About Hong Kong Metro Bearing And Automotive Limited - Commercial Vehicle Brake and Bearing Supplier in Hong Kong

Hong Kong Metro Bearing And Automotive Limited is an exporter registered in Hong Kong with an active catalogue of 11 products grouped under six top categories: Automobile Brakes & Spare Parts, Pins, Flanges, Wheel Rims and Wheel Hubs, Bearing, and Industrial Valves & Gauges. The catalogue is concentrated on pneumatic brake system components for commercial vehicles, with complementary lines in chassis hardware and rolling-element bearings. Specific product families listed include service and spring brake chambers for both disc and drum brakes, air brake diaphragms, clevis pins, air brake hoses and fittings, wheel hub units, tapered roller bearings, and air valves. The brake-side catalogue spans HS subheadings 8708.30, 8708.31, 8708.40, 8708.93, 8708.94 and 8708.99, all falling within Chapter 87 (vehicles other than railway or tramway rolling stock, and parts and accessories thereof). Bearing products sit under HS 8482.20 (tapered roller bearings, including cone and tapered assemblies). Materials cited in the catalogue include cast iron housings with EPDM rubber seals, high-strength steel with e-coating, carbon steel with high-tensile springs, elastomer/fabric-reinforced diaphragms, brass C36000 and zinc-plated steel fittings, and chrome steel GCr15 for the tapered roller bearings. This combination of cast iron, carbon steel, elastomer and bearing-grade steel is consistent with the material mix typically specified for heavy-duty truck and bus brake systems.

Product Range and Specialties of Hong Kong Metro Bearing And Automotive Limited

The supplier's catalogue is built around pneumatic brake system hardware for trucks, trailers, buses and other commercial vehicles. The chamber line covers service brake chambers (HS 8708.94) and spring brake chambers (HS 8708.31) for disc brake applications, plus service brake chambers and spring chambers for drum brake applications (both under HS 8708.30). Air brake diaphragms (HS 8708.40) are listed in EPDM/NBR elastomer blends with fabric reinforcement, the standard construction for type 24/30 diaphragms used in commercial vehicle air brakes. Supporting items include air brake hoses (HS 8708.99) in carbon or zinc-plated steel, brass C36000 / zinc-plated steel air brake hose fittings (HS 8708.93), and clevis and pins used as chassis linkage hardware. Wheel hub units round out the chassis side, while tapered roller bearings in GCr15 chrome steel (HS 8482.20) address axle and gearbox applications. In the commercial vehicle brake segment, buyers typically evaluate chambers by type number (type 16, 24, 30, 36), stroke length (commonly 57 mm and 76 mm), and rated operating pressure of 8 bar (116 psi). Diaphragms are specified by compound (EPDM for temperature resistance down to roughly -40 °C, NBR for oil resistance), fabric ply count, and service life cycles, which for type 24/30 diaphragms often exceed 1 million cycles under FMVSS 121 / SAE J1469 duty profiles. Tapered roller bearings are graded by ABEC tolerance classes (ABEC-3 / ABEC-5 for truck axles), dynamic load rating C in kN, and bore sizes typically ranging from 20 mm to 140 mm. Air brake hose assemblies in this category are commonly qualified to SAE J1402 (hydraulic and air brake hose) or DOT FMVSS 106, with fittings conforming to SAE J1402 / J844 coupling standards.

Trade and Export Information - Hong Kong Metro Bearing And Automotive Limited

Hong Kong-based exporters of commercial vehicle brake and bearing components typically serve aftermarket distributors, OEM truck and bus assembly plants, and trailer manufacturers across Southeast Asia, the Middle East, Africa, and Central and South America. The HS subheadings cited in the catalogue (8708.30, 8708.31, 8708.40, 8708.93, 8708.94, 8708.99, 8482.20) are routinely subject to type-approval regimes in importing jurisdictions: ECE R13 (heavy vehicle braking) for the European Union and many UNECE-adopting countries, FMVSS 121 (air brake systems) and FMVSS 106 (brake hoses) for the United States, and GB 7258 (China's road vehicle safety specification) for the Chinese market. Buyers in these regions typically request test reports aligned with SAE J1469, SAE J1402, ISO 9001 quality management, and where applicable IATF 16949 for automotive quality systems. For the bearing line (HS 8482.20), tapered roller bearings exported from East Asian suppliers are commonly used in wheel end, transmission and differential assemblies, and buyers usually require ABEC tolerance documentation, dimensional conformance to ISO 355 (metric tapered bearings) or ANSI/ABMA Std 19.1, and material certificates confirming GCr15 / SAE 52100 chemistry. Packaging for this category typically follows export norms of 20 ft or 40 ft FCL container loads, with chambers and hubs palletized and strapped, diaphragms and rubber parts sealed in moisture-barrier bags, and bearings individually wrapped in anti-rust VCI paper inside cardboard cartons. Incoterms commonly observed in this trade lane include FOB Hong Kong, CFR and CIF to major ports such as Jebel Ali, Lagos, Santos, and Ho Chi Minh City. Hong Kong's role as a re-export hub means many shipments move under Hong Kong-issued certificates of origin with consolidated container loads.

