PRODUCTS

CONTACT US

DJM Series Keyway Type Diaphragm Coupling | High-Torque 45# Steel Flexible Disc Coupling

Model Number
Check below, custom

Product Description

obust Power Transmission: DJM Series Keyway Diaphragm Couplings]

 

The DJM Series is a high-performance, single or double diaphragm coupling designed for rigorous industrial environments. Utilizing a heavy-duty keyway connection and precision-fitted reamed hole bolts , this coupling provides a secure, zero-backlash link that excels in high-torque and high-impact applications.

 

Core Product Advantages

  • Premium 45# Round Steel Construction: Crafted from high-density round steel to ensure maximum torsional stiffness, high torque capacity, and low rotational inertia.

  • H7 Precision Bore: Every unit is machined to strict H7 tolerance standards, ensuring exceptional concentricity and reducing mechanical vibration.

  • 304 Stainless Steel Disc Packs: Features high-grade elastic stainless steel diaphragms (circular or square) that offer excellent rust resistance and infinite fatigue life when used within rated limits.

  • Superior Damping & Protection: The flexible disc structure absorbs shocks and dampens vibrations, effectively reducing additional bending moments on the connected shafts.

  • Extreme Environment Ready: Operates smoothly in harsh industrial settings. Compared to gear couplings, the DJM series is more cost-effective, noise-free, and requires no lubrication.

  • High Sensitivity & Reliable Link: The precision bolt fitment ensures zero-play transmission and instantaneous response, vital for synchronized industrial drives.

 

Technical Specifications Table

AttributeSpecification Details 
ModelDJM Series (Single/Double Diaphragm) 
Connection TypeKeyway / Keyed Joint 
Body Material45# Quality Steel (Anti-rust) 
Disc Material304 Stainless Steel 
Bore AccuracyH7 Tolerance 
Torque CapacityHigh Torque Industrial Grade 
Max SpeedUp to 10,000 r/min (Model Dependent) 
FastenersGrade 12.9 / Reamed Hole Bolts 

DJM Diaphragm Coupling, Keyway Disc Coupling, 45# Steel Flexible Coupling, High Torque Industrial Coupling, Stainless Steel Membrane Coupling.

Table 1: DBN51 Series

 
 
ModelOuter Diameter (mm)Length (mm)Bore Range (mm)
DBN5156458-20
DBN51685611-25
DBN51826614-35
DBN51946814-38
DBN511048019-42
DBN511269122-50
DBN5114410230-60
DBN5115210245-75
DBN5117812448-80
DBN5119014560-85

Table 2: DBL11 Series

 
 
ModelOuter Diameter (mm)Length (mm)Bore Range (mm)
DBL11689011-22
DBL11829514-30
DBL119411019-35
DBL1110412424-40
DBL1112615230-50
DBL1114417035-58

Table 3: DBL31 Series

 
 
ModelOuter Diameter (mm)Length (mm)Bore Range (mm)
DBL31566514-24
DBL31706518-35
DBL31807018-35
DBL31907020-48
DBL311007024-60
DBL3112610028-65
DBL3114411832-75

Table 4: DBL41 Series

 
 
ModelOuter Diameter (mm)Length (mm)Bore Range (mm)
DBL41568014-24
DBL41708018-35
DBL41808818-35
DBL41908820-48
DBL411008824-60
DBL4112612528-65
DBL4114414432-75

Product Show

DJM Diaphragm Coupling

Add Your Tooltip Text Here

related products

Keyway Disc Coupling
Taper Sleeve Coupling
Keyless Diaphragm Coupling
Single Diaphragm Coupling