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DESCRIPTION

• Overview
• Product Description
• Main Products
• Company Profile
• Company Advantage
• Certifications
• Packaging & Shipping
• Packing & Delivery
• FAQ

Overview

Basic Info.

Model NO.	7214
Separated	Unseparated
Rows Number	Single
Material	Bearing Steel
Product Model	7200 Series
Cage	Ta (Phenolic Resin Cage), Tn (PA46 Cage)
Seal	2rz, Open Type
Accuracy	P5, P4, P4a, P2
Bearing Arrangement	Su,Db,Dt,Df,Du,Tbt,TFT,Tt,Qbc,Qfc,Qt......
Preload	EL (Extra Light), L (Light), M (Medium), H (Heavy)
Transport Package	Single Box, Carton Box, Wooden Case
Trademark	HBB
Origin	Harbin
HS Code	84821030

Product Description

Product Description

HBB angular contact ball bearings are precision rolling bearings engineered to withstand combined radial and unidirectional axial loads. Featuring an optimized contact angle design, they deliver exceptional rigidity and rotational accuracy even under high-speed operating conditions. Our product range covers a full spectrum of sizes and configurations, available as single bearings or pre-matched sets in DB (Back-to-Back), DF (Face-to-Face), and DT (Tandem) arrangements (including double, triple, and quadruple combinations) to accommodate diverse load and installation requirements.Manufactured from high-purity vacuum-degassed bearing steel, the raceways undergo precision superfinishing to achieve an ultra-smooth surface finish. High-precision steel balls with strictly controlled dimensional uniformity ensure even load distribution across all rolling elements. Sealing options include open designs and 2RZ double-sided non-contact rubber seals , which effectively block dust, moisture, and contaminants, extending the service life of internal lubricating grease. Cages are manufactured from high-strength engineering nylon or textile laminated phenolic resin, featuring a lightweight design that minimizes centrifugal force at high speeds, guides steel balls precisely, and reduces friction and noise.
Available in accuracy grades spanning P5, P4, P4A and P2, our bearings undergo rigorous control of dimensional and geometric tolerances. They are widely deployed in demanding industrial applications including machine tool spindles, servo motors, precision instruments, aerospace, pumps and compressors, where rotational accuracy, load capacity and reliability are non-negotiable requirements.

Available Options

Contact Angle	AC (25°), C (15°), B (40°)
Cage	TA (Textile laminated phenolic resin cage), TN (PA46 cage)
Seal	2RZ (Bearing with non-contact seals on both sides)
Accuracy	P5, P4, P4A, P2
Bearing Arrangement	SU (universal match), DB (back-to-back), DF(face-to-face), DT (tandