DR-S Rubber Suspension Unit
The DR-S is a rubber suspension unit engineered with a steel housing, a steel inner core, and a steel tube intended for plug-in connections. Finished in yellow protection paint, each unit incorporates standard rubber inserts that provide torsional damping, oscillation absorption, and elastic bearing support. Sourced from Hangzhou Nowarun Industrial Co., Ltd., units are produced to customer drawings rather than catalog specifications to match machine mounting layouts.
Published Data for DR-S Rubber Suspension Unit
Every value below is taken from NOWARUN's own specification for this part.
| Housing Material | Steel |
|---|---|
| Inner Core Material | Steel |
| Connection Type | Steel tube for plug-in connection |
| Inserts | Standard rubber |
| Surface Finish | Yellow protection paint |
| Packaging | PP bag, carton, crate, box or to customer requirement |
| Origin | Hangzhou, Zhejiang, China |
Key Benefits
- Integrated steel tube allows a direct plug-in connection for quick mechanical mounting into machine frames
- Steel housing and steel inner core construction carries industrial mechanical loads without cracking under stress
- Torsional rubber inserts combine suspension, elastic pivot bearing, and vibration damping into a single assembly
- Coated in a yellow protection paint to shield external steel surfaces from industrial workplace corrosion
- Supplied to customer specifications rather than fixed off-the-shelf configurations to align with mating assemblies
- Produced under ISO 9001 and ISO/TS 16949 certified quality management systems in Hangzhou
Problems It Solves
- Eliminates complex multi-component pin and spring joints by combining bearing and spring action in one unit
- Prevents joint seizure in dusty operating environments because the internal rubber flexes without metal-on-metal friction
- Resolves misalignment during assembly via the steel tube designed specifically for plug-in connection systems
- Overcomes sourcing difficulties when replacement suspension components cannot be found in standard catalog lines
Who It Is For
- Machine design engineers specifying plug-in torsional rubber suspension units for custom assemblies
- Procurement managers sourcing manufactured-to-print steel rubber suspension elements from China
- Original equipment builders in agriculture and machine construction needing rubber pivoting units
- Plant maintenance engineers replacing worn plug-in suspension units that lack standard catalog part numbers
Application Scenarios
- Oscillating mountings in agricultural equipment where torsional rubber dampens continuous structural vibration
- Conveyor transfer joints and screening machinery in mining and aggregate processing facilities
- Elastic pivot points on machinery construction assemblies requiring maintenance-free rotational flexing
- Vibration dampening and pivoting links in timber processing and wood processing machinery lines
- Suspension joints on outdoor equipment where painted steel resists exposure to external conditions
Technical Features
- Steel tube geometry configured for plug-in style mechanical connections
- High-load steel housing protecting internal elastic components from external damage
- Central steel inner core transmitting rotational and oscillating torque to the rubber inserts
- Standard rubber inserts providing progressive torsional resistance and vibration absorption
- Yellow protective paint finish applied over external steel surfaces
Materials
- Steel housing providing structural rigidity and resistance to impact
- Steel inner core transferring torsional loads directly through the assembly
- Standard industrial rubber providing elastic resistance and mechanical damping
- Yellow protective paint applied for external surface preservation
How It Is Made
- 1
Engineering review of customer drawings and plug-in mounting tube tolerances
- 2
Machining and forming of the outer steel housing and steel inner core
- 3
Insertion of standard rubber elements between the inner core and housing under compression
- 4
Application of yellow protection paint to exterior steel surfaces
- 5
Final dimensional inspection of the plug-in tube connection and unit body
- 6
Export packaging into customer-specified cartons, crates, or PP bags
Quality Control
- Inspection of steel housing and tube dimensions to ensure proper fit for plug-in mating
- Verification of rubber insert fit and compression retention inside the steel housing
- Coating inspection to confirm continuous coverage of yellow protection paint across exterior steel
- Manufacturing executed under certified ISO 9001 and ISO/TS 16949 operating procedures
Customization Options
- Inner core and housing dimensions manufactured according to provided engineering drawings
- Plug-in tube diameter, wall thickness, and length adapted to mating shaft requirements
- Custom packaging formats such as branded cartons, wooden crates, or sealed PP bags on request
- Optional secondary surface treatments applied based on specific environmental operating needs
Compared With the Alternatives
| Alternative | Honest trade off |
|---|---|
| Traditional steel coil springs | The DR-S provides internal damping and quiet pivoting without the unguided lateral deflection common in coil springs |
| Rigid greased pin bushings | The DR-S absorbs shock loads and requires no routine lubrication, though it is limited to torsional angular deflection rather than full rotation |
| Catalog-standard suspension mounts | NOWARUN manufactures custom dimensions to fit existing machines, whereas stock catalog mounts force frame redesigns |
Use Guide
- Provide technical drawings showing required tube plug-in dimensions, housing clearances, and loading requirements
- Check that mating shafts or connection pins match the internal dimensions of the steel tube
- Ensure operating deflection remains within the rotational elastic limit of the rubber inserts
- Inspect the yellow painted steel surface periodically if operating in corrosive processing environments
- Mount the unit securely to prevent unwanted axial movement along the plug-in connection point
DR-S Rubber Suspension Unit Questions
What materials are used to construct the DR-S suspension unit?
The housing and inner core are made out of steel, fitted with standard rubber inserts, and include a steel tube for plug-in connection.
What is the surface finish on the DR-S unit?
The external steel components are finished in a yellow protection paint to guard against industrial corrosion.
How does the DR-S connect to the machine frame?
The unit features an integrated steel tube designed specifically for a plug-in connection.
Can the DR-S be made to our proprietary drawing?
Yes. NOWARUN manufactures custom components to customer technical prints rather than supplying fixed catalog inventory.
What certifications does the production facility hold?
Manufacturing operates under ISO 9001 and ISO/TS 16949 management systems, with SGS and ROHS compliance.
How are these rubber suspension units packaged for export delivery?
Units are packed using PP bags, cartons, crates, boxes, or arranged according to customer specifications.
Related Products
DR-C Rubber Suspension Unit
The DR-C rubber suspension unit uses a steel outer housing and an inner steel core separated by standard rubber…
View specifications
DR-A Rubber Suspension Unit
Type DR-A is a rubber suspension unit designed for machinery mountings, built using a light metal profile or steel…
View specifications
DK-S Rubber Suspension Unit
The DK-S rubber suspension unit combines a light metal outer profile with an inner steel tube configured for plug-in…
View specifications
DK-A Rubber Suspension Unit
DK-A rubber suspension units are engineered for alternating motions that pass over the neutral element position in…
View specificationsIndustries That Use It
Agriculture Equipment
Agricultural machinery operates under extreme field conditions where drive lines, belt drives and vibrating screens bear continuou
IndustryPlayground and Outdoor Fitness
Playground and outdoor fitness equipment requires pivot mechanisms and drive components that endure constant cyclic motion and ful
Quote DR-S Rubber Suspension Unit to Your Drawing
Send the print with the quantity, material, tolerance and surface treatment. Missing details get asked about, not assumed.