6901-2RS Bearing: Factory-Direct Deep Groove Sealed Precision
Sourcing reliable 12x24x6mm double-sealed ball bearings for OEM runs or replacement stock? We handle bulk orders from Hebei with fast USA shipping.
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Table of Contents
Inside the 6901-2RS: Engineering Basics
Procurement teams know the drill. You're scanning specs for a 6901-2RS bearing, likely because downtime hit on a spindle or actuator. This one's a deep groove ball bearing, 12mm ID, 24mm OD, 6mm wide. The "2RS" tags double rubber seals—contact type, keeping grease in and contaminants out.
Not all thin-section bearings handle radial loads the same. We machine these from chrome steel (GCr15), heat-treated to 58-62 HRC. Seals are nitrile rubber, good up to 120°C. Dynamic load rating sits around 2.3kN; static about 1kN. Vibration levels? V3 standard, but we can push V2 on request.
I've pulled these apart in the shop more times than I can count. The cages are stamped steel, two-piece for even ball spacing. No fancy ceramics here—keeps costs down for high-volume OEM. But preload? Minimal, to avoid binding in variable-speed apps.
Buyers from USA machine shops often ask about tolerances. P0 is default (ABEC-1 equiv), but ABEC-3 available. Radial clearance C0/C2. Runout? Under 8 microns typical. These aren't aerospace grade, but for linear motion or small motors, they deliver.
One thing trips importers: metric sizing mismatches. Confirm your shaft is 12mm exact—no slop. We've shipped thousands to North America without issues, but always double-check drawings.
Where 6901-2RS Bearings Thrive in Operations
Operations managers stock these for good reason. Fits tight in stepper motors, RC drones, 3D printers. We've supplied OEM lines for packaging machines—those high-speed indexers need sealed units to cut lube intervals.
Think automation arms. Linear guides pair well; ball screws too. In our factory, we test them under 10,000 RPM simulated loads. Holds up. HVAC fans? Smaller blowers use them. Even e-bike hubs, though some go ceramic for premium.
- Precision spindles in CNC routers
- Actuators for robotic grippers
- Medical pump drives—low noise key
- Textile winders, constant radial push
- Conveyor idlers, dust-prone spots
Distributors tell us Southeast Asia textile plants burn through them. USA importers? Often for aftermarket RC or hobby drone rebuilds, but bulk for assembly lines. One client runs 5,000-unit drone batches quarterly.
Pro tip: Pair with our ball splines for axial loads. Reduces whip in vertical apps.
Sourcing 6901-2RS: The Usual Pitfalls
Purchasing directors hate surprises. Alibaba listings promise "premium," deliver noisy fakes. Seals fail in weeks; balls pit from poor grinding. Lead times stretch to 90 days from unknown factories.
MOQ games too. Some demand 10k units minimum. We start at 100pcs for testing. Quality certs? Often photoshopped ISO badges. We've audited suppliers—many skip ultrasonic cleaning, leaving residue that scores races.
Logistics bites hard. Small parcels trigger duties; bulk misses consolidation windows. Vibration in sea freight? Seals pop if not packed right. USA buyers report 20% DOA from corner-cutting exporters.
Another: grade inflation. "ABEC-5" claims, but measure TIR—it's P0 at best. We stick to real metrics. No fluff.
Procurement advisors note: Always request grease samples. Ours is lithium-based, NLGI 2. Competitors skimp on polyurea.
What Sets Our 6901-2RS Apart
Experience shows in the details. Imported German grinders ensure mirror finishes—reduces startup torque by 15-20% vs. rough imports. Seals? Double-lip design traps lube better, extending runs to 5,000 hours.
Volume pricing kicks in early. 1k units? Under $1.50 each landed. OEM customization: special greases, logos stamped. We've tooled for US brands—no NRE fees over 5k pcs.
Testing rig here simulates your app: temp cycles -20 to 100°C, IP65 dust ingress. Pass rate? 99.8%. Failures traced to spec drift, fixed same day.
