Standard_Parts_Catalogue

Safety Handwheels Instruction - Application Guide These handwheels are an advance development of the safety handwheels with coupling attachment GN 000.5 (needle bearing). The coupling elements have been specially developed for this type of handwheel and are therefore not intended for general use. Also, they are only intended for the “pulling” mode of engagement. The user notices listed under 1. and/or 2. above also apply here. Owing to their type of construction, especially the cap, these handwheels are largely protected from dirt. Safety Handwheels GN 321.6 → Page 274 3. Safety Handwheels with Cap GN 321.6 The safety handwheels described under 1. to 3. above are characterised by the fact that they require no special machine- side measures for attaching. They are simply pushed over the shaft. However, the inevitable bearing friction generates a link between shaft and handwheel which needs to be kept in mind as specified above. For applications with very high rotary speed, ultimate levels of safety at work and under continuous operation, the safety handwheel with fixed bearing flange is the best possible solution. The separate bearing configuration means that the user notices given for types 1. to 3. do not apply. However, this safety handwheel is more complex, with a number of requirements to be met at the machine side. Safety Handwheels GN 327 → Page 276 4. Safety Handwheels with Fixed Bearing Flange GN 327 The details given under 1. above apply in principle also to these safety handwheels. With their needle bearings, they have the advantage over friction bearings that they can be used for somewhat higher speeds due to their substantially lower friction, lower wear and tear and lower sensitivity to lubrication. Owing to their larger construction length and lower friction (hardened contact surfaces) and finer intermeshing, these wheels are also easier to engage. Coupling Attachments GN 000.5 → Page 273 Safety Handwheels with Coupling Attachment GN 000.5 → Page 270 2. Safety Handwheels with Coupling Attachment GN 000.5 (Needle Bearing) Page 269 | 1.3 Adjusting with Handwheels and Cranks