S6200RS Stainless Steel Deep Groove Ball Bearing

Inner diameter d = 10 mm
Outer diameter D = 30 mm
Width B = 9 mm
Material: AISI 440C stainless steel (rings and balls); cage typically made of stamped steel or nylon
Seals: Contact-type rubber seals; effectively exclude dust and water while retaining internal grease
Dynamic load rating: approximately 5 kN; static load rating: approximately 2.4 kN
Reference limiting speed: Typically around 18,000 r/min for sealed versions; higher speeds are possible for open or metal-shielded versions.

These figures were not simply copied from a brochure; they were obtained by running each batch on load-testing machines and speed test rigs prior to shipment.

Standard 6200 series bearings use GCr15 steel; while cost-effective and offering slightly higher load capacity, they are prone to rusting when exposed to moisture, acids, alkalis, or environments requiring food-grade standards. By switching the material to 440C, the S6200RS model offers significantly improved corrosion resistance-further enhanced by surface passivation making it ideal for coastal equipment, wash-down lines, medical devices, small outdoor motors, and food processing machinery. The rubber seal retains the lubricant, extending routine maintenance intervals and reducing the frequency of downtime for bearing replacements.

On the production line, we pay special attention to three key aspects:
1. Steel ball sphericity and raceway surface finish directly determine operating noise and vibration levels; the S6200RS is required to meet low-noise standards.
2. If the seal lip is too tight, it increases frictional torque and heat generation; if too loose, it allows dust ingress. Sealing force is a critical control point during assembly.
3. Internal clearance generally follows the C0 or C3 standard, with fine adjustments made based on the specific fit between the customer's shaft and housing bore.

Applications include small motors, water pumps, fans, conveyor equipment, agricultural machinery, medical devices, food processing equipment, precision instrument shafts, and power tools. The S6200RS serves as a direct replacement for standard 6200 series bearings in applications requiring corrosion resistance, dust-proof sealing, moderate speeds, and a primary focus on radial loads; its mounting dimensions are fully compatible.

1. Verify the interference fit between the shaft diameter and the bearing's inner diameter; an excessively tight fit eliminates internal clearance, while an excessively loose fit leads to slippage.
2. An H7 tolerance is recommended for the housing bore, while k5 or m5 tolerances are advisable for the shaft.
3. During installation, strictly avoid striking the outer or inner rings directly; use a specialized sleeve to press-fit the bearing, ensuring the force is applied to the ring being fitted.
4. If the operating temperature consistently exceeds 80°C, we recommend consulting us in advance to switch to high-temperature grease.
5. For applications requiring food-grade standards or cleanliness, we offer versions filled with food-grade grease.

Our factory's pre-shipment inspections for the S6200RS cover dimensions, internal clearance, rotational smoothness, seal integrity, material spectral analysis, and salt spray sampling. Each batch comes with corresponding inspection records to facilitate customer traceability.

If you need samples for testing, a bulk quote, or specific load-life curves and noise reports, simply let me know your operating conditions (rotational speed, load, ambient temperature, and exposure to water or chemical media). I can verify compatibility based on these actual conditions or recommend a more suitable internal clearance and lubrication setup.

The S6200RS is not a high-end specialty bearing, but rather a solid, standard product that effectively combines stainless steel corrosion resistance, sealed protection, and standard dimensions. Use it in the right application, and it offers peace of mind; use it in the wrong one, and even the best bearing goes to waste.

Please feel free to contact me if you have any questions:
Email: jackengineer@blhbearing.com
WhatsApp: +8613760352799