For standard Nema23 dimension motor, the MM23-000 is a pinion only mounting kit (no adapter flange) that can be used. This is ordered as a second line-item to the gearhead and is supplied at no charge with the purchase of the gearbox.
If needing to order as a spare/replacement, use part number: MM23-000-MKO (Mounting Kit Only). This is the same item but for orders without a gearhead. The pinion is the same for either the inline or right-angle.
The MM23-000 fits a motor with these dimensions:
SHAFT DIAMETER: 0.25-in
SHAFT LENTH: 0.81-in
PILOT DIAMETER: 1.50-in
BOLT HOLE: 0.195-in
BOLT CIRCLE: 2.625-in
COMMENTS: Standard NEMA 23 Motor, NO ADAPTOR NEEDED
The pinion should be located .435-in from the motor face and tighten:
MM23-000.pdf
For the NE34 or NR34, for standard Nema34 dimension motor, the MM34-000 and MM34-016 are pinion only mounting kits (no adapter flange) that can be used. This is ordered as a second line-item to the gearhead and is supplied at no charge with the purchase of the gearbox.
For MM34-000, if needing to order as a spare/replacement, use part number: MM34-000-NE-MKO (NE34 inline, Mounting Kit Only), or MM34-000-NR-MKO (NR34 right angle, Mounting Kit Only). This is the same item but for orders without a gearhead. The pinion is different for the inline NE34 vs the right-angle NR34.
For MM34-016, if needing to order as a spare/replacement, use part number: MM34-016-NE-MKO (NE34 inline, Mounting Kit Only), or MM34-016-NR-MKO (NR34 right angle, Mounting Kit Only). This is the same item but for orders without a gearhead. The pinion is different for the inline NE34 vs the right-angle NR34.
MM34-000 is for a Nema34 dimension motor with 0.375-inch motor shaft diameter:
PN: MM34-000
SHAFT DIAMETER: 0.375-in
SHAFT LENTH: 1.25-in
PILOT DIAMETER: 2.875-in
BOLT HOLE: 0.218-in THRU
BOLT CIRCLE: 3.875-in
COMMENTS: STD (3/8) NEMA 34 MOTOR, NO ADAPTOR NEEDED
The pinion should be located .825-in from the motor face and tighten (no drawing).
MM34-016 is for a Nema34 dimensions motor with 0.50-inch motor shaft diameter:
PN: MM34-016
SHAFT DIAMETER: 0.50-in
SHAFT LENTH: 1.25-in
PILOT DIAMETER: 2.875-in
BOLT HOLE: 0.218-in THRU
BOLT CIRCLE: 3.875-in
COMMENTS: STD (1/2) NEMA 34 MOTOR, NO ADAPTOR NEEDED
The pinion should be located .862-in from the motor face and tighten:
MM34-016.pdf
MM42-000 is for a 5/8" motor shaft diameter:
PN: MM42-000
SHAFT DIAMETER: 0.625-in
SHAFT LENTH: 1.38-in
PILOT DIAMETER: 2.186-in
BOLT HOLE: 0.281-in THRU
BOLT CIRCLE: 4.95-in
COMMENTS: STD NEMA 42 MOTOR, NO ADAPTOR NEEDED
The pinion should be located .983-in from the motor face and tighten:
For non-NEMA dimension motors, mounting kits are available at additional charge. See the Gearhead Mounting Kit Search Tool located on the product page for the proper MM23 or MM34 or MM42 part number.
For pinion location on motor shaft for non-NEMA dimension motors, please email pumptechsupport@parker.com