34FE-003
NE34-003-036 TBD Email pumptechsupport@parker.com Custom gearhead
NE34-003-042 TBD Email pumptechsupport@parker.com Custom gearhead
NE34-003-LB Same rotation as PV PV34FE-003
NE34-005 Opposite rotation as PV PV34FE-005
NE34-005-042 TBD Email pumptechsupport@parker.com Custom gearhead
NE34-005-066 TBD Email pumptechsupport@parker.com Custom gearhead
NE34-005-071 TBD Email pumptechsupport@parker.com Custom gearhead
NE34-005-074 TBD Email pumptechsupport@parker.com Custom gearhead
NE34-005-LB Opposite rotation as PV PV34FE-005
NE34-008 TBD TBD
NE34-008-LB TBD TBD
NE34-010 Same rotation as PV PV34FE-010
NE34-010-LB Same rotation as PV PV34FE-010
NE34-010-V01 TBD Email pumptechsupport@parker.com Custom gearhead
NE34-015 Same rotation as PV PV34FE-015
NE34-015-061-LB TBD Email pumptechsupport@parker.com Custom gearhead
NE34-015-LB Same rotation as PV PV34FE-015
NE34-020 Opposite rotation as PV PV34FE-020
NE34-020-062 TBD Email pumptechsupport@parker.com Custom gearhead
NE34-020-LB Opposite rotation as PV PV34FE-020
NE34-030 TBD TBD
NE34-050 Same rotation as PV PV34FE-050
NE34-050-LB Same rotation as PV PV34FE-050
NE34-100 Opposite rotation as PV PV34FE-100
NE34-100-LB Opposite rotation as PV PV34FE-100
NE42-003 Same rotation as PV PV42FE-003
NE42-003-029-LB TBD Email pumptechsupport@parker.com Custom gearhead
NE42-003-031 TBD Email pumptechsupport@parker.com Custom gearhead
NE42-005 Opposite rotation as PV PV42FE-005
NE42-010 Same rotation as PV PV42FE-010
NE42-010-LB Same rotation as PV PV42FE-010
NE42-015 Same rotation as PV PV42FE-015
NE42-015-LB Same rotation as PV PV42FE-015
NE42-020 Opposite rotation as PV PV42FE-020
NE42-020-LB Opposite rotation as PV PV42FE-020
NE42-050 Same rotation as PV PV42FE-050
NE42-100 Opposite rotation as PV PV42FE-100
NE42-100-LB Opposite rotation as PV PV42FE-100
NE42R-005 TBD Email pumptechsupport@parker.com Custom gearhead
NR23D-008-LB TBD TBD
NR23D-010 TBD TBD
NR23D-020 TBD TBD
NR23D-020-LB TBD TBD
NR23D-030-LB TBD TBD
NR23D-050 TBD TBD
NR23D-050-LB TBD TBD
NR23DC-001 TBD TBD
NR23E-100 TBD TBD
NR23EC-001-004 TBD Email pumptechsupport@parker.com Custom gearhead
NR23S-003 TBD TBD
NR23S-003-LB TBD TBD
NR23S-005 Same rotation as RX RX23-005-L2
NR23S-005-LB Same rotation as RX RX23-005-L2
NR23S-008 TBD TBD
NR23S-008-LB TBD TBD
NR23S-010 Same rotation as RX RX23-010-L2
NR23S-010-030 TBD Email pumptechsupport@parker.com Custom gearhead
NR23S-010-031 TBD Email pumptechsupport@parker.com Custom gearhead
NR23S-010-032 TBD Email pumptechsupport@parker.com Custom gearhead
NR23S-010-038 TBD Email pumptechsupport@parker.com Custom gearhead
NR23S-010-LB Same rotation as RX RX23-010-L2
NR23S-015 Opposite rotation as RX RX23-015-L2
NR23S-015-LB Opposite rotation as RX RX23-015-L2
NR23S-020 Opposite rotation as RX RX23-020-L2
NR23S-020-LB Opposite rotation as RX RX23-020-L2
NR23S-030 TBD TBD
NR23S-030-LB TBD TBD
NR23S-050 Same rotation as RX RX23-050-L2
NR23S-050-026 TBD Email pumptechsupport@parker.com Custom gearhead
NR23S-050-LB Same rotation as RX RX23-050-L2
NR23S-100 Same rotation as RX RX23-100-L2
NR23S-100-LB Same rotation as RX RX23-100-L2
NR23SC-001 TBD TBD
NR23SC-001-004 TBD Email pumptechsupport@parker.com Custom gearhead
NR23SC-001-LB TBD TBD
NR34D-003 TBD RD90-003
NR34D-005 TBD TBD
NR34D-010 TBD RD90-009 Face dimensions do not match.
NR34D-015-LB TBD RD90-015 Face dimensions do not match.
NR34D-030-LB TBD RD90-030 Face dimensions do not match.
NR34E-003 TBD RD90-003 Face dimensions do not match.
NR34E-050 TBD RD90-030 Face dimensions do not match.
NR34S-003 TBD RB90-003 Face dimensions do not match.
NR34S-003-009 TBD Email pumptechsupport@parker.com Custom gearhead
NR34S-003-LB TBD RB90-003 Face dimensions do not match.
NR34S-005 Same rotation as RX RX34-005-L2
NR34S-005-LB Same rotation as RX RX34-005-L2
NR34S-010 Same rotation as RX RX34-010-L2
NR34S-010-LB Same rotation as RX RX34-010-L2
NR34S-015 Opposite rotation as RX RX34-015-L2
NR34S-020 Opposite rotation as RX RX34-020-L2
NR34S-030 TBD TBD
NR34S-050 Same rotation as RX RX34-050-L2
NR34S-100 Same rotation as RX RX34-100-L2
NR34S-100-LB Same rotation as RX RX34-100-L2
NR34SC-001 TBD RB90-001
NR34SC-001-008 TBD Email pumptechsupport@parker.com Custom gearhead
NR34SC-001-009-V01 TBD Email pumptechsupport@parker.com Custom gearhead
NR42D-003 TBD RD115-003
NR42D-005-010 TBD Email pumptechsupport@parker.com Custom gearhead
NR42D-010 TBD TBD
NR42S-003 TBD RB115-003
NR42S-005-LB Same rotation as RX RX42-005-L2
NR42S-010 Same rotation as RX RX42-010-L2
NR42S-030 TBD TBD
NR42S-050 Same rotation as RX RX42-050-L2
NR42S-050-015 TBD TBD
NR42S-100 Same rotation as RX RX42-100-L2
NR42S-100-LB Same rotation as RX RX42-100-L2
NR42SC-001-LB TBD Email pumptechsupport@parker.com Custom gearhead

