For Higher than 300-1
gear ratio's, then you
should consider this
series of Double Worm
units each CH
series
worm unit is
dimenstional the same
as the Bonfiglioli VF/VF
& VF/W series and by
using an additional bolt
on kit it is possible to
join the two worm units
together to provide a
mulitude of gearing ratios and mounting positions? The series is almost dimensional identical to Bonfiglioli own Double worm series VF/VF & VF/W with only slight dimentional differences in the Adaptor Kit that couples the two units together!
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Double Worm Gear units (Increased Ratios Higher than 300-1): CH/CH03/04 - 04/07 Similar to the Bonfigiloli VF/VF30/44 -44/86 Series
Information Bar :-
This New feature is there to provide useful links to other pages, further information and Tips you may find of interest?
Lubrication:
Tips:
Alternatively for Better efficiency and higher output torque you should consider selecting a Worm Unit with the Pre-stage Helical Spur add on unit for ratio's between 100 to 300-1! Please use the links opposite and look at the Series CHPC/CHM (Motovario type) and CHPC/CH (Bonfiglioli Type)!
Other Sizes & Design Types:





































 Unit

Size

03/04
03/05 03/06 04/07 04/08

Popular

Ratio's** 

245,350

420,560

700,840

1120

1680

2100

2760

240,315

420.540

720.900

1120

1440

2160

2700

240,315

450,570

720,900

1200

1520

2280

2700

250,300

400,525

700,920

1200

1500

2100

2800

230,300

400,525

700,920

1380

1840

2116

2760

Motor

Flange

Sizes

56B5/B14

63B5/B14

56B5/B14

63B5/B14

56B5/B14

63B5/B14

63B5/B14

71B5/B14

63B5/B14

71B5/B14

Output


Flange

Types
   F      F      F    F, FA    F, FA

Mounting

Positions*

OAD,OAS

OBD,OBS

VAD,VAS

VBS,VBD

OAD,OAS

OBD,OBS

VAD,VAS

VBS,VBD

OAD,OAS

OBD.OBS

VAD,VAS

VBS,VBD

OAD,OAS

OBD,OBS

VAD,VAS

VBS,VBD

OAD,OAS

OBD,OBS

VAD,VAS

VBS,VBO
CH---P/CH type - Ist (CHP) Hollow Output Shaft Mounting with Pam Hollow Input Shaft & Motor Flange to 2nd (CH) Foot Mounting with Hollow Output!
CHR---P/CH type - Ist (CHRP) Hollow Output Shaft Mounting with Single Solid Input Shaft to 2nd (CH)Foot Mounting with Hollow Output!
CH---P/CH---P type - Ist (CHP) Hollow Output Shaft Mounting with Pam Hollow input Shaft & Motor Flange to 2nd (CHP) Hollow Output Shaft Mounting!
CHR---P/CH--P type - Ist (CHRP) Hollow Output Shaft Mounting with Single Input Shaft  to 2nd (CHP) Hollow Output Shaft Mounting!
(Double Input Shafts types available upon request!)
Design Types:
** Other ratio's available upon request! * Unless specified at time of order these units will be mounted in the OBS position!
Optional Extras:
1- Single Output Shaft!
2- Double Output Shaft!
3- Torque Arm!
4- Shaft End Cover!
5- Output Flanges F,FA!
-> CH 03-05 Worm Units (Bonfiglioli VF30 -49)
-> CH 06-08 Worm Units (Bonfiglioli W 63-86)
-> CHM025-90 Worm Units (Motorvario NRV/NMRV025-90)
-> CHM110-150 Worm Units (Motorvario NRV/NMRV110-150)
-> CHPC/CH Prestage Helical Spur/Worm(BonfiglioliVFR44,49&WR63,75&86)
-> CHPC/CHM Prestage Helical Spur/Worm(Motovario PC-NMRV040-130)
-> CHM/CHM Double Worm Units (Motovario NMRV/NMRV025/030- 063/150)
All CH Series sizes are pre-filled with Synthetic Lubricant to ISO VG320 -25C/+50C and are maintenance free with sufficent lubricant for mounting in any position!.
-> CHS Worm Screw Jacks (Manuel & Motorised) 0.5 to 10 ton
-> CHA Shaft Mounted Speed Reducer (Bonfiglioli TA30-80)
If you can not find what you are looking for here!
Besides the sizes listed here, we can also provide the entire range of Bonfigiloli Inlne units as well as others brand name such as Varvel and Siti? please contact our Sales Office for full details!
-> CHC Helical Inline Gear Unit with same Foot print as Motovario & Bonfiglioli)
-> CHO Helical-Hypoid Gear Unit with Same Footprint of CHM& CH Worm Units
-> CHT-RP Right Angle Spiral Bevel T Gear units (Poggi 2000 Series)
-> CHT-RB Right Angle Spiral Bevel T Gear (Poggi 4000&Bonfigiloli RAN series)
Technical Drive Service:
Drive selection Service is available upon request!
-> Adjustable Motor Bases & Slide Rails can also be use for GearBox mounting
-> CHV Mechanical Variators 5-1 similar to (Motorvario/Bonfiglioli/Siti)