Stainless Steel Ball Bearing SS629ZZ SS629-2RS
Our 629ZZ/2RS stainless steel deep groove ball bearings combine corrosion resistance with two seal options: ZZ (double metal shields) for dust protection, 2RS (double rubber seals) for enhanced lubricant retention. Low-friction, high-precision, they fit small motors, medical devices, food machinery. Industrial-standard, reliable for harsh environments.
- Product Introduction
Basic Parameters
| Item | Specification |
|---|---|
| Bearing Model | SS629 ZZ / SS629 2RS |
| Inner Diameter (d) | 9 mm |
| Outer Diameter (D) | 26 mm |
| Width (B) | 8 mm |
| Weight | 0.0185 KG |
| Bearing Type | Deep Groove Ball Bearing |
| MOQ (Minimum Order Quantity) | 500 pcs |
| HS Code | 84821020 |
| Sample Service | Available |
| Number of rows | Single row |
| Rolling Element | Ball Bearing |
Reference Drawing
Technical Specs
| Item | Specification |
|---|---|
| Material |
420 Stainless Steel (Standard) Optional: 304 / 316 / 440 Stainless Steel |
| Precision Class | ISO P0 | ISO P6 | ISO P5 |
| Seal Type | SS629 ZZ / SS629 2RS |
| Operating Temp | -30℃ ~ +120℃ |
| Lubrication | Food Grade Grease (Standard) |
| Clearance | C0-Medium/C3-Loose/C2 |
Material Selection HAXB SS629 ZZ / SS629 2RS is available in multiple stainless steel grades:
- **420 (Standard)**: High hardness, good mechanical performance.
- **304**: Good corrosion resistance, economical, light duty.
- **316**: Excellent corrosion resistance, for marine & harsh environments.
- **440**: Highest hardness & wear resistance, premium bearing performance.
Application & Info
| Application Fields | Typical Equipment |
| Home Appliances | Electric fans, juicers, blenders, hair dryers, small electric motors. |
| Office & Electronic Equipment | Printers, scanners, small power tools, electric shavers. |
| Food & Beverage Machinery | Small food processing equipment, coffee machines, mixers. |
| Medical Equipment | Medical instruments, health care devices, precision testing equipment. |
| Hobby & Model Equipment | Remote control models, DIY toys, electric skateboards. |
| Marine & Outdoor Equipment | Small marine hardware, outdoor instruments, humid environments. |
Recommended fit tolerance:
Inner ring (9 mm bore) with shaft:H7 / k6 (transition fit or light interference fit)
Outer ring (26 mm OD) with housing:H7 / js7 (clearance fit or transition fit)
These fits ensure stable rotation, proper preload, and long service life for 629 stainless steel bearings.
Installation Notes
<1>Use uniform pressure to install the bearing; avoid striking the outer ring, inner ring, or rolling elements directly.
<2>Keep the bearing, shaft, and housing clean during installation to prevent dust or impurities from entering.
<3>Do not heat stainless steel bearings to excessively high temperatures.
<4>Apply appropriate lubrication before operation to reduce friction and extend service life.
<5>Ensure the bearing is mounted squarely and aligned correctly to avoid eccentricity or abnormal noise.
Product Images
Why Choose HAXB for SS629 ZZ / SS629 2RS?
HAXB SS629 ZZ and SS629 2RS stainless steel bearings are engineered for stable performance, long service life, and reliable operation in small precision equipment. We combine premium materials, strict quality control, and consistent manufacturing to meet the demands of industrial, commercial, and daily-use applications.
Paragraph 1:
We use high-grade stainless steel including 304, 316, 420, and 440 to provide strong corrosion resistance, high hardness, and good wear resistance. Each bearing is produced under stable process control to ensure consistent precision, low noise, and smooth rotation. The SS629 series supports radial and axial loads with low friction and long-term durability.
Paragraph 2:
HAXB SS629 ZZ features double metal shields for dustproof performance and high-speed running. SS629 2RS uses double rubber seals to effectively prevent lubricant leakage and block dust, moisture, and mild contaminants. Both structures are pre-lubricated and ready to use, suitable for household appliances, power tools, medical devices, food machinery, and outdoor equipment.
Paragraph 3:
Every HAXB SS629 bearing passes strict dimensional and performance inspection. We support mass production, fast delivery, and stable supply. Customization for materials, precision, and packaging is available. With professional technical support and cost-effective solutions, HAXB is your trusted partner for miniature stainless steel bearings.
Application:
SS629ZZ stainless steel miniature bearing features excellent corrosion resistance, hygiene and non-magnetic properties, ideal for medical instruments, healthcare devices and precision testing equipment. With ZZ shields, low noise, low friction and stable rotation, it ensures high precision and reliability. Compact, durable and easy to maintain, it is widely used in medical devices, precision instruments and testing systems.
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