Sourcing from Hong Kong Metro Bearing And Automotive Limited - Buyer Guidance

Before placing an order with this supplier, buyers should request chamber type numbers, stroke length, and rated pressure (8 bar) for each brake chamber, plus the diaphragm compound (EPDM vs NBR) and any SAE J1469 cycle-test documentation. For tapered roller bearings under HS 8482.20, ask for the ABEC tolerance class, dynamic load rating C in kN, bore and outside diameter in mm, and a material certificate confirming GCr15 / SAE 52100 steel. Air brake hoses and fittings (HS 8708.93 / 8708.99) should be qualified to SAE J1402 or the equivalent national standard, and buyers should confirm whether assemblies are supplied with or without fittings. Verification steps that materially reduce risk include requesting pre-shipment samples for dimensional checks against ISO 355 or manufacturer drawings, asking for a recent third-party inspection report (SGS, Bureau Veritas, or TUV), and confirming whether the supplier operates under IATF 16949 or ISO 9001, which are the quality management systems typically required by OEM truck and trailer buyers. Lead times for brake chambers and bearings from Hong Kong-based exporters generally run 30 to 60 days for standard type numbers and 60 to 90 days for non-standard or large-diameter bearings. MOQ varies by part: standard chambers and diaphragms are often available from one carton, while tapered roller bearings may carry a per-size MOQ. Confirm packaging specification (VCI anti-rust paper, palletization, container FCL vs LCL) and the requested Incoterm before issuing a purchase order.

What product categories does Hong Kong Metro Bearing And Automotive Limited supply?

The supplier lists 11 active products across six categories: automobile brakes and spare parts, pins, flanges, wheel rims and wheel hubs, bearings, and industrial valves and gauges. The brake line covers service and spring brake chambers for disc and drum brakes, diaphragms, hoses, fittings, and air valves, with tapered roller bearings and wheel hub units rounding out the catalogue.

Which HS codes apply to the brake and bearing products in this catalogue?

Brake chambers for drum brakes fall under HS 8708.30, spring brake chambers for disc brakes under HS 8708.31, air brake diaphragms under HS 8708.40, air brake hose fittings under HS 8708.93, service brake chambers for disc brakes under HS 8708.94, and air brake hoses under HS 8708.99. Tapered roller bearings are classified under HS 8482.20.

What materials are used in the brake chambers and diaphragms listed?

Service brake chambers for disc brakes use cast iron housings with steel pistons and EPDM rubber seals. Spring brake chambers use high-strength steel with e-coating finish. Drum brake chambers use steel housings with rubber diaphragms and carbon steel housings with high-tensile steel springs. Diaphragms are made from EPDM/NBR elastomer compounds with fabric reinforcement.

Which certifications and test reports should a buyer request for these brake components?

Buyers should request documentation aligned with SAE J1469 for brake chamber cycle testing, SAE J1402 or FMVSS 106 for air brake hoses, and ECE R13 or FMVSS 121 for system-level compliance. ISO 9001 or IATF 16949 quality management certification is typically expected for OEM truck and trailer programs.

What specifications matter most when sourcing tapered roller bearings from this supplier?

Key parameters include ABEC tolerance class (ABEC-3 or ABEC-5 for commercial vehicle use), dynamic load rating C in kN, bore and outside diameter in mm, and material confirmation of GCr15 chrome steel. Buyers should also request dimensional conformance to ISO 355 or ANSI/ABMA Std 19.1.

What is the typical MOQ and lead time for these products?

Standard brake chambers and diaphragms are often available from a single carton, while tapered roller bearings may carry a per-size MOQ. Lead times typically run 30 to 60 days for standard chambers and diaphragms, and 60 to 90 days for non-standard or large-diameter bearings, subject to confirmation with the supplier.

How are brake chambers and bearings typically packaged for export?

Brake chambers and wheel hubs are usually palletized and strapped for 20 ft or 40 ft FCL container loads. Diaphragms and rubber components are sealed in moisture-barrier bags, and tapered roller bearings are individually wrapped in VCI anti-rust paper inside cardboard cartons to prevent corrosion during transit.

Which Incoterms and shipping terms are common for these goods?

Hong Kong-based exporters of brake and bearing components typically quote FOB Hong Kong, with CFR and CIF also offered to ports such as Jebel Ali, Lagos, Santos, and Ho Chi Minh City. Shipments are usually consolidated in 20 ft or 40 ft FCL containers, with Hong Kong-issued certificates of origin.