These Add on units have been design
to be able to increase the overall
gearing range of the New & Improved
CH Design of Worm Gear Units that
have the same dimensions of the
Bonfigiloli VF 44-49 and the W 63-75
86
series worm units by coupling a
3-1 ratio Pre-Stage Helical Spur unit
CHPC similar to the VFR & WR
series Bonfiglioli range although with
some minor dimensional changes so
as to provide a sealed modular unit
which can be supplied complete with a
Motor or as a Pam type with a Hollow
Input shaft and motor flange, hence dimensional replaceable, but offering the following improved design features:
1- Input Shaft Oil Seal mounted in the Gear Casing rather than the Flange avoiding the possibility of seal damage during flange changes!
2- The Worm has a ZI involute profile to improve performace and reduce Temperature!
4- Gear castings are in Aluminium and painted with RAL 9022 Aluminium colour epoxy power to protect against oxidation and any mirco blowholes!
Lakehurstpt
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Worm Gear units with Pre-stage Helical Spur CHPC/CH05-08 Similar to the Bonfiglioli VFR44-49 & WR63-86 Series
Information Bar :-




















































Unit

Size

CHPC

63/CH04

CHPC

63/CH05

CHPC

71/CH05

CHPC

71/CH06

CHPC

71/CH07

CHPC

71/CH08

CHPC

80/CH07

CHPC

80/CH08

Popular

Ratio's

**

105,138,

180,210

300

108,135

180,210

240,300

84,108

135

114,135

192,240

300

120,150

180,240

300

90,120

150

168,192

240,300

120,138

168,192

240

Motor

Flanges
 65B5  63B5  71B5  71B5    71B5    71B5   80B5    80B5

Output

Flange

Types

  F, FA

  F, FA

  F, FA

  F, FC
  F, FC   F, FC    F, FC   F, FC 

Mounting

Types*

 B3,B6

 B7,B8

 B3,B6

 B7,B8

 B3,B6

 B7,B8

 B3,B6

 B7,B8

 B3,B6

 B7,B8

 B3,B6

 B7,B8

 B3,B6

 B7.B8

 B3,B6

 B7,B8
**Other gearing ratio's available upon request? * Other mounting positions available upon request!
CH type - Foot Mounting with Pam Hollow Input Shaft & Motor Flange!
CHE type - Foot Mounting with Pam Hollow Input Shaft & Motor Flange and Solid Input Shaft Extension! 
CH--P type - (Only available on CH04 & CH05 units) Shaft Mounting with Pam Hollow Input Shaft & Motor Flange!
CHE---P type - (only available on CH04 &CH05 units) Shaft Mounting with Pam Hollow Input Shaft & Motor Flange and Solid Input Shaft Extension!
Design Types:
This New feature is there to provide useful links to other pages, further information and Tips you may find of interest?
All sizes are pre-filled with Synthetic Lubricant to ISO VG320 -25C/+50C and are maintenance free with sufficent lubricant for mounting in any position!.
Lubrication:
Tips:
Other Sizes & Design Types:
Optional Extras:
1- Single Output Shaft!
2- Double Output Shaft!
3- Torque Arm!
4- Shaft End Cover!
5- Output Flanges F,FA & FC!
-> 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/CHM Prestage Helical Spur/Worm(Motovario PC-NMRV040-130)
-> CHM/CHM Double Worm Units (Motovario NMRV/NMRV025/030- 063/150)
-> CH/CH Double Worm Units (Bonfiglioli VF30/44 -VFW44/86)
For these CHPC/CH units the Torque is limited to the transmitting capacity of the Gearing not necessary relative to the Power of the motor fitted? Ask out Technical Sales for output torque ratings for these units!
An alternative Method of providing an large gearing ratio's, is to couple two Worm units together! Please use the links opposite and look at the Series CHM/CHM (Motovario type) and CH/CH (Bonfiglioli Type)!
-> 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)
Drive selection Service is available upon request!
Technical Drive Service:
-> CHV Mechanical Variators 5-1 similar to (Motorvario/Bonfiglioli/Siti)
-> Adjustable Motor Bases & Slide Rails can also be use for GearBox mounting