Hefei Bearing Supply · ISO 9001
Industrial Bearings for OEM, Replacement and Custom Applications
Standard, OEM and customized bearings from a Hefei, China supplier: ball and roller bearings for machinery, motors, pumps and gearboxes. MOQ 50 pieces, worldwide delivery.
Products
Products
Ball and roller bearing types for standard supply, OEM programs and replacement sourcing.
Deep Groove Ball Bearings
Deep groove ball bearings for radial and moderate axial load at high speed - open, ZZ or 2RS, CN or C3 clearance, with designation interchange.
Angular Contact Ball Bearings
Angular contact ball bearings for combined radial and axial load in one direction - 15/25/40 degree contact angles, single or paired for spindle duties.
Self-Aligning Ball Bearings
Self-aligning ball bearings that compensate about 1.5-3 degrees of shaft deflection and misalignment - for long shafts under light to moderate radial load.
Cylindrical Roller Bearings
Cylindrical roller bearings for heavy radial load at moderate speed - separable NU / NJ / NUP designs for motor rotors, gearboxes and rolling mills.
Tapered Roller Bearings
Tapered roller bearings for combined radial and axial load with high stiffness - metric and inch series, supplied singly or as matched facing pairs.
Spherical Roller Bearings
Spherical roller bearings combining very high radial capacity with about 1-2.5 degrees of self-alignment - for vibrating screens, mills and mining duty.
Needle Roller Bearings
Needle roller bearings for high radial capacity in the smallest cross-section - drawn cup and solid types, with or without inner rings.
Thrust Ball Bearings
Thrust ball bearings carrying pure axial load between shaft and housing washers - single or double direction, for crane hooks and vertical pumps.
Capabilities
Key Capabilities
Bearing inspection, OEM customization, packaging and export handling under an ISO 9001 quality management system.
Quality and traceability
Trust is checked, not claimed
Every quotation is reviewed against product identity, dimensions and source evidence before it leaves Hefei. The facts below are owner-confirmed company facts, and the documents behind them are available on request.
- ISO 9001 quality management system
- Manufacturing and exporting since 2012 — 8,500 sqm facility, 85 staff
- 300,000 pieces monthly production capacity
- Tiered lead times: 5–10 business days for standard samples, 15–30 for bulk standard bearings, 30–60 for custom OEM bearings
Applications
Bearings by Application
Bearing selection by equipment and operating condition: motors, pumps, gearboxes, conveyors and more.
Bearings for Electric Motors
Bearing selection for electric motor shafts, rotor support and end-shield arrangements, with attention to radial load, speed, clearance and lubrication.
Bearings for Pumps
Bearing selection for centrifugal and process pump assemblies, where radial and axial load, speed, sealing and contamination control shape the specification.
Bearings for Gearboxes
Bearing selection for gearbox shafts and gear support, with combined load, stiffness, clearance, lubrication and alignment treated as application inputs.
Bearings for Conveyors and Material Handling
Bearing selection for conveyor pulleys, rollers and handling equipment exposed to radial load, contamination, misalignment and maintenance constraints.
Bearings for Food Processing
Bearing selection for food-processing equipment where washdown, corrosion resistance, sealing, lubrication and documentation requirements must be reviewed together.
Bearings for Wind Turbines
Bearing selection for wind-turbine drivetrain and main-shaft duties, requiring application-specific review of load, speed, alignment, lubrication and service conditions.
Bearings for Agricultural Machinery
Bearing selection for agricultural machinery exposed to variable loads, dust, moisture, shock and maintenance constraints.
Bearings for Mining and Vibrating Screens
Bearing selection for mining and vibrating-screen equipment where heavy load, shock, vibration, contamination and lubrication control are central to the specification.
Materials
Bearing Materials
Bearing steels, cages, seals and lubrication options matched to load, speed and operating conditions.
- Bearing steel: GCr15 / 52100 / 100Cr6 / SUJ2, with material certificates and incoming inspection
- Cages: pressed steel, machined brass or polyamide
- Sealing: open, ZZ metal shields or 2RS contact seals
- Lubrication: factory pre-greased (lithium, polyurea, high- or low-temperature, food-grade grease) or oil
- Precision classes P0–P2 and clearance classes C2–C5 within the standard tolerance envelope
- Bearings up to 800 mm outside diameter and 280 mm width
Why Us
Why Buy Bearings From Hefei Bearing Supply
A mid-sized industrial bearing supplier serving international OEM manufacturers, distributors and industrial buyers.
01
A quality system, not slogans
ISO 9001 production under batch traceability: bearing steel is verified against material certificates through turning, heat treatment, assembly and final inspection.
02
Engineering support built in
Selection support, bearing life calculation and OEM or non-standard design are handled by our own engineering team, from the AutoCAD drawing to the finished sample.
03
Procurement without surprises
Quotations state lead time and Incoterms (EXW–DAP); payment by T/T with a 30% deposit and 70% balance, or L/C for qualified orders.
04
One supplier, the full catalog
From deep groove ball bearings to spherical roller bearings, own production plus a vetted outsourcing network keeps every listed bearing deliverable, from standard sizes to drawing-based OEM parts.
Sourcing
Sourcing Bearings From China
Standard, replacement and custom bearings shipped worldwide from Hefei, Anhui, with moisture-resistant export packaging and OEM or private-label options.
- ✓Factory-direct supply from our own bearing works in Hefei, Anhui
- ✓Own production plus a vetted outsourcing network: the full catalog stays deliverable
- ✓Batch-traceable bearing steel from incoming inspection to final shipment
- ✓AutoCAD and SolidWorks drawings accepted for custom bearing design
How It Works
How an Order Works
From RFQ to delivery: a clear quotation and inspection process for every bearing order.
- Send your RFQ — Bearing model or type, bore, outside diameter and width, quantity, clearance and precision class, required seal and cage, plus application speed, temperature and load condition.
- Receive a quotation — A priced offer with lead time and Incoterms: standard samples in 5–10 business days, bulk standard bearings in 15–30, drawing-based custom OEM bearings in 30–60.
- Production and inspection — Your order runs through turning, heat treatment, grinding and assembly, with incoming bearing-steel checks and a final inspection before shipment.
- Delivery and support — Moisture-resistant export packaging and worldwide shipment; OEM or private-label options on request.
Knowledge
Bearing Knowledge
Engineering and procurement guides for bearing selection, replacement and sourcing decisions.
2RS Contact Seals vs ZZ Metal Shields: Choosing on Contamination, Speed, Temperature and Relubrication
Published sources agree on the direction: 2RS contact seals exclude fine dust and moisture better than ZZ shields. But the lip contact adds friction and heat and the rubber degrades at temperature, so 2RS is the protected choice only where speed and temperature stay inside the seal's margin. ZZ shields are non-contact and their speed and temperature limits are set by cage and grease, not the shield. The numeric penalties — limiting speed, friction torque, temperature rise, relubrication interval and price — are not published in comparable form, so you must obtain them from the bearing supplier before the RFQ.
Does a Higher ABEC/ISO Class Buy Longer Bearing Life, or Should the Premium Go to Lubricant, Cage, Steel and Cleanliness?
The ABEC/ISO class is a tolerance band for boundary dimensions and running accuracy only; it does not certify material, heat treatment, lubricant, cage, cleanliness or service life. A class premium is justified where the application needs tighter bore, OD or runout control, while life-driven spending belongs in the lubricant, cage, steel/heat-treatment and sealing items that the class does not govern. No source in this set gives a price premium per class or a quantified life gain from a class upgrade.
Angular Contact Bearing Pairing: Choosing DB, DF or DT and a Preload Route Before the RFQ
Single-row angular contact bearings carry axial load in one direction only. So a bidirectional thrust duty forces a paired arrangement: DB where moment rigidity and combined loads dominate, DF where misalignment tolerance or easier mounting with inner-ring interference matters. And DT only to raise one-directional axial capacity. Preload is most often set by ordering a factory-matched duplex set whose spacer rings already fix preload or axial clearance, while pairing non-matched bearings means measuring axial dimensions and grinding spacers to a target. What the published evidence does not settle is the per-size preload value, the precision grade, or any stiffness threshold that would decide DB against DF for your specific duty.
Ball vs Roller Bearings: When Load and Speed Decide, and When the Variant Does
Load and speed settle the family in most applications: ball bearings are the higher-speed, lower-friction, lower-cost choice, while roller bearings carry more radial load in the same envelope through line contact. The roller's load advantage compounds with load because L10 uses an exponent of 10/3 for roller against 3 for ball, but no source here gives a matched ball/roller rating pair. So the crossover load and the rpm where the roller stops paying for itself must come from catalogue data.
ABEC 1/3/5/7/9 vs ISO P0/P6/P5/P4/P2: Which Precision Class Goes in the Specification
The two scales map tier-for-tier — ABEC 1/3/5/7/9 against ISO Normal(P0)/P6/P5/P4/P2 — but the pairing is close rather than exact, because the limits are written by different bodies and are not identical at every size. Write the class as a tier on a named scale and state which system the supplier certifies to, then list clearance, noise, lubrication, material and cage as separate line items, because the class controls only boundary dimensions and running accuracy.
Start Your Inquiry
Send your bearing model, quantity and application for a quotation. MOQ 50 pieces, 12-month warranty.
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