6900RS / 61900-2RS / 6900-2RS Automotive Bearings , Deep Groove Bearing with Rubber Seals

6900RS, 61900-2RS and 6900-2RS are three interchangeable codes for the identical thin-section single row deep groove ball bearing with unified dimension 10×22×6mm. 61900 is the standard ISO serial designation, while 6900 is the simplified short model widely used by domestic manufacturers.

Suffix explanation:

• RS: Single side rubber contact seal
• 2RS: Double sides rubber contact seal

Ultra-thin wall cross-section design saves installation space for compact miniature equipment. Double-sided multi-lip contact rubber seals block fine dust, moisture and light oil mist inside workshop environments, locking internal high-speed lubricating grease to reduce maintenance frequency. Mirror superfinished raceway minimizes rotation friction torque, supporting stable ultra-high-speed continuous operation under light radial loads. Widely used for miniature DC motors, small cooling fans, textile tiny rollers, medical equipment, precision scanning instruments and miniature automation transmission assemblies.

Get a quote within 24 hours for your miniature equipment spare parts bulk order

Complete CAD dimension drawings and equipment fitment list can be provided upon request

1. Three model codes fully interchangeable with identical dimension, load and speed parameters; only naming standards differ between international ISO and domestic short serial marking.
2. Ultra-thin wall lightweight structure adapts narrow compact installation space of miniature motors and precision instruments, effectively reduce equipment overall volume and rotational inertia.
3. Upgraded multi-lip contact rubber sealing design for 2RS version, excellent dustproof and anti-moisture performance, prevent grease loss and fine particle intrusion leading to early bearing wear.
4. Mirror superfinished inner and outer raceway plus precision steel ball surface cut friction loss drastically, deliver low-vibration silent high-speed operation for long-hour uninterrupted equipment running.
5. Optimized CN standard internal clearance matches light-load high-speed working condition, avoid bearing locking caused by minor heat accumulation of miniature high-speed shafts.
6. Through-hardened GCr15 bearing steel with stable heat treatment provides outstanding anti-fatigue performance, withstand frequent start-stop alternating light loads of small motors.
7. Support customized clearance grades, high-speed low-viscosity special grease, OEM laser marking and neutral vacuum anti-rust packaging for global miniature machinery spare parts distributors.

Reduce precision miniature equipment downtime and lower overall production maintenance expenses

This 61900 series thin wall miniature sealed bearing is widely suitable for:

• Miniature DC drive motors, laptop cooling fans, small blower ventilation equipment
• Textile yarn guide rollers, slitting machine tiny transmission support shafts
• Medical analytical instruments, precision optical scanning and measuring equipment
• Small packaging machinery, robot miniature joint actuators, household small power tools
• Equipment repair shops and global miniature industrial spare parts wholesale suppliers

Ideal compact replacement bearing for overhaul of high-speed light-load precision miniature equipment

• Over 25 years professional manufacturing experience of 61900 series thin wall miniature deep groove ball bearings
• Strictly comply with ISO dimensional tolerance standards, 100% interchangeable with original 6900RS / 61900-2RS series bearings
• Complete production workflow covering steel forging, heat treatment, precision raceway grinding and finished noise & high-speed durability testing
• Sufficient spot stock for 10×22×6mm thin wall series, fast shipment for bulk miniature equipment spare parts orders
• Professional engineering team provides miniature shaft press-fit installation guidance and equipment model fitment verification
• Products exported to more than 50 countries, stable long-term supply for precision machinery aftermarket suppliers

We supply low-noise high-speed thin wall miniature bearings for compact automation and micro motor equipment

1. Raw bearing steel chemical composition and hardness inspection before processing
2. CNC inner/outer ring turning, raceway precision grinding and mirror superfinishing procedure
3. Constant temperature quenching & tempering heat treatment to stabilize internal material stress
4. Full finished product testing: internal clearance, rotation noise, rotational flexibility, high-speed endurance and light alternating load fatigue test
5. Full dimensional tolerance inspection for inner ring, outer ring and width plus visual appearance scratch check
6. Anti-rust oil coating + independent vacuum packaging to avoid rust during long-distance sea transportation

Every batch of thin wall miniature bearings passes full inspection before shipment to guarantee stable precision equipment operation

Looking for wholesale 6900RS, 61900-2RS and 6900-2RS thin wall miniature sealed bearings 10×22×6mm?
Send your inquiry to obtain:

• Competitive factory direct bulk unit price for single RS and double 2RS seal versions
• Complete micro motor & precision machinery fitment checklist
• Custom clearance grade, high-speed special grease and OEM laser marking packaging solutions
• Technical support for miniature shaft bearing press-fit installation and noise troubleshooting

Detailed dimension catalog and real-time stock availability can be checked upon contact

Q1: Are 6900-2RS and 61900-2RS completely interchangeable?

Yes, they represent the exact same thin wall bearing with identical 10×22×6mm dimensions, load and speed parameters. 61900 is standard ISO model number, 6900 is simplified short mark used by most domestic factories.

Q2: What is the difference between RS and 2RS suffix?

RS means single side rubber contact seal; 2RS means double sides rubber contact seals. Select 2RS for dusty/moist workshop environments, RS for relatively clean unilateral protection scenarios.

Q3: What failure phenomena require replacement of this miniature thin wall bearing?

Continuous high-frequency buzzing noise during high-speed rotation, miniature shaft obvious shaking, grease leakage from bearing side, slow rotation and jamming after long-term operation.