Bellows · Made to order
Dust Covers & Protective Boots — Moulded to Your Rod, Lever or Switch
Moulded rubber dust covers and protective boots for linkages, levers, switches, rod ends and connectors. They keep grit, water and wash spray out of the moving joint and stretch over the part without splitting. Made to your drawing or a sample at our plant in Vilholi, Nashik.
- SEND
- Drawing or sample, the medium and the working temperature
- HARDNESS
- To your drawing
- TEMPERATURE
- By compound; silicone to +200 °C
- FORM
- Moulded, one piece
- MADE TO ORDER
- ISO 9001:2015
- 09111526A
Key facts
A protective boot is a moulded rubber cover that stretches over a linkage, lever, switch, rod end or connector and keeps grit, water and wash spray out of the moving joint. Margo Rubber moulds dust covers and boots in one piece to a drawing or sample in Vilholi, Nashik.
Neoprene (CR), rated −40 to +120 °C, is Margo Rubber’s usual compound for an outdoor dust boot that sees weather and light oil splash. A cracked old boot still gives the mounting sizes, so a buyer can send it with the part it fits over and Margo copies it.
Product gallery
Visual Reference
What we need from your drawing
- Mounting diameters
- To your rod, lever or housing
- Height / travel
- To your drawing
- Wall
- Thin enough to flex, thick enough to take abrasion
- Retention
- Lip, groove, clip or bead
Send the part the boot fits over, or its drawing, and the travel it has to follow.
Technical specifications
Engineering Data
- Product family
- Bellows
- Material
- Neoprene, EPDM, NBR, silicone and the other compounds we mould
- Hardness (Shore A)
- To your drawing
- Tensile strength / elongation
- Per compound datasheet, tested to ASTM D412
- Operating temperature
- By compound; see the table below
- Colour
- Black standard
- Lead time
- Confirmed with the quotation, from approved drawing and approved sample.
- Certifications
- ISO 9001:2015, certificate 09111526A, Integral Certification Ltd.
- Minimum order
- Set by part size and tooling, quoted with the part. Prototype and first-article lots sit outside it.
Dimensional reference
- Mounting diameters
- To your rod, lever or housing
- Height / travel
- To your drawing
- Wall
- Thin enough to flex, thick enough to take abrasion
- Retention
- Lip, groove, clip or bead
Available materials
Rubber Compound Options
Select the compound best suited to your operating environment and application requirements.
| Rank | Compound | Temperature | Choose it when |
|---|---|---|---|
| Default | Neoprene (CR) | −40 to +120 °C | A dust boot that sees weather and light oil splash on a linkage or switch. |
| Leave Neoprene (CR) if… | grease or hydraulic oil reaches it | — | Specify NBR (−30/+120 °C). |
| Leave Neoprene (CR) if… | it sits in sun and rain for years | — | Specify EPDM (−40/+140 °C). |
| Leave Neoprene (CR) if… | it covers a hot part | — | Specify silicone (−60/+200 °C) or AEM (−40/+160 °C). |
| Also available | FKM (−20 to +250 °C) · SBR (−30 to +100 °C) · Natural rubber (−20 to +90 °C) | See each compound | The rows above are about which one your part needs. |
Not sure? Send the medium, temperature and load
SERVICE RANGE
−40 to +120 °C
Neoprene (CR)
Key advantages
Why Specifiers Choose Margo
Fitted to the part, not the catalogue
We mould to your rod, lever or housing, so the boot holds without a hose clip it was never meant to need.
Grease-proof where it counts
On a greased joint we specify NBR; neoprene takes only light splash.
Thin wall, one piece
Flexes with the travel and has no seam to split.
Same lab, same report
Hardness and tensile tested in-house, with the report in the shipment.
Industries served
Global Applications
Automotive
Switch, lever and linkage boots
Food, Beverage & Pharma
Covers on machine linkages that get washed down
Oil & Gas
Valve actuator and instrument covers
Transport — Rail & Marine
Linkage and control covers
Manufacturing process
From Compound to Certification
Material compounding
Polymer, fillers and cure system mixed in-house for the medium and temperature on your drawing. Cure is checked on our ODR rheometer.
Tool design
Moulds designed and made for your part and held as a controlled record. When a mould already exists, first samples take 48–72 hours.
Moulding
Compression moulded, with the cavity count set by your volume.
Trimming
Flash trimmed to the edge condition on the drawing.
Inspection
Dimensions against the drawing, hardness and batch sampling. Results go into the shipment documents.
Export packing
Packed by part number with labels that match the inspection sheet. ISPM-15 treated pallets where timber is used.
Quality assurance
Tested in Our Own Lab, Documented in Every Shipment
Every consignment ships with a material test report, a dimensional inspection sheet and a certificate of conformance. Hardness, tensile and elongation (ASTM D412), density, compression set (ASTM D395 Method B), heat ageing, ozone resistance, fluid swell and low-temperature tests run in our own lab, and cure curves run on our own ODR rheometer. PPAP is available on request. RoHS declarations are issued for all compounds.
ISO 9001:2015 · Certificate 09111526A
Integral Certification Ltd
Scope: rubber moulded components — quality management, not a product approval
ISO 9001:2015, certificate 09111526A, Integral Certification Ltd. Scope: rubber moulded components. It certifies the quality management system, not a product approval.
Certification detailProduction metrics
- 60+
- Active clients
- 48–72 hours
- First samples when the mould exists
- 48 hours
- Quotation from receipt of drawing
Downloads
Technical Documentation
Compound datasheets and part drawings are issued on request, under NDA where required.
Request the datasheetFAQ
Technical & Commercial Questions
Answers to the most common questions from engineering teams and procurement managers worldwide.
What is the minimum order for dust covers and boots?
There is no fixed number. The minimum is set by part size and tooling, and we quote it with the part. Send the drawing and your annual volume and you get both figures in one reply. Prototype and first-article lots sit outside the minimum.
Can you copy an old boot?
Yes. Send the old boot and the part it fits over. A cracked boot still gives us the mounting sizes.
Do you make CV-joint and steering boots?
Yes, to a drawing. This page covers general dust covers; ask for vehicle boots by name.
Do you send test reports with each shipment?
Yes, with every consignment: material test report, dimensional inspection sheet and certificate of conformance. Hardness, tensile to ASTM D412 and compression set to ASTM D395 Method B are tested in-house.
What are your payment and delivery terms for export orders?
TT and LC, agreed per order. Ex-works Nashik or FOB Nhava Sheva. The commercial invoice, packing list and certificate of origin (Nashik Chamber of Commerce) travel with every consignment.
Same compound
Other parts we mould in the same compounds
- Internal Fit Grommets — Single-Bore, Panel-Retained · Neoprene
- Slotted Packing Pad — C-Section · Neoprene
- Air Extractor Flap — One-Way Cabin Pressure Relief · Neoprene
- Rubber Oil Filler Cap — Push-In, Sealed or Vented · Neoprene
- Tailgate Switch Boot — Sealed Push-Button Cover · Neoprene
- C-Pillar Garnish Seal — EPDM Hard Foam · Neoprene
Need this part quoted?
Send the drawing or a sample boot, with the part it covers, the medium and your annual quantity. We respond within 48 hours.