1. Core parameter standards
Technical indicators of the project
Rated speed 4500 RPM (dynamic balance level G6.3)
Torque range 15-800 Nm (divided into 8 size segments)
Elastic element Nitrile rubber (NBR) 80 Shore-A ± 5
Compensation capability axial ± 1.2mm/radial ± 0.5mm/angular ± 1.5 °
Axis hole tolerance H7 (default)/Customizable K7 interference fit
Protection level IP54 (standard)/optional IP67 sealing
2. Materials and processes
Structural decomposition:
Shell:

Precision cast aluminum alloy (A356-T6)

Surface hard anodizing (25 μ m, HV ≥ 800)

Needle gear component:

42CrMo alloy steel (quenched HRC50-54)

Phosphating treatment (anti micro motion wear)

Rubber lining:

Bayer NBR compound from Germany (oil resistance index ≥ 8)

Compression molded vulcanization molding (with embedded metal skeleton inside)

Key processes:
Dynamic Balance Test: Vector Correction at 3500RPM

Fatigue verification: 500000 cycles of testing (axial ± 1mm reciprocating motion)

3. Customized options
Elastic body upgrade:
High durability: Hydrogenated Nitrile Rubber (HNBR) with temperature resistance increased to 120 ℃

Conductive type: Carbon black filled NBR (surface resistance ≤ 10 ⁴ Ω)

Food grade: White FDA certified NBR

Structural variation:
Quick release: equipped with a spring locking device (replacing the bushing without disassembling the shaft)

Flange extension: Supports DIN 5480 spline interface

Explosion proof type: ATEX certified copper alloy components

4. Industry application verification
CNC machine tool: connection between spindle and encoder (vibration attenuation>40%)

Pump equipment: Chemical centrifugal pump (acid and alkali resistant NBR formula)

Generator set: Diesel engine coupling (resistant to instantaneous impact)

Automated Machinery: SCARA Robot Joint Transmission

5. OEM service process
Requirement analysis:

Provide a 'Working Condition Survey Form' (including torque spectrum/environmental pollutant types)

Prototype design:

Three working day 2D plan diagrams (including FEA stress analysis report)

Prototype testing:

Free provision of 3 sets of samples (with vibration test data attached)

volume production:

Delivery of the first batch within 30 days (starting from 500 sets, with ± 0.02mm size control)

6. Installation and Maintenance Guide
Central requirements:

Laser calibration ≤ 0.1mm/m (radial)

Angular deviation detected with plug gauge (≤ 0.2mm gap)

Lubrication suggestions:

Maintenance free design (rubber self-lubricating)

Silicone grease can be applied in extreme environments to extend the lifespan of rubber