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Notice regarding changes to model numbers for Couplings and Gear Motors Products Information

Model numbers for Couplings and Gear Motors will change from November 1, 2016.

To meet customers demand we will expand Fit Bore (short delivery bore finishing service) for couplings with new model numbers and review the bore finishing price for the NEF and NER Series. In addition we will change the model number of gear motors to make it simpler to specify specifications by combining the description of terminal box position and angle with the option codes.

1. Model number changes

Coupling model number changes

Models affected: NEF, NER, and NEH Series Echt-Flex Couplings, Roller Chain Couplings
  • Finished Bores with keyways
We reviewed our model numbering system for finished bores with keyways and expanded the number of possible combinations to one million (1mm unit bore diameters, 9 types of bore tolerances, 4 types of keyways, and 9 kinds of tap positions for set screws).

Gear Motor model number changes

Models affected: Gear Motors, Hypoid Motors, and Croise Motors
We combined the supplementary code, conventionally written separately from model numbers (such as terminal box angle and position), and optional code as one model number. This change will make it possible to confirm the specifications with the model number, making it possible to clearly understand them from outer dimensional drawings and name plates.

Regarding the "-TK" notation at the end of model numbers for special products

Models affected: All reducers
“-TK” will be shown at the end of MTO model numbers. With this change, it will be possible to identify standard products from MTO products from the model number.

2. Changes to model numbers for Couplings and Gear Motors

Orders from November 1 will be switched to the new model numbers.

3. Example of new model numbers (before and after change)

Details of new model numbers for NEF, NER, and NEH Series

NEF 700 W - N H 70 E D2 X K H 120 J D2
Series Size Type (1) (2) (3) (4) (5)

(1) Kind of hub

  • N: Standard hub
  • K: Expanded hub
  • L: Extended hub

(2) Shaft bore tolerance

  • H: H7 (Standard)
  • F: F7
  • J: JS7
  • G: G7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

(3) Bore diameter

  • Shaft bore diameters are in 1mm units.

(4) Keyway tolerance

  • J: New JIS Js9 (Standard)
  • P: New JIS P9
  • E: Old JIS E9
  • F: Old JIS F7
  • Yellow highlighted areas are expanded models.
  • Due to their shape, only D0, D1, D2, D5, D6, and D8 are available as expanded hubs.

(5) Set screw positioning

  • D0 Set screw positioning illustration
  • D1 Set screw positioning illustration
  • D2 (Standard) Set screw positioning illustration
  • D3 Set screw positioning illustration
  • D4 Set screw positioning illustration
  • D5 Set screw positioning illustration
  • D6 Set screw positioning illustration
  • D7 Set screw positioning illustration
  • D8 Set screw positioning illustration

Example of new model numbers

Before change

NEF 130 W - N 50 E X K 75 J
(1) (2) (3)
  • (1) Kind of hub N: Standard hub
  • (2) Bore diameter: 50mm
  • (3) Bore tolerance: H7 Keyway Old JIS E9 (set screws at 2 locations at 90º)

After change

NEF 130 W - N H 50 E D2 X K H 75 J D2
(1) (2) (3) (4) (5)
  • (1) Kind of hub N: Standard hub
  • (2) Bore tolerance: H7
  • (3) Bore diameter: 50mm
  • (4) Keyway tolerance Old JIS E9
  • (5) Set screw positioning (2 locations at 90º)

Details of new model numbers for Roller Chain couplings

CR 6022 - N H 35 J D2 X N F 40 F D2
Series Size (1) (2) (3) (4) (5)

(1) Kind of hub

  • N: Standard hub

(2) Shaft bore tolerance

  • H: H7 (Standard)
  • F: F7
  • J: JS7
  • G: G7
  • P: P7
  • M: M7
  • N: N7
  • K: K7
  • R: R7

(3) Bore diameter

  • Shaft bore diameters are in 1mm units.

(4) Keyway tolerance

  • J: New JIS Js9 (Standard)
  • P: New JIS P9
  • E: Old JIS E9
  • F: Old JIS F7
  • Yellow highlighted areas are expanded models.

(5) Set screw positioning

  • D0 Set screw positioning illustration
  • D1 Set screw positioning illustration
  • D2 (Standard) Set screw positioning illustration
  • D3 Set screw positioning illustration
  • D4 Set screw positioning illustration
  • D5 Set screw positioning illustration
  • D6 Set screw positioning illustration
  • D7 Set screw positioning illustration
  • D8 Set screw positioning illustration

Example of new model numbers

Before change

CR 6022 SB - P 28 E D1 X M 71 P D3
(1) (2) (3) (4)
  • (1) Bore tolerance: P7
  • (2) Bore diameter: 28mm
  • (3) Keyway tolerance: Old JIS E9
  • (4) Set screws at locations at 90º

After change

CR 6022 - N P 28 E D2 X N M 71 P D3
(1) (2) (3) (4) (5)
  • (1) Kind of hub N: Standard hub
  • (2) Bore tolerance: P7
  • (3) Bore diameter: 28mm
  • (4) Keyway tolerance Old JIS E9
  • (5) Set screw positioning (2 locations at 90º)

Model number changes for Gear Motors

  • Before change: Supplementary codes are in the second line of the model number
  • After change: Supplementary codes will be shown in the model number as a optional code
Supplementary codes
  • 1. Position of terminal box (P1.P2.P3.P4.P5.P6.P7)
  • 2. Direction of terminal box wiring outlet (D1.D2.D3.F1.F2.F3)
  • 3. Colors (C0.C1.C2.C3)
  • 4. Hollow shaft with custom inner diameter (S1.S2.S3.S4) *Hypoid Motor

Gear Motor Example of new model numbers

Before change

[Model number]

GMTA 040 - 28 L 75

[Supplementary codes]

P2 C0
(1) (2)
  • (1) Position of terminal box: 180º
  • (2) Colors: Light grey

After change

[Model number]

GMTA 040 - 28 L 75 P2 C0
| |
Will be shown in the model number as an optional code

Hypoid Motor Example of new model numbers

Before change

[Model number]

HMTA 040 - 30 H 50 B V

[Supplementary codes]

C3 S2
(1) (2)
  • (1) Output bore diameter: φ25
  • (2) Colors: Dark silver metallic

After change

[Model number]

HMTA 040 - 30 H 50 B V C3 S2
| |
Will be shown in the model number as an optional code

Croise Motor Example of new model numbers

Before change

[Model number]

CSME 220 - 40 1 H 50 B

[Supplementary codes]

P1 F2 C3
(1) (2) (3)
  • (1) Position of terminal box: 90º
  • (2) Direction of terminal box wiring outlet: 180º
  • (3) Colors: Ivory white

After change

[Model number]

CSME 220 - 40 1 H 50 B P1 F2 C3
| | |
Will be shown in the model number as an optional code

Example of new custom model reducer number

Before change

HMTA 010 - 38 L 1200 L
Example: Special extended output shaft

After change

HMTA 010 - 38 L 1200 L -TK
"TK" means it is a custom order.
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