Compared to SKF 6901-2RS, ours matches load ratings, beats on price. NSK? Similar, but our seals flex better in shock loads.
| Feature | Our 6901-2RS | Typical Import |
|---|---|---|
| Seal Life | 5k+ hrs | 2-3k hrs |
| Torque (Nmm) | <2.5 | 3-5 |
| Price/1k | $1.20-1.50 | $2+ |
Detailed 6901-2RS Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bore Diameter (d) | 12 | mm |
| Outer Diameter (D) | 24 | mm |
| Width (B) | 6 | mm |
| Dynamic Load (Cr) | 2.27 | kN |
| Static Load (Cor) | 0.96 | kN |
| Max Speed (Grease) | 38,000 | RPM |
| Weight | 0.009 | kg |
| Material | GCr15 Steel | - |
Full datasheet on request. Tolerances per GB/T 307.1-2005.
Installation Realities for 6901-2RS
Engineers rush fits. Heat the housing to 80°C max—rubber seals melt over 150°C. Press-fit? Use arbor tool, not hammer. Misalignment over 0.01mm binds it quick.
Lube? Factory-packed lasts 2 years shelf. Post-install, no extra unless high-temp. Torque spec for snap rings: 0.5Nm. Run-in: 30min at 50% speed.
Common error: Over-greasing. Blows seals. We've seen returns from that. Vertical mounts? Orient shields down for drip.
- Shaft tolerance: h6
- Housing: H6
- Interference: 0-5 microns
- Tools: Induction heater preferred
Maintenance? Listen for growl—early pitting. Replace every 10k hours typical.
USA Shipping and Procurement Logistics
From Shijiazhuang to your dock: 25-35 days sea, DHL 5-7 days air. FCL 20ft holds 500k pcs. Duties? 3.3% HTS 8482.10. We handle docs—CO, packing list, fumigation.
Consolidation key for LCL. Mix with linear guides, ball screws. Insurance full value. Track via our portal.
Payment: 30% TT advance, balance sight LC. Samples prepaid. USA clients love PayPal under $500.
Risk? Currency flux. Lock USD rates. We've shipped to 50+ countries, zero losses.
Build Shipping PlanYIDI Motion: Our Factory Capabilities
100 staff, 30% seniors. German/Japanese CNC grinders, auto assembly lines. 1M bearings/month capacity. ISO 9001:2015 certified.
OEM/ODM full suite. Custom seals, greases. Exports to Germany, USA, Japan. One-stop linear motion: bearings to modules.
Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang, Hebei, China.
Phone: +86 18134111662 | Email: adam@yidimotion.com
What Buyers Say About Our 6901-2RS
Mike R., Procurement Mgr, Texas Automation"Switched from AliExpress. These run quieter, no leaks after 6 months. Landed price beat SKF. Samples arrived DHL fast."
Sarah K., Supply Chain Lead, Ontario"Bulk order of 5k for drone OEM. Perfect fit, certs legit. Sea freight organized, under budget."
Raj P., Operations, Mumbai Machinery"Tested vs. local—ours last longer. OEM stamping done right. Support responsive."
"Low torque ideal for servos. No vibration issues. Will reorder."
6901-2RS Buyer FAQs
MOQ and pricing?
100pcs min trial. $1.80/ea under 1k; drops to $1.20 at 10k+. Volume quotes same day.
Lead time for USA?
Stock ships 3 days. Production 15-25 days. Air express 7 days door.
OEM customization?
Yes—special grease, packaging, markings. No setup fee over 5k.
Return policy?
30 days unused. Production defects? Free replace + shipping.
Match SKF/NSK specs?
Interchangeable dimensions, equivalent performance. Tested side-by-side.
Ready for 6901-2RS Supply?
Factory reliability, global shipping. Cut risks, save 30-50% vs. brands.
Talk to Export Team NowHEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. | +86 18134111662 | adam@yidimotion.com
Written by Adam Li, Export Director, YIDI Motion
6901-2RS Bearing Wholesale Supplier | 12x24x6mm Sealed Deep Groove | YIDI Motion
Meta Description: Factory-direct 6901-2RS bearings. High-quality, double-sealed, OEM options. Bulk pricing, fast USA shipping. Specs, samples, quotes available.