Mounting Kits

The NE and NR gearheads mounting kits were a pinion only if a true Nema dimension motor (MM23-000, MM34-000, MM34-016 or MM42-000). All other mounting kits for other dimension motors included an adapter flange.  The pinion was tightened onto the motor shaft at a specific distance, to engage the first gear cluster within the gearhead.

The PV series Planetary Value line uses the MV mounting kits. The MV and MU mounting kits are similar in design.

The RX series Stealth Gen II use the MU mounting kits.  The RX uses universal mounting kits that are only an adapter flange and bushing. This allows the gearhead to be entirely built and the mounting kits use standard adapter flanges that are modified for the motor dimensions.

To find the appropriate mounting kit, use the motor manufacturer and model number with the web-base mounting kit search tool: Gearhead Mounting Kit Search Tool

Or if you have the MM mounting kit number, here's a crossover list:

MM_Replacements.pdf

Optional features

The NR series were typically purchased with single output shaft. The NR also had dual output shaft and encoder shaft options. These are standard options on the MultiDrive series gearhead but that is a metric dimension gearhead and starts in a 90mm size. This is quite different; we recommend a redesign to incorporate a newer gearhead.

Note the 3:1 for the NR series right-angle gearheads isn't a standard option on the RX series. The RX series has ratios starting at 5:1 going up to 100:1. The RB series MultiDrive gearhead is offered in a 3:1 ratio but is a metric dimension gearhead:

Stealth Gearhead "Right Angle" MultiDrive

For full specifications, see PV and RX series gearhead product pages.

Models affected:

NE23 NE34 NE42

NR23 NR34 NR42

 

8/23/17jh

12/13/18jj

8/621jh updated email

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