S6006 Stainless Steel Bearing (30x55x13mm) Product Introduction

## Product Overview

The S6006 series deep groove ball bearing is a precision mechanical component with dimensions of **30mm bore, 55mm outer diameter, and 13mm width**. Manufactured from high-quality stainless steel, this product maintains all the mechanical properties of standard 6006 bearings while adding exceptional corrosion resistance, making it an ideal choice for humid environments, corrosive conditions, and applications requiring cleanliness.

## Standard Material and Customization Options

### Standard Configuration: AISI 420 Stainless Steel

This S6006 bearing model is **standardly manufactured using AISI 420 martensitic stainless steel**. AISI 420 is a martensitic stainless steel with relatively high carbon content. After appropriate heat treatment, it can achieve a hardness of HRC 50-55, offering:
- Good wear resistance
- Excellent corrosion resistance, suitable for general humid environments
- Good dimensional stability
- Cost-effective material selection

### Extensive Customization Material Options

Based on different application requirements, we offer customization services with the following stainless steel materials:

| Material | Characteristics | Suitable Applications |
|----------|-----------------|----------------------|
| **AISI 440 / 440C** | Highest hardness (HRC 58-62), best wear resistance, good corrosion resistance | High-load, high-wear applications, precision instruments |
| **AISI 304** | Austenitic stainless steel, excellent corrosion resistance, but lower hardness (non-hardenable) | Strong corrosive environments, low-load applications, food contact surfaces |
| **AISI 316** | Superior chemical corrosion resistance, excellent seawater resistance | Marine engineering, chemical equipment, pharmaceutical machinery |

## Technical Specifications

### Dimensions
- **Bore (d):** 30 mm
- **Outer Diameter (D):** 55 mm
- **Width (B):** 13 mm
- **Chamfer (r min):** 1.0 mm
- **Weight:** Approximately 0.11 - 0.12 kg

### Performance Parameters
- **Dynamic Load Rating (Cr):** 12,700 - 13,200 N
- **Static Load Rating (Cor):** 8,000 - 8,300 N
- **Limiting Speed (Grease Lubrication):** Approximately 8,000 - 9,000 RPM
- **Limiting Speed (Oil Lubrication):** Approximately 11,000 - 12,000 RPM

*Note: Specific values may vary slightly depending on the selected material and manufacturing tolerances*

## Structural Variants

The S6006 series bearings are available in various structural forms to meet different installation and usage requirements:

### S6006 (Open Type)
Without any seals or shields, suitable for:
- High-temperature environments (up to +150°C)
- Systems requiring external oil lubrication
- High-speed applications demanding extremely low rotational torque

### S6006-2RS (Double Rubber Sealed)
Equipped with double-sided nitrile rubber (NBR) contact seals, pre-filled with high-quality lubricating grease:
- Excellent dust and water resistance
- Maintenance-free design, ideal for locations difficult to lubricate regularly
- Operating temperature range: -30°C to +110°C

### S6006-2Z / ZZ (Double Metal Shields)
Equipped with double-sided stainless steel shields (non-contact):
- Prevents entry of large particle contaminants
- Extremely low frictional torque
- Suitable for high-speed operation
- Operating temperature range: -40°C to +150°C

## Engineering Considerations for Material Selection

Choosing the appropriate bearing material requires comprehensive consideration of the following factors:

### 1. Environmental Factors
- **General indoor use, occasional moisture exposure**: AISI 420 standard material is sufficient
- **Frequent washing, humid environments**: AISI 440C or 304 recommended
- **Seawater, strong acid/alkali environments**: AISI 316 must be selected

### 2. Load Characteristics
- **High loads, impact loads**: Prioritize high-hardness AISI 440C
- **Light loads, smooth operation**: Both AISI 304 or 316 are suitable

### 3. Temperature Requirements
- **High-temperature environments (>120°C)**: Open type or metal shield variants should be selected, paired with high-temperature lubricants

## Typical Application Fields

Thanks to the excellent characteristics of stainless steel materials and丰富的 customization options, S6006 bearings are widely used in:

- **Food Processing Machinery**: Conveyor belts, mixers, packaging equipment (AISI 304 or 316 recommended)
- **Medical Equipment**: Centrifuges, analytical instruments, surgical devices (AISI 440C recommended)
- **Marine Equipment**: Ship machinery, dock facilities, aquaculture (AISI 316 recommended)
- **Chemical Pharmaceuticals**: Reactors, mixers, filling equipment (AISI 316 recommended)
- **Outdoor Equipment**: Agricultural machinery, garden tools, cleaning equipment (AISI 440C recommended)
- **Precision Instruments**: Optical equipment, laboratory apparatus (AISI 440C recommended)

## Installation and Maintenance Recommendations

### Installation Points
- Apply force to the ring with interference fit during installation
- Avoid impact loads directly on the rolling elements
- Recommended shaft shoulder diameter not less than 35mm, housing shoulder diameter not greater than 50mm

### Maintenance Guidelines
- **Open bearings**: Regularly replenish lubricating grease according to the operating environment
- **Sealed bearings (2RS/ZZ)**: Pre-filled with grease at the factory, maintenance-free under normal usage conditions
- Storage environment should remain dry, with relative humidity <60%

## Quality Assurance

Our S6006 stainless steel bearings are manufactured strictly in accordance with the ISO 9001 quality management system, with precision grade reaching JIS Grade 0 (equivalent to ABEC 1 or higher). Each batch of products undergoes rigorous dimensional inspection and rotational accuracy testing, ensuring that every bearing delivered to our customers performs reliably.

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**S6006 30×55×13mm Stainless Steel Bearing** — Meeting diverse engineering challenges with multiple material options. Whether standard AISI 420 or customized AISI 440C, 304, or 316, we can provide the solution best suited to your application scenario.