Right-angle Worm Gearboxes

worm-seriesEJ Series variants, worm gear family

NIDEC-SHIMPO has been at the forefront of developing gear technology to fill the requirements of our OEM customers. Our close partnerships with our installed customer base provided much insight into their evolving need for more high-precision right-angle gearing options. In order to fill that need, NIDEC-SHIMPO expanded upon our right angle product offering to include a variety of high-precision worm gearboxes, known as our EJ Series.

These servo grade speed reducers are ideal for the most challenging of motion control applications. Each series incorporates a globoidal worm gear mesh design in order to achieve the torque handling capacity and the highest levels of precision that our SHIMPO customers have come to expect from us. The input design of our EJ right-angle gearbox applies the same concept of motor modularity that is common across our High Precision product family, meaning our customers and distribution partners get the same level of flexibility, product variety, and overall availability that is unparalleled within our industry.

Advantages of the EJ Series platform design;

  • Quiet operation, in comparison to other competitive worm gearing
  • Compact, with exact reduction ratios
  • High torsional rigidity and torque carrying capacity
  • A reduced backlash feature, unique among right-angle gearheads
  • Industry standard hollow bore output with other shafted options
  • Extremely lightweight, optimized construction
  • Maintenance free, lubrication for lifetime

These right-angle servo grade gearboxes are ideal for applications within custom assembly and test systems, packaging equipment, metal cutting and metal forming machinery, general purpose automotive, among many others. If your application requires the compact footprint of a right-angle worm gear without sacrificing on the performance, contact NIDEC-SHIMPO about the EJ Series today.

 

EJ Series, Summary Level Table

Product Series EJM EJH EJP EJS
Economy Class Heavy Industrial Class High Precision Class Hygienic Class
ejm_s ejh_s ejp ejp
Series Features Globoidal worm gear mesh

Economy leader of category

Aluminum housing

Conventional precision range

Globoidal worm gear mesh

Strong internal structure

Robust cast iron housing

Low backlash option

Globoidal worm gear mesh

Zero backlash option

Optimal sound characteristics

Performance leader of category

Globoidal worm gear mesh

IP69K rated aseptic design

316 stainless with food grade oil

Various output options

Frame Size Variety: 6 Variety: 5 Variety: 6 Variety: 5
Reduction Ratios 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 40, 50, 60 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 40, 50, 60 5, 7, 10, 15, 20, 25, 30, 40, 50, 60
Nominal Output Torque (Nm) 29 – 505 35 – 475 35 – 480 41 – 396
Maximum Acceleration Torque (Nm) 33 – 614 46 – 663 46 – 660 47 – 721
Max. Input speed (rpm) 4000 4000 6000 3000
Backlash (Arc-min) 12 – 41 6 – 32 0 – 24 4 – 24
Output Hollow Bore Size (mm) ø25.4 – 74.6 ø25 – 60 ø25 – 60 ø19 – 35