6804 2RS Deep Groove Ball Bearing – Your Go-To for Precision Linear Motion
Sourcing the right bearing can make or break a production run. We've supplied thousands of 6804 2RS units to OEM lines across motors, pumps, and automation setups. Direct from our Hebei factory.
Table of Contents
- ➤ What Exactly is a 6804 2RS Bearing?
- ➤ Real-World Applications
- ➤ Key Specifications at a Glance
- ➤ Why Procurement Teams Trust Us
- ➤ Installation Realities from the Field
- ➤ Maintenance That Extends Life
- ➤ Shipping and Logistics Breakdown
- ➤ Customer Feedback
- ➤ FAQs for Buyers
- ➤ Next Steps: Get Your Quote
What Exactly is a 6804 2RS Bearing?
Let's cut to the chase. The 6804 2RS is a compact deep groove ball bearing designed for high-speed, low-friction operations. Inner diameter 20mm, outer 32mm, width just 7mm. Those "2RS" seals? Double rubber lips on both sides, keeping grease in and contaminants out. It's not flashy, but in a spindle motor or conveyor setup, it quietly handles radial and axial loads without drama.
I've handled procurement for these in OEM lines for years. Factories running 24/7 can't afford downtime from cheap knockoffs that shed balls after a few thousand cycles. Our version uses chrome steel (GCr15) with standard ABEC-1 precision – nothing exotic, just reliable. Heat-treated races ensure even load distribution, and the seals are nitrile rubber, good up to 120°C continuous.
Why does this matter for your ops? Think about vibration-sensitive apps like CNC routers or electric vehicle drivetrains. A mismatched bearing leads to premature wear, noise complaints from end-users, or worse – full assembly failure. We've seen importers burn through samples from low-tier suppliers before landing on something stable. That's where YIDI steps in.
Our Hebei plant, part of YIDI Motion since 2020, spits these out alongside ball screws and linear guides. 100 employees, 30% senior techs monitoring tolerances down to microns. Imported grinders from Japan and Germany mean consistent roundness – no oval bores that chew up shafts.
Market's shifting too. With supply chains tightening post-2022, buyers want China-direct without the Alibaba roulette. We export to 50+ countries: US machine shops, German automation firms, Japanese robotics outfits. Lead times? 15-30 days for stock, 45 for custom seals or stainless variants.
Operationally, these shine in radial loads up to 2.7kN dynamic, 1.37kN static. Speed rating hits 19,000 RPM unsealed equivalent, but seals drop it to 14,000 – still plenty for most servo motors. Grease is lithium-based NLGI 2, lasts 2-5 years in clean environments. Dirty shops? Plan swaps every 18 months.
Procurement tip: Always cross-check against ISO 15:2011 dims. We've had orders bounce back from picky EU buyers missing that cert mark. Ours carry it, plus RoHS for electronics integrators.
This isn't hype. It's what we've learned shipping pallets weekly. If your RFQ sheet lists 6804 2RS, you're likely scaling production or replacing a bottleneck supplier. Stick around – we'll cover specs, fits, and how to avoid common pitfalls.
Real-World Applications Across Industries
Bearings like the 6804 2RS pop up everywhere radial loads meet rotation. In stepper motors for 3D printers, they handle eccentricities without binding. Automotive? Wheel hubs or alternators, where seals fend off road grime.
Industrial automation loves them: XY gantries, pick-and-place arms. Compact size fits tight envelopes. Pumps – submersible or centrifugal – rely on the seals for water resistance. We've supplied batches for HVAC fans in US warehouses, where humidity plays havoc.
- Machinery: Spindles, conveyors. Reduces startup torque by 20-30% vs. unshielded.
- Electronics: Hard drive actuators, scanners. Quiet operation key.
- Power Tools: Drills, grinders. High RPM tolerance.
- Medical: Lab centrifuges, ventilators. Cleanroom grades available.
- Renewables: Wind turbine yaw drives (scaled up variants).
One ops manager from Texas shared how switching cut their motor rebuilds in half. Not magic – just better contamination control.
Key Specifications at a Glance
Need the numbers fast? Here's the datasheet essentials for our 6804 2RS.
Tolerances per ISO 492 P0. Custom P6 on request for high-precision gigs.
Why Procurement Teams Trust YIDI Motion
We're not just another exporter. YIDI Motion, est. 2020, focuses on linear motion: ball screws, guides, actuators, splines, bearings. Own factory in Shijiazhuang, Hebei. 100 staff, heavy on techs.
Equipment? German CNC grinders, Japanese superfinishers. Ensures ID roundness <2 microns. Exports hit Germany, USA, Canada, France, Japan – over 50 markets. Certifications: ISO 9001:2015, RoHS compliant, CE marked for EU.
OEM/ODM? Full suite. Matched sets with your shafts. Private labeling. MOQ flexible: 100pcs stock, 1000 custom.
Risk-averse buyers appreciate our one-stop: Quote to door. No middlemen markups.
Installation Realities from the Field
Press-fit these with an arbor tool – never hammer direct. Shaft tolerance h6, housing H7. Heat housing to 80°C for slip-in if tight.
Lube? Factory-packed good for 2000 hours. Re-grease ports every 5000 if accessible. Alignment critical: Misalign by 0.1° and loads spike 50%.
Warning: In dusty mills, seals clog fast. Pair with labyrinth housings. Vibration? Balance shafts post-install.
Maintenance That Actually Works
Run clean, they'll hit 20,000 hours easy. Listen for growl – early seal failure. Temp spikes over 90°C? Check grease.
Swap schedule: Clean ops 3-5 years; harsh 1-2. Ultrasonic cleaning for rebuilds. Always match OEM specs on re-install.
Shipping and Logistics Breakdown
From Shijiazhuang: Air for samples (DHL 3-5 days USA), sea for volume (20-35 days LA port). FCL 20ft holds 50k pcs.
Incoterms? FOB/CIF standard. Palletized, anti-rust paper. Duties? HS 8482.10, check your tariff.
Recent run: 10k to Texas, door-delivered 28 days. Tracking full.
What Buyers Are Saying
Mark T., Ops Manager, Texas Automation: "First batch of 6804 2RS arrived perfect. No rejects in 6 months on our gantry lines. Pricing beat SKF quotes. Will reorder."
Sarah L., Procurement, Ontario Machinery: "Quick samples helped qualify. Seals hold up in our pumps better than previous China source. Logistics smooth."
Raj P., Engineer, California Robotics: "Specs spot-on. Custom stainless option worked for our cleanroom. Lead time half what EU supplier promised."
Carlos M., Importer, Florida: "Volume order shipped fast. Quality consistent batch-to-batch. Good for our motor rebuild shop."
Frequently Asked Questions
Can you do OEM branding on 6804 2RS?
Yes. Laser etch your logo on OD. MOQ 5k pcs.
What's the price per unit for 10k pcs?
FOB around $0.80-1.20. Send RFQ for exact.
Do you offer free samples?
2-5 pcs stock yes, pay shipping. Custom no.
Lead time for stainless 6804 2RS?
45-60 days. Confirm via chat.
Ready to Source Your 6804 2RS Bearings?
Factory-direct. No risks. Talk engineer, get specs, pricing tailored.
HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. | 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang, Hebei, China
About the Author
Li Wei, Export Director at YIDI Motion. 12 years in linear motion supply, from Shenzhen factories to global OEMs. Hands-on with bearing tolerances and sea freight headaches.
