Imagen de avatar miniature high speed bearing
deepgroovebearing

The bolt heads nuts and the connected parts should be in close contact

K—torque coefficient, which can be 0. 5. For pins and pin holes that require high positioning accuracy, check their contact area before assembling, and they should meet the requirements of the equipment technical documents; if there are no regulations, 50%-75% of their total contact area should be used. 4. High-strength bolts and their fasteners should be used together. 2.

For ordinary flat keys, feather keys, thin flat keys and semicircular keys, the two sides should be in close contact with the keyway, and not contact the bottom surface of the hub keyway. For bolt connections that require pre-tightening force, the pre-tightening force can be measured by the following methods: 1. 2. After the bolts and nuts are tightened, the bolts should be exposed by 2-4 pitches of the nuts; after the countersunk screws are tightened, the nail heads should be buried in the machine parts and not exposed. If there is a locking requirement, it should be locked according to its technical regulations after tightening; when using a double nut to lock, the thin nut should be installed under the thick nut; no two identical washers should be used under each nut. When assembling the bolts, the following requirements should be met: 1.

The bolt heads, nuts and the connected parts should be in close contact. If there are special requirements for the contact area and contact gap, the inspection should be carried out according to the technical regulations. When assembling bolts made of stainless steel, copper, aluminum, etc. 9. The type and specification of the check pin should meet the requirements of the design and equipment technical documents. The key assembly should meet the following requirements: 1. 10. 2. According to the nature of the pin, it is advisable to choose the corresponding method to install; the position of the pin hole should be correct. 6., lubricant should be applied to the threaded part.

Only after the relevant 625 ball bearing parts and their geometric accuracy are adjusted to meet the requirements can they be installed. During assembly, when pins and pin holes are found not to meet the requirements, they should be reamed and new pins should be provided; if the positioning accuracy is high, it should be carried out after the geometric accuracy of the equipment meets the requirements or the dry running test is qualified.

Tags:

Deja un comentario