Z4 Keyless Coupling External Shaft Locking Device Machine Power Lock Locking Assembly

• Standard Or Nonstandard: Standard
• Shaft Hole: 19-32
• Torque: >80N.M
• Bore Diameter: 19mm
• Speed: 4000r/M
• Structure: Flexible
• Model NO.: Z4
• Material: Stainless Steel
• Type: Elastic Coupling
• Delivery Time: Depend on Your Quantity
• Color: as Your Requirement
• Warranty: 1 Year
• Certificate: ISO
• Transport Package: Carton Box
• Specification: as your requirement
• Trademark: No brand
• Origin: China
• HS Code: 8483600000
• Production Capacity: 5000PCS/Year

Product Description

Z4 Shaft Locking Device Clamp Shrink Disc Locking Shaft Coupling

Description:

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.

Product parameters:
Features:
1. Easy to install and disassemble;
2. Good exchangeability;
3. Long lifetime and high efficient transmitting;
4. While running under overload, it can protect the equipment from breakdown.

Packing and shipping
1 Prevent from damage.
2. As customers' requirements, in perfect condition.
3. Delivery : As per contract delivery on time
4. Shipping : As per client request. We can accept CIF, Door to Door etc. or client authorized agent we supply all the necessary assistant

FAQ:
Q 1: Are you a trading company or a manufacturer?
A: We are a professional manufacturer specializing in manufacturing
various series of couplings.

Q 2:Can you do OEM?
Yes, we can. We can do OEM & ODM for all the customers with customized artworks in PDF or AI format.

Q 3:How long is your delivery time?
Generally, it is 20-30 days if the goods are not in stock. It is according to quantity.

Q 4: How long is your warranty?
A: Our Warranty is 12 months under normal circumstances.

Q 5: Do you have inspection procedures for coupling?
A:100% self-inspection before packing.

Q 6: Can I have a visit to your factory before the order?
A: Sure, welcome to visit our factory.