61704 Bearing: Reliable Thin-Section Deep Groove Ball Bearings for Precision Machinery
Meta Description: Source high-quality 61704 bearings direct from factory. Precision thin-section deep groove ball bearings, 20x32x7mm, chrome steel construction. Ideal for OEM automation, robotics. Fast global shipping, competitive pricing. Request quote today.
Working in procurement for industrial equipment means you're always hunting for parts that deliver without drama. The 61704 bearing shows up often in specs for compact machinery where space is tight but loads can't be ignored. It's a thin-section deep groove ball bearing, sized at 20mm inner diameter, 32mm outer, and just 7mm wide. Not flashy, but it gets the job done in high-speed setups.
We've shipped thousands to operations across the US, Europe, and Asia. Buyers come back because these hold up under radial loads up to 3.4 kN dynamic, 1.6 kN static, per standard ratings. No guesswork—straight from ISO-defined dimensions. Factories like ours grind these on German-imported CNC machines, ensuring concentricity that keeps vibration low even after months of runtime.
Picture a packaging line in a Midwest plant. Rollers spinning at 5000 RPM, product flowing non-stop. Swap in cheaper alternatives, and you're chasing downtime from brinelling or spalling. We've seen it. That's why importers stick with proven SKF-equivalent profiles like the 61704. It's not about the lowest price; it's minimizing total cost over the machine's life.
In cross-border deals, logistics bite hard. A container of these weighs light—hundreds per pallet—yet customs loves nitpicking HS codes (8482.10). We handle that, with full paperwork for seamless clearance. Lead times? 7-15 days to major ports, depending on volume. No endless waits that tie up your inventory.
Engineers specify the 61704 for its balance. Thin profile slips into tight housings without redesigns. Open design means grease-packed once, runs clean. We've customized cages in nylon or brass for specific RPM needs—ODM requests roll off our line. Procurement teams appreciate the data sheets matching ABEC-1P precision, tolerances holding H6 inner, J6 outer.
Markets shift, but demand for compact bearings climbs with automation. Robotics arms, medical devices, textile spindles—all lean on these. US buyers report fitting them into legacy equipment upgrades, cutting retrofit costs. One Midwest fabricator told us they replaced bulkier 6204s, shaving housing weight by 20% without load loss.
Quality isn't hype. Our chrome steel starts from GCr15 billets, vacuum degassed for purity. Heat treat to 58-62 HRC, then superfinishing. No cheap AISI 52100 knockoffs that pit early. Certifications back it: ISO 9001, RoHS compliant, REACH registered. Test reports on request, with Weibull analysis for failure prediction.
Procurement pitfalls? Overlooking radial vs. axial capacity. The 61704 handles light thrust—about 20% of radial—but pair it right. Misalign by 0.02mm, and life drops fast. We advise on that in quotes. Bulk buys start savings at 500 units; OEM runs scale better.
Enough intro—let's dive deeper. You'll see why this bearing fits your workflow.
Table of Contents
- Technical Specifications
- Common Procurement Risks with Thin-Section Bearings
- Why Choose Our 61704 Bearings
- Real-World Applications
- Our Manufacturing Capabilities
- Global Shipping & Logistics
- Installation & Maintenance Tips
- Buyer’s Guide to Sourcing 61704 Bearings
- Customer Feedback
- Frequently Asked Questions
- Get Your Quote
61704 Bearing Technical Specifications
Exact specs matter in engineering. Here's the breakdown for the standard 61704 deep groove ball bearing.
| Parameter | Value |
|---|---|
| Bearing Number | 61704 |
| Type | Thin-Section Deep Groove Ball Bearing |
| Dimensions (d x D x B) | 20 x 32 x 7 mm |
| Dynamic Load (Cr) | 3.40 kN |
| Static Load (Cor) | 1.60 kN |
| Limiting Speed (Grease) | 22,000 RPM |
| Material | GCr15 Chrome Steel (AISI 52100 equiv.) |
| Cage | Steel or Nylon |
| Precision Class | ABEC-1 / P0 (ABEC-3 optional) |
| Weight | 0.028 kg |
| Standards | ISO 15:2011, DIN 625 |
These ratings hold for standard conditions. High-temp variants push to 150°C with special grease.
Procurement Risks When Sourcing 61704 Bearings
I've managed exports long enough to spot patterns. Buyers rush low bids, then face callbacks.
- Undersized hardness—pits under load. Test Rockwell yourself.
- Fake origins. "Made in China" doesn't mean poor; verify suppliers.
- Ignoring grease type. Wrong lube seizes at speed.
- Overlooking seals. Open bearings like 61704 need housing protection.
- Volume mismatches. Small lots cost more per unit than pallets.
One US importer lost a week swapping brinelled stock. Cost? Triple the bearing price in labor. Vet with CMM reports.
Risk drops with direct factory ties. We skip middlemen.
Our 61704 Bearing: The Reliable Solution
Not all 61704s equal. Ours stand out operationally.
Superfinished races cut friction 15% vs. ground norms. Means cooler runs, longer L10 life—over 10 million turns at 50% load.
Custom options: Shielded (2Z), sealed (2RS), or flanged. Nylon cages quiet high-RPM apps.
| Feature | Our 61704 | Generic |
|---|---|---|
| Surface Finish (Ra) | 0.08µm | 0.15µm |
| Vibration (Z4) | Yes | Z3 |
| Noise Level | Low | Medium |
| Customization | OEM/ODM | Limited |
6306 bearing 6206 bearing 6307 bearing
Procurement pros note the edge in uptime.
Applications for 61704 Bearings
Compact. Versatile. Fits where bulkier 6004s won't.
- Automation: XY tables, pick-place robots.
- Packaging: Conveyor idlers, flap guides.
- Textiles: Spindle supports, tension arms.
- Medical: Pump rotors, scanner gantries.
- HVAC: Fan shafts, damper linkages.
- Aerospace prototypes: Light actuators.
In robotics, the thin wall enables slimmer arms—critical for payload reach.
One caveat: Max misalignment 0.5°. Shim housings flat.
YIDI Motion Factory Strengths
HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD., under YIDI Motion banner since 2020. 100 staff, 30% senior techs. Imported DMG Mori grinders, Okuma lathes from Japan/Germany.
Bearing line runs 50,000 units/month. Full vertical integration: Forging to packing.
- ISO 9001:2015 certified.
- RoHS, REACH compliant.
- Exports to 50+ countries: US, Germany, Japan.
- OEM for linear motion giants.
Contact: +86 18134111662 | adam@yidimotion.com | Shijiazhuang, China.
Shipping & Logistics for Global Buyers
US West Coast: 25 days sea, 5-7 air. FCL 20ft holds 40,000 pcs.
Packing: Vacuum bags, cartons, pallets. Moisture-proof.
Incoterms: FOB, CIF standard. Duties? HS 8482.10.0020.
Track via seaexplorer. Samples ship DHL next day.
Pro tip: Consolidate with ball screws for savings.
Installation and Maintenance Insights
Press-fit inner, freeze outer for easy seat. Arbor max 0.01mm runout.
Grease: Lithium NLGI 2, 30% fill. Relube interval 2000 hours.
Watch for fretting—use Loctite on shafts if vibration heavy.
Failure signs: Growling noise, heat rise. Swap proactively at 80% L10.
Short tip: Heat to 80°C max for expansion fit.
Procurement Guide: Sourcing 61704 Bearings Right
- Match load/speed to catalog ratings.
- Request 3.1 certs, spectro analysis.
- Sample first—test in your rig.
- Negotiate MOQ, tooling for custom.
- Lock price 12 months, forex hedge.
Distributors markup 40%. Direct saves that.
What Buyers Say About Our 61704 Bearings
Mark T., Procurement Mgr, Ohio Automation: "Switched from EU supplier. YIDI's 61704s run quieter, no early wear after 6 months. Pricing beat quotes by 25%. Solid partner."
Sarah L., Ops Director, Texas Packaging: "Needed 5k units fast. Delivered on time, perfect fit in idlers. Logistics smooth—will reorder for next line."
John R., Engineer, California Robotics: "Thin profile ideal for our arm. Vibration specs spot-on. Custom nylon cage request handled quick."
Carlos M., Importer, Florida: "First bulk order. Quality matches SKF samples. Great comms with Adam—made import easy."
FAQ: 61704 Bearing Essentials
Q: What's the max temp for 61704?
A: 120°C standard grease; 150°C with HT lube.
Q: Sealed version available?
A: Yes, 61704-2RS. Rubber seals, contact type.
Q: Minimum order?
A: 100 pcs stock; 500 for best rate.
Q: Can you match NSK dims?
A: Exact interchange. Data sheet proves.
Q: Lead time to USA?
A: 7 days samples, 15-25 production/sea.
Ready for 61704 Bearings?
Get factory-direct pricing, samples, or engineering consult. No obligation.
HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. | Shijiazhuang, China | Exports Worldwide
Written by Adam Li, Export Director, YIDI Motion.
With 12 years in linear motion exports, specializing in precision bearings for US markets.
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Last updated: October 2026 | Serving procurement worldwide.
