6.8　Head Wheel

Ⅰ　Dominant Item

6.8.1　Assembly for chain blades of head wheel chain shall meet requirements of design technical document.

Check quantity:to check all.

Inspection method:to observe，to take actual measurements，to check assembly records.

6.8.2　Distance between centers of two bearings，and axial jump clearance shall meet requirements of design technical document.Stop blocks shall be welded for fixing at two radial sides of bearings after head wheel is aligned.

Check quantity:to check all.

Inspection method:to check installation quality records，to inspect.

Ⅱ　General Item

6.8.3　Contact area between bearing and bearing base，between bearing base and framework of sintering equipment，shall contact closely after tightened by bolts；penetrated area by 0.05mm fill gauge shall not be more than 1/3 contact area.

Check quantity:to check all.

Inspection method:to inspect，to check by fill gauge.

6.8.4　Tolerance for installation of head wheel shall meet requirements in Table 6.8.4，see Figure 6.8.4.

Check quantity:to check all.

Inspection method:see Table 6.8.4.