.:: JOINTS PRESENTATION series "G-H"::.  
  "MF" UNIVERSAL JOINTS WITH PLAIN OR NEEDLE ROLLER BEARINGS SERIES "G-H" TO DIN 808

"G" series (plain bearings) is provided with sliding bushes, while "H" series with needle roller bearings.
Joints with plain bearings are available in 2 versions:
Version G to DIN 808
Version GB to DIN 808/7551
Joints with roller bearings are available in 2 versions:
Version H to DIN 808
Version HB to DIN 808/7551
They all consist of a star wheel core and 2 half-joints with fork ends.
Between the pins of the star wheel and the holes of the forks, 4 wear-resistant sliding bushes (for G series) or roller bearing (for H series-high speed) are fitted in.
The 4 bushes have holes for lubrification.
Neither lubrification nor maintenance is required for H series (high speed joints with roller bearings) as their bearings are lubricated for life.
 

Joints with plain bearings - G series - are for middle-low speeds and where there are shock loads.
For high speeds and relatively low torques types with roller bearings (H - HB) are recommended.
Both versions offer high efficiency, silent running, low friction coefficient at competitive prices.
All rubbing sufaces are hardened and ground.
Maximum working angle is 45° for single joints and 90° for double joints.
Maximum speed is 1000 R.P.M. for G series, while H series can reach 4000 R.P.M.
All these joints are also supplied in telescopic version.