| Customization: | Available |
|---|---|
| Standard Or Nonstandard: | Standard |
| Shaft Hole: | 19-32 |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Z4 type expansion sleeve consists of an open double cone inner ring with different taper and an open double cone outer ring and two double cone compression rings, which are locked with hexagon socket bolts.
Compared with the Z2 type, the joint surface length is high, the centering precision is high, and it is used in the case where the rotation precision is required to be high and a large load is transmitted.
When selected, the tolerance bands of the shaft and the hole combined with the expansion sleeve are h8 and h9 respectively;
Material: 45# steel
Nominal torque/ rated torque: 6.85KNm-245KNm
Hole diameter: 70mm- 300mm
The Z4 type expansion joint screw has a mechanical performance rating of 12.9.
1. Installation:
The expansion sleeve is greased at the factory and can be installed directly. When installing, first screw three bolts 4 into the screw holes of the flange of the other part 1 and spread them evenly around the circumference to open the inner sleeve 1 and the outer sleeve 2. Then place the expansion sleeve into the hub hole of the design position and tighten the bolt with the force gauge. The method of tightening is to screw each bolt to 1/4 of the rated torque at a time. The order of tightening is bounded by the slit. The left and right cross symmetry is tightened one after the other to ensure that the rated torque value is reached.
2. Disassembly:
Loosen all bolts a few turns before disassembly. Then screw in the bolt 4 top loose sleeve in the disassembled screw hole.
3. Protection:
MoS2 oil is strictly prohibited during installation to prevent contamination of the expansion sleeve. On machines with poor open air or working environment, rust-proof grease should be applied regularly on the exposed end face and bolts of the expansion sleeve. The expansion sleeve type with better rust resistance should be selected.
){kind=link}