Factory supply OEM high precision custom 45#/40Cr steel shaft keyless locking devices power lock/locking assembly connectors

  • 1 - 199 Sets
  • 200 - 999 Sets
  • 1000 - 4999 Sets
  • >=5000 Sets
Model Number:
Z1-Z24 OEM
Lead Time:
Quantity(Sets) 1 - 5000 >5000
Est. Time(days) 45 Negotiable
Customized logo (Min. Order: 1000 Sets)
Customized packaging (Min. Order: 500 Sets)


Graphic customization (Min. Order: 1000 Sets)
materials (Min. Order: 200 Sets) Less
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Quick Details
Applicable Industries:
Manufacturing Plant, Machinery Repair Shops
Place of Origin:
Shanxi, China
Brand Name:
45#/40Cr steel
Heat treatment:
conditioning treatment
25* 6.3-710*137 mm
0.01-100.3 KG
Pf+100N/mm2 rated load:
Pressure of joint surface:
less than 350(Pt-N/mm2)
Supply Ability
Supply Ability:
50000 Set/Sets per Month
Packaging & Delivery
Packaging Details
Wooden pallet or according to customer requirements
Tianjin port
Lead Time :
Quantity(Sets) 1 - 5000 >5000
Est. Time(days) 45 To be negotiated
Product Description

Power lock

1. Use expansion sleeve to make the manufacturing and installation of main engine parts easy.The processing of shaft and hole with expansion sleeve installation does not require high-precision manufacturing tolerance as interference fit.Expansion sleeve installation without heating, cooling or pressure equipment, only the bolt as required torque can be tightened.The hub can be conveniently adjusted to the desired position on the shaft.Expansion sleeve can also be used to connect parts with poor weldability.

2. Long service life and high strength of the expanded sleeve.Expansion sleeve relies on friction transmission, no keyway weakening to the connector, and no relative movement, no wear and tear will occur in the work.

3. When the expansion sleeve is overloaded, it will lose its connection function and protect the equipment from damage.

4. Expansion sleeve connection can withstand multiple loads, and its structure can be made into a variety of patterns.Depending on the load size of the installation, multiple expansion sleeves can also be used in series.

5. The expansion sleeve is easy to disassemble and has good interchangeability.Since the expansion sleeve can combine the hub with larger clearance, screw the bolt loose when disassembling, so that the connected parts can be easily disassembled.When expanding, the contact surface is close enough to resist corrosion and easy to disassemble.

Material: 45#/40Cr steel
Heat treatment: conditioning treatment
Size: 25* 6.3-710*137 mm
Weight: 0.01-100.3 KG
Pf+100N/mm2 rated load: 4.0-3700KN
Pressure (Pt-N/mm2) of expansion sleeve and shaft joint surface: less than 350

Select the expansion sleeve according to the edit
The choice of expansion sleeve should meet:
A. Transmission torque: Mt ≥ M
B. Withstand axial force: Ft≥Fx
C. Transmission force: Ft≥F2X+(Md/2×10-3)2
D. Withstand radial force: Pt ≥ Fr / d1 × 103

In the formula:
M-torque to be transmitted, KN·m;
Fx-axial force to be withstood, KN;
Ft-bearing to withstand radial forces, KN;
Mt-Rated torque of expansion sleeve, KN·m;
Ft-The rated axial force of the expansion sleeve, KN;
d, l - the inner diameter of the expansion sleeve and the inner ring width, mm;
Pt-pressure between the expansion sleeve and the shaft, N∕mm2

Detailed Images

Z3 type power lock

For details of other models, please contact us by email or phone.

Our Company

The factory covers an area of 26,700 square meters, with 39 series of products and nearly 3,000 varieties. About 500 sets of plastic molds and aluminum die casting molds are manufactured every year, with an annual output of 500,000 cases and shells.The company's largest aluminum die-casting machine is 1250 tons, the largest injection molding machine is 6300 grams, the largest stamping machine is 100 tons, the largest processing center area is 1500*1200, various processing equipment such as CNC puncher, bending machine, drilling and milling integrated machine and laser cutting equipment 120, the production capacity is up to 15 million USD.The company has a perfect quality assurance system, processing quality to reach the international advanced level, welcome customers from all over the world to cooperate or OEM.My company has mitsubishi slow line cutting machine, spark machine, Taiwan peak processing center, engraving and milling machine, surface grinding machine and other dozens of precision mold equipment.The aluminum die-casting workshop is equipped with Hong Kong die-casting machines of 160 tons, 350 tons, 600 tons and 1,250 tons.The injection molding workshop is equipped with nearly 30 sets of plastic injection molding machines, with a maximum injection molding capacity of 6300g.In addition, there are CNC puncher, bending machine, drilling and milling and precision cutting equipment 120.Recently the company has imported three sets of Japanese painting equipment.Sophisticated equipment for the development of high-precision mold and high-grade products will provide a strong guarantee.

Our Service

1.Your inquiry related to our products or prices will be replied in 12 hours.
2.Individual formula according to customers' special drawing requests
3.Manufacturer with large capacity,ensures the fast production cycle after confirming the order.
4.Protection of sales area and private information for all of our customers.
5. Providing free samples + dimension inspection report + material report;
6. Checking raw material, and inform customer before mass production;
7. Informing customer production schedule weekly;
8. Arrange shipment, and Inform customer in advance 7 days before finishing the order;
9. Before shipment, send the detailed product pictures, dimension inspection report, material report to customer;
10.Delivery is on time. 

Packing & Delivery