51105 Bearing: Precision Thrust Ball Bearings for Heavy Axial Loads
Sourcing reliable 51105 thrust bearings? Get OEM specs, factory-direct pricing, and global shipping from Hebei YIDI.
Request Quote TodayQuick Navigation
Export Manager, Hebei YIDI Import & Export Trading Co., Ltd.
Over 12 years in linear motion components. Handled 500+ OEM bearing orders for US and EU clients.
Procuring the right 51105 bearing isn't just about matching dimensions. It's about ensuring it holds up under real axial loads in your machinery without seizing or wearing prematurely. I've seen too many purchasing managers chase the lowest price only to face downtime weeks later.
In machine tools, pumps, or automotive assemblies, a subpar 51105 thrust ball bearing can turn a smooth operation into a costly headache. Dimensions are standard—25mm bore, 42mm OD, 11mm height—but quality varies wildly across suppliers. Cheap imports often skimp on steel purity or heat treatment, leading to brinelling under shock loads.
At YIDI Motion, we've supplied thousands of these since 2020. Our 51105 bearings use GCr15 chrome steel, precision-ground for P0 tolerances, and separated by steel cages for high-speed stability. They're built for single-direction axial loads up to 20kN dynamic, fitting snugly in vertical shafts or thrust collars.
Think about your setup. If you're running a CNC lathe or conveyor system, misalignment or contamination kills bearings fast. We've engineered ours with tighter radial runout—under 8 microns—to minimize that risk. And for exporters or distributors, our MOQs start low, with palletized packing for sea freight.
One importer from Texas told me last month: "Switched to your 51105 after three failures from a Taiwan source. No issues in six months, and half the noise." That's the feedback we chase. Not hype, just results from field use.
Let's break it down operationally. Thrust ball bearings like the 51105 excel where radial loads are minimal, but axial forces dominate—like propeller shafts or screw drives. The deep groove raceways handle thrust from one direction efficiently, separating balls to prevent skewing.
Material matters here. GCr15 isn't exotic, but our vacuum degassing process cuts inclusions, boosting fatigue life. Paired with phosphate anti-corrosion coating, they survive humid storage or washdowns. We've tested batches to ISO 281 standards, hitting L10 lives over 5 million revolutions at rated loads.
Procurement teams often overlook cage design. Pressed steel works for most, but in high-vibration apps, we offer machined brass upgrades. It's not standard, but ask— we've customized for US forklift makers.
Global trade adds layers. Duties, lead times, certifications. Our 51105s carry RoHS compliance and ship CE-marked if needed. From Shijiazhuang, we hit US ports in 25-35 days via consolidated LCL.
If you're comparing suppliers, check preload specs. Factory-set at 50-100N, ours avoid excessive friction that burns energy. Engineers appreciate that in precision apps.
We've packed this page with what buyers need: specs, risks, logistics, and straight talk. Skip the fluff. Ready to spec yours? Talk specs with our team.
Over the years, I've audited dozens of bearing lines. Common pitfalls? Overlubrication leading to drag, or ignoring shaft tolerances. A 51105 demands h6 bore fits typically. Deviate, and you'll chatter.
In OEM runs, consistency rules. Our CNC grinders from Japan hold 1-micron repeatability. No batch-to-batch variance that plagues smaller factories.
For distributors, markup potential shines. Retailers price these at $15-25 each; we quote $4-7 in volume, FOB Tianjin. Factor in our 1% defect rate, and ROI stacks up.
Enough intro—let's hit the risks you're probably facing right now.
Common Procurement Risks with 51105 Bearings
Buying 51105 bearings online? Watch for these traps. I've consulted on failed orders where buyers got burned.
- Undisclosed Tolerances: P6 advertised as P0. Leads to vibration in spindles. Demand ABEC-1 certs.
- Fake Materials: Low-carbon steel passed as GCr15. Fails under 15kN loads. Test hardness—HRC 60 min.
- Poor Packaging: Rust in transit. We use VCI bags and wooden crates.
- Long Lead Times: 90+ days from some Asian mills. Ours: 15-30 days stock, 45 max custom.
- No Traceability: Batch numbers missing. Critical for warranties.
One Midwest distributor learned hard—$10k loss on 5k units that flaked after install. Vet suppliers like you'd audit parts.
Avoid by requesting samples. We send 5-10pcs free for testing. Grab yours.
Our 51105 Bearing Solution: Built for Reliability
No gimmicks. Our 51105 thrust ball bearings solve axial load issues with proven engineering.
Key edges over generics:
- Chrome steel rings and balls, hardened to 58-64 HRC.
- Steel cage for speeds to 6500 rpm.
- Grease-packed with lithium complex—up to 5000 hours L50 life.
- Runout <7μm for quiet operation.
- Load ratings: Dynamic 20.3kN, Static 36kN.
Beats competitors on fatigue resistance by 20-30% in our tests. Not magic—better forging and grinding.
Pro Tip: For vertical apps, pair with angular contact for duplex thrust. We've spec'd hybrids for pumps.
51105 Bearing Technical Specifications
| Parameter | Value |
|---|---|
| Bore Diameter (d) | 25 mm |
| Outer Diameter (D) | 42 mm |
| Height (T) | 11 mm |
| Dynamic Load (C) | 20.3 kN |
| Static Load (C0) | 36 kN |
| Speed Limit (Grease) | 6500 rpm |
| Weight | 0.046 kg |
| Tolerance Class | P0 (ABEC-1) |
| Cage Material | Steel |
52205 bearing 6310 bearing 61911 bearing
All per DIN 625 / ISO 199 standards. Custom tolerances available.
Where 51105 Bearings Thrive in Practice
These aren't lab queens. They're in the field daily.
- Automotive: Steering columns, clutch thrust.
- Machine Tools: Vertical spindles, ball screws.
- Pumps/Compressors: Axial impellers.
- Conveyors: Idler supports under thrust.
- Marine: Prop shafts (with seals).
In a recent OEM run for a Florida pump maker, 51105s cut deflection by 15% vs. old stock. Simple swap, big win.
Wet environments? Add seals— we offer 51105 variants.
YIDI Factory: Your 51105 Bearing Source
HEBEI YIDI IMPORT AND EXPORT TRADING CO., LTD. (YIDI Motion), est. 2020. 100+ staff, 30% senior techs. German/Japanese CNC grinders ensure micron precision.
Exports to 50+ countries: USA, Germany, Canada. Products: Bearings, ball screws, linear guides.
Certifications:
- ISO 9001:2015
- RoHS Compliant
- CE Marked
One-stop: From raw steel to packed pallets. Tour our line virtually.
Global Shipping and Lead Times
Shijiazhuang to worldwide. FOB Tianjin/Xingang.
| Destination | Sea (LCL) | Air |
|---|---|---|
| USA East Coast | 30-40 days | 7-10 days |
| USA West Coast | 25-35 days | 5-8 days |
| Europe | 25-35 days | 5-7 days |
Min order 100pcs. Pallet qty: 4000pcs/20ft container. Duties? We advise HS 8482.10.
Installation and Maintenance Insights
Press-fit carefully. Use arbor press, no hammer. Align housing bore to H7.
Lube: NLGI 2 grease, initial fill 30%. Relube every 2000 hours or quarterly.
Warning: Overpreload causes spalling. Monitor temp <80°C.
Many skip shaft fillet radii—minimum 0.6mm or balls dig in.
OEM/ODM for 51105 Bearings
Custom cages, logos, packaging. MOQ 1000pcs. Full tooling if needed.
Past projects: Branded for US conveyor firm, brass cage for Euro pump.
Buyer Feedback on Our 51105 Bearings
John M., Procurement Mgr, Texas Machinery"Solid upgrade from AliExpress junk. Quiet, no failures in 4 months on lathes. Lead time spot on."
Elena R., Ops Director, Ontario Pumps"OEM batch arrived perfect. Tested loads—exceeded specs. Good comms with export team."
Mike T., Distributor, California"Volume pricing beat SKF quotes. Packaging survived ocean trip. Will reorder."
"Fit my thrust collar exact. Low drag improved efficiency. Samples were free—smart move."
51105 Bearing FAQs
Can I get 51105 bearings with seals?
Yes, optional rubber seals for dusty/wet apps. Add 2mm to width.
What's the MOQ?
100pcs stock, 500 custom. Flexible for trials.
Do you offer samples?
Free for qualified buyers, shipping paid.
Compatible with SKF 81105?
Interchangeable dimensions and loads.
Lead time for 10k pcs?
45 days max, with batch testing.
Ready for Your 51105 Bearing Quote?
Factory-direct. No middlemen. OEM ready.
Phone: +86 18134111662
Email: adam@yidimotion.com
Address: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China
Full Contact Page
Or request free samples / OEM discussion.
