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.