Ondrives: Mechanical - Handwheels & Valve Wheels - GN.11 - Safety Coupling Bushing

GN.11 : Safety Coupling Bushing

Mechanical » Handwheels & Valve Wheels »
GN.11 Type : Safety Coupling Bushing with Hardened and Ground Sliding Surfaces

GN.11 Type : Safety Coupling Bushing with Hardened and Ground Sliding Surfaces

Discounts

1+ 0%

20+ 15%

40+ 20%

60+ 25%

100+ 30%

Part Number	d2 H7	d3	d4^-0.05*	d5	d6 max.	I1	I2^±0.1**	I3	W Min.	Weight g	Cost	Quantity	Order
GN.11751	12	29	25	46	17	42	18	12	4	126	£93.36
GN.11761	14	33	29	48	21	48	20	14	4	194	£104.83
GN.11771	18	39	35	60	26	50	24	13	4	275	£115.96
GN.11781	22	46	41	70	30	54	28	13	4	390	£126.43

* Bore diameter of hub d4 H7
** Hub Height

Material
Steel with hardened and ground sliding surfaces.
Hub: Hardened steel with standard H7 tolerance reamed hole and DIN 6885 keyway, sheet 2 - P9 tolerance and tab for fixing on handwheel hub.

Other Info.
Two roller bearings ensure that the handwheel attaches smoothly to the shaft.
Application with a high number of turns is also possible since friction is reduced to the minimum and therefore the handwheel is not entrained by the rotation.
No lubrication is required during use since the roller bearings are already greased prior to bushing assembly.

On request and for sufficient quantities, a more economical version is available without bearings with Teflon® coated sliding surfaces.

GN.11 safety coupling bushings are required for assembly on working elements (handwheels, cranks, etc.) to guarantee maximum accident prevention safety.
The handwheel is couple to the shaft with a snap-in bushing. In the rest position, the handwheel is disengaged.
In accordance with accident prevention rules in order to avoid any unexpected movement of the machine by "Pushing" the handwheel parallel to the axis the handwheel is inserted in a rest position.
By "Pulling" the handwheel parallel to the axis, the two toothed elements inside the bushing fit to each other to create a solid connection between the handwheel and the shaft. The handwheel returns automatically to the rest position when it is released after the operation.
The "Pushing" coupling is obtained by reversing the position of the bushing.

Teflon® is a registered trademark of DuPont Dow Elastomers.

Downloads
PDF Documents : Catalogue Page | Full Range of Handwheels & Valve Wheels