6307 Bearing: Your Go-To Deep Groove Solution for Heavy-Duty Machinery
We've shipped thousands of 6307 bearings to operations across the US, Europe, and beyond. If you're sourcing for pumps, motors, or conveyor systems, this single-row deep groove ball bearing handles radial loads like few others. At 35mm inner diameter, 80mm outer, and 21mm width, it's a standard size that fits seamlessly into most OEM setups.
Running a production line? Procurement teams know the drill—downtime from bearing failure kills schedules. That's why our 6307s come from a factory dialed in on precision grinding and heat treatment. No shortcuts. We've seen importers cut lead times in half by switching to direct-from-China suppliers like us, skipping the middlemen markups.
What sets our version apart? Chrome steel construction with options for sealed 2RS or shielded ZZ configurations. Dynamic load rating around 33 kN, static up to 19 kN—numbers that hold up in real-world testing. And for those high-speed apps, the C3 clearance keeps things smooth under heat expansion.
Over the years, we've learned buyers want more than specs. They need assurance on consistency batch-to-batch. Our Hebei facility uses German-imported grinders and Japanese assembly lines to hit tolerances under 5 microns. Exporting to 50+ countries means we handle the logistics headaches so you don't—FCL containers optimized, palletized for US customs clearance.
Thinking OEM? We tweak these for your specs: custom greases, logos stamped, even hybrid ceramic upgrades for extreme environments. Talk to our engineer Adam—he's walked factory floors from Detroit to Dortmund.
Request Factory Quote for 6307 BearingQuick Navigation
Common Pitfalls When Sourcing 6307 Bearings
Sourcing bearings internationally? One wrong move and you're staring at rejects or delays. We've consulted with US importers who got burned by under-spec chrome steel—premature spalling after 6 months in agitators. Cheap seals fail first, letting contaminants chew up the races.
Lead times stretch if your supplier overloads on basic 6200 series and skimps on 6300s. We've seen 12-week waits turn into panic buys at 2x markup. Tolerance drift? That's when vibration creeps in, shortening motor life. And customs holds on non-ROHS compliant lots—avoidable with proper certs.
Procurement directors tell us: always verify radial runout under 8 microns. Check for proper cage design—steel or brass stamped, not plastic that warps. One Midwest fabricator switched after their 6307s grenaded under 5000 RPM; our replacements ran 20% cooler.
MOQ traps snag smaller ops. Some demand 1000pcs minimum, but we start at 50 for testing. Freight surcharges on partial pallets? We consolidate.
Our 6307 Bearing: Built for Reliability
Picture this: your conveyor seizing mid-shift. Our 6307 fixes that. Full complement of 8 balls, optimized contact angles for even load spread. We grease with lithium complex—stays put through 150°C peaks.
Sealed versions? Double rubber lips keep IP55 out. For cleanrooms, ZZ shields snap on clean. We've engineered these for automotive hubs, where imbalance means recalls. Buyers report 15-20k hours L10 life in pumps—real field data, not lab fluff.
Compared to stamped cages, our machined ones resist cracking under shock loads. And the bore chamfer? Eases press-fits without galling shafts.
- Open type: For custom lubing in gear reducers.
- 2RS sealed: Washdown duty, food processing.
- ZZ shielded: High-speed spindles.
- C3/C4 clearance: Thermal growth in hot housings.
Need hybrids? Si3N4 balls cut weight, boost speed limits to 20k RPM.
Discuss Custom 6307 Options6307 Bearing Technical Specifications
Here's the data sheet equivalent—pulled from our QA logs. All in metric, ABMA standards compliant.
| Parameter | Value |
|---|---|
| Bore Diameter (d) | 35 mm |
| Outer Diameter (D) | 80 mm |
| Width (B) | 21 mm |
| Dynamic Load (Cr) | 33.5 kN |
| Static Load (Cor) | 19.1 kN |
| Limiting Speed (Grease) | 9,500 RPM |
| Weight | 0.48 kg |
| Material | GCr15 Chrome Steel |
| Precision | P0 / ABEC-1 |
6308 bearing 6306 bearing 6309 bearing
Tolerances: ISO 492 class normal. Runout max 12 µm. Full certs available post-quote.
Where 6307 Bearings Excel in Operations
Electric motors top the list—those 10HP workhorses in HVAC. Fans, blowers too. In ag equipment, they spin under dust and vibration in harvesters.
Centrifugal pumps? Axial alignment's key; our chamfers prevent binding. Automotive: wheel hubs, alternators endure potholes. Textile machinery—high RPM, fine tolerances.
One scenario: conveyor idlers in warehouses. Misalignment kills lesser bearings; ours track straight for years. Marine winches? Corrosion-resistant grease options available.
Pro Tip: Pair with 35mm shaft stock, 0.02mm interference fit. Heat to 80°C for install.
Inside YIDI Motion: Why Trust Our Factory
HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD., doing business as YIDI Motion since 2020. 100 employees strong, 30% senior techs. We crank out ball screws, linear guides alongside bearings—synergies mean better QC.
Equipment? German grinders, Japanese auto-assemblers. Full spectrum: from rod forging to superfinishing. ISO 9001 certified—
. ROHS, REACH compliant for EU/US.
OEM/ODM is our wheelhouse. Stamp your part number. Custom polyamide cages for noise reduction. Exports hit Germany, USA, Canada yearly—50+ markets.
Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China. Phone: +86 18134111662. Email: adam@yidimotion.com.
Shipping 6307 Bearings Worldwide
USA bound? DHL for samples (3-5 days), sea FCL for volume (25-35 days to LA/Long Beach). We palletize 500pcs per, anti-rust paper wrapped. Incoterms: FOB/CIF your call.
Container math: 20ft holds 12 tons—fits 20k 6307s. Duties? HS code 8482.10, verify with your broker. We've smoothed holds with pre-checked docs.
Lead time: stock 1-2 weeks, custom 4-6. Samples free for qualified buyers.
Get Your Shipping Quote NowFeedback from Procurement Pros
John M., Purchasing Manager, Ohio Fabrications: "Switched to YIDI 6307s for our mixers. No failures in 18 months, half the price of SKF. Fast samples sealed the deal."
Maria G., Operations Texas: "OEM run with custom seals. Lead time beat promises. Bearings run cooler, extended service intervals."
Raj P., Distributor Ontario: "Volume order arrived pallet-perfect. C3 clearance spot-on for my spindles. Reliable partner."
Mike L., Engineer UK: "Tested against NSK—matched performance, better value. Logistics smooth despite Brexit nonsense."
Frequently Asked Questions on 6307 Bearings
Can I get 6307 bearings with custom packaging?
Yes. Bulk bags, boxes with your branding. Adds 1 week.
What's the MOQ for wholesale?
50pcs stock, 500 custom. Flexible for trials.
Do you offer free samples?
For serious buyers—cover freight. Email specs.
How to install 6307 bearing properly?
Arbor press max. Lube sparingly. Align housing bore to 80.025mm.
Maintenance schedule?
Regrease yearly in dusty spots. Monitor temp rise over 70°C.
About the Author
Adam Li, Export Director at YIDI Motion. 15 years in linear motion exports, from bearings to actuators. I've troubleshot failures on US factory floors and optimized supply chains for Fortune 500s. Connect: adam@yidimotion.com
Ready to Source Your 6307 Bearings?
No risk—get specs, pricing, or a sample plan today. We've got your back on quality and delivery.
YIDI Motion | +86 18134111662 | adam@yidimotion.com | Shijiazhuang, China
