Sill Bearing
Sill Bearing
Optimized thin-section and specialty bearing configurations engineered specifically for high-speed assembly and humid coastal manufacturing environments.
Hai Phong, Vietnam’s third-largest city and the primary maritime gateway for the northern economic region, is experiencing unprecedented growth in high-tech manufacturing, automotive assemblies (such as VinFast), and consumer electronics production (housed in major hubs like Deep C, VSIP Hai Phong, and Trang Due Industrial Parks). As multinational corporations pursue "China+1" diversification strategies, the demand for precision engineered components within these facilities has skyrocketed.
The 6900 Series thin-section ball bearing plays a crucial role in these highly automated environments. Designed to handle moderate radial loads within tight space limitations, these bearings are critical for assembly line robotics, electric vehicle motor assemblies, and high-frequency power tools. SILL BEARING, utilizing superior GCr15 bearing steel, supplies these demanding applications, bridging advanced production capacities with local logistics advantages.
By coordinating production at our high-capacity Hangzhou Bay New Zone facilities and the upcoming Anhui TOPB expansion project, we ensure that OEMs and system integrators throughout the Hai Phong region receive certified, low-vibration components engineered to withstand local tropical humidity and high duty cycles.
Engineered for lightweight, space-constrained assemblies requiring low-friction performance.
| Bearing Designation | Bore Diameter (d) | Outer Diameter (D) | Width (B) | Cr Dynamic Load (kN) | Cor Static Load (kN) | Limiting Speed (Grease - RPM) |
|---|---|---|---|---|---|---|
| 6900 (ZZ / 2RS) | 10 mm | 22 mm | 6 mm | 2.70 | 1.27 | 30,000 |
| 6901 (ZZ / 2RS) | 12 mm | 24 mm | 6 mm | 2.89 | 1.46 | 28,000 |
| 6902 (ZZ / 2RS) | 15 mm | 28 mm | 7 mm | 4.36 | 2.26 | 24,000 |
| 6903 (ZZ / 2RS) | 17 mm | 30 mm | 7 mm | 4.62 | 2.55 | 22,000 |
| 6904 (ZZ / 2RS) | 20 mm | 37 mm | 9 mm | 6.40 | 3.70 | 19,000 |
| 6905 (ZZ / 2RS) | 25 mm | 42 mm | 9 mm | 7.00 | 4.55 | 16,000 |
Annual Capacity Increase (Anhui TOPB)
Quality Acceptance Target Rate
Comprehensive QC Protocol
High-Grade Bearing Steel Base
How our technical roadmap matches the supply chain requirements of international procurement teams operating in Vietnam.
Every bearing is crafted using premium GCr15 high-carbon chromium steel, heat-treated to achieve a hardness profile of HRC 60-64. This minimizes wear and extends life under persistent cyclic stress.
Located near Ningbo and Shanghai Ports, we offer swift transit times to Hai Phong Port. This allows local manufacturers to minimize warehousing costs and maintain lean just-in-time (JIT) production lines.
We supply specialized double-lip contact rubber seals (2RS) and high-performance synthetic lubricants designed to protect internal bearing components from the tropical climate of coastal northern Vietnam.
In the contemporary electronics and high-speed assembly manufacturing paradigm, the selection of component suppliers is no longer just about calculating unit cost; it is an exercise in mitigating operational risk. The industrial environment in the Hai Phong market, dominated by major foreign direct investment (FDI) electronics giants and domestic automotive factories, places demanding requirements on rotating components. These assemblies run round-the-clock, making bearing failures highly costly.
The 6900 series occupies a unique niche in mechanical design: the thin-section ball bearing. Unlike standard deep groove series (such as the 6200 or 6300), the radial and axial cross-sections of the 6900 series remain relatively constant even as the bore size increases. This provides several operational advantages:
To satisfy the quality requirements of global industrial buyers, we implement a strict five-step inspection protocol at our manufacturing facilities, which includes Hangzhou Bay New Zone and our new Anhui TOPB operations:
By maintaining strict control over steel quality, roundness, and precision groove geometry, SILL BEARING components deliver low-noise performance and long service life. This minimizes unplanned downtime in fast-paced production lines.
A comprehensive inventory of specialty ball and roller bearings configured for high load, automotive wheel-ends, water pumps, and automated linear guides.
A strategic industrial footprint optimized for shipping to Southeast Asian development nodes.
Established in the Hangzhou Bay New Zone, SILL BEARING FACTORY occupies a central position within China's coastal industrial belt. Strategically situated close to Shanghai and Ningbo Ports, our logistics route directly connects with Lach Huyen and Nam Dinh Vu ports in Hai Phong. This proximity allows us to service international assembly lines with standard ocean transit times of 5 to 7 days.
Our facilities specialize in designing, manufacturing, and analyzing deep groove ball bearings (ranging from 4mm up to 120mm bore diameters), tapered roller bearings, and customized non-standard geometries. To support rising demand from electronic assembly lines and robotic hubs across Vietnam, our new factory—Anhui TOPB IMP. & EXP. Co., Ltd.—is under construction. Once fully operational, this site will add an estimated $20 million in annual capacity, ensuring stable prices and fast delivery for long-term contract partners.
Addressing the specific concerns of procurement managers and design engineers operating in Vietnam.
The 6900 series features a thin-section design, allowing for weight savings and a small footprint. This makes them suitable for the automated picking arms, step motors, and electronic board assembly conveyors used by companies in Hai Phong's industrial zones (such as Trang Due and VSIP). They provide low frictional torque, which reduces power consumption and heat output in these systems.
High humidity can accelerate corrosion in standard bearings. We address this by offering:
1. Advanced double-lip rubber seals (2RS) that prevent moisture ingress.
2. High-grade synthetic greases containing anti-corrosion additives.
3. Optional AISI 440C stainless steel material configurations for environments with high moisture levels.
Shipments depart from Shanghai or Ningbo Ports and travel via direct sea lanes to Lach Huyen Deepwater Port in Hai Phong. Urgent requirements can also be shipped via air cargo from Ningbo Lishe (NGB) or Hangzhou Xiaoshan (HGH) airports directly to Cat Bi International Airport (HPH) or Noi Bai International Airport (HAN).
Yes. We support complete OEM and ODM services. We can laser-mark specific designations, brand names (including NETB, SILL, or customer-owned marks), and manufacturing batch codes directly onto the inner or outer ring faces. Custom packaging options can also be arranged.
Our standard manufacturing processes align with ISO P6 (equivalent to ABEC-3) and ISO P5 (equivalent to ABEC-5) tolerances. Radial clearances are adjusted based on the application requirements, with options including C0 (standard), C2 (tight), and C3 (loose/high speed) designations.
Whether you are designing medical instruments in Hanoi, maintaining assembly lines in Hai Phong, or building electric vehicles, SILL BEARING delivers high-performance components. Contact our engineering team today for technical catalogs, bulk pricing, and custom design approvals.
