Metric Stainless Steel Deep Groove Ball Bearings
Corrosion-resistant metric deep groove ball bearings for demanding environments, reliable rotation and extended service life.
Bore range: 10-50 mm
Design: Single-row deep groove
Metric Stainless Steel Deep Groove Ball Bearings Overview
Metric stainless steel deep groove ball bearings are single-row radial bearings designed for applications where moisture, washdown, chemicals or other corrosive conditions can shorten the life of conventional bearing steel. Their deep raceway geometry supports radial loads and moderate axial loads in either direction while maintaining smooth, low-friction rotation.
The large-sized stainless metric series covers 6000H, 6200H and 6300H designations with bore diameters from 10 mm to 50 mm, outside diameters from 26 mm to 90 mm and widths from 8 mm to 20 mm. Open, ZZ shielded, 2RS, 2RU and selected TTS configurations are available.
Key Features
- Stainless-steel construction improves resistance to moisture, washdown and corrosive service conditions.
- Deep raceway geometry carries radial loads and moderate axial loads in either direction.
- Low friction and stable running support electric motors, pumps and precision equipment.
- Open, ZZ shielded and sealed configurations suit different contamination and lubricant-retention requirements.
- 6000H, 6200H and 6300H series provide multiple cross-sections and load-capacity choices.
- Metric dimensions simplify integration into standard shafts, housings and replacement designs.
- J, RJ and TW retainer types are available according to bearing size and configuration.
- Selected models are also available in SAE52100 bearing steel without suffix H.
Design Variants
Open, shielded and sealed stainless-steel bearing designs
Open bearings: Provide low drag and easy relubrication in clean or internally protected assemblies.
ZZ shielded bearings: Metal shields help retain grease and reduce the entry of larger contaminants while preserving speed capability.
2RS / 2RU sealed bearings: Dual-side seals provide additional protection where moisture or contamination is present; seal type should be confirmed for the application.
Single-side closures: Single-shield or single-seal versions may use suffix Z, RS, RU or TS.
Suffix and Configuration Guide
| Configuration | Typical designation | Meaning |
|---|---|---|
| Stainless open | 6204H | H identifies the stainless-steel series |
| Double shield | 6204HZZ | Two metal shields |
| Double seal | 6204H-2RS / 2RU | Seal availability depends on model and duty |
| Selected TTS option | 6000H-TTS / 6001H-TTS | Available for selected 6000-series sizes |
| SAE52100 option | 6200 | Selected models omit H when supplied in SAE52100 |
Technical Capabilities
| Parameter | Series capability |
|---|---|
| Dimensional range | Bore 10-50 mm; outside diameter 26-90 mm; width 8-20 mm |
| Series | 6000H, 6200H and 6300H metric stainless series |
| Material designation | Suffix H indicates stainless steel; selected sizes can use SAE52100 without H |
| Closure options | Open, ZZ, 2RS, 2RU and selected TTS; single Z / RS / RU / TS by request |
| Load-rating range | Cr 3,860-29,800 N; C0r 1,570-18,610 N |
| Reference speed range | Grease 7,100-31,000 r/min; oil 8,500-36,000 r/min |
| Cage options | J, RJ and TW types, depending on bearing size |
| Ball complement | Ball diameters 4.762-12.700 mm; quantities vary by model |
| Operating considerations | Confirm corrosion medium, temperature, load, speed, lubricant and closure compatibility |
Representative Model
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Open designation | 6204H | Material identifier | H = stainless steel |
| Bore diameter d | 20 mm / 0.7874 in | Outer diameter D | 47 mm / 1.8504 in |
| Width B | 14 mm / 0.5512 in | Minimum radius rs | 1.0 mm / 0.0394 in |
| Shielded option | 6204HZZ | Sealed options | 6204H-2RS / 6204H-2RU |
| Dynamic load rating Cr | 10,910 N | Static load rating C0r | 5,360 N |
| Max. grease speed | 15,000 r/min | Max. oil speed | 17,000 r/min |
| Cage type | RJ, TW | Ball complement | 8 x 7.938 mm / 0.3125 in |
| Reference weight | 106 g (shielded ) | Product series | 6200H stainless metric series |
Applications & Selection
Typical Applications
- Food-processing and beverage equipment exposed to moisture or frequent cleaning
- Medical, laboratory, pharmaceutical and dental equipment
- Pumps, mixers, fans and electric motors in humid environments
- Marine, outdoor and washdown-duty equipment
- Packaging, conveying and light industrial automation systems
- Precision instruments and equipment requiring clean, corrosion-resistant components
Selection Notes
- Identify the actual corrosion medium, concentration, exposure time and washdown method before confirming the stainless material.
- Select open, shielded or sealed construction according to contamination, lubricant retention, torque and speed requirements.
- Confirm internal clearance and precision grade according to shaft fit, housing fit, temperature and running accuracy.
- Verify that seals, grease and cage material are compatible with temperature, chemicals and cleaning agents.
- Use the specified speed values as reference limits and apply appropriate reductions for load, temperature and sealing friction.
- For replacement selection, verify dimensions, material, load rating and closure rather than relying only on model cross-references.
Ordering Information
For quotation and technical confirmation, please provide the bearing designation or dimensions (d x D x B), quantity, stainless material requirement, closure type, precision grade, internal clearance, lubricant, operating speed, temperature range, load, corrosion medium and cleaning conditions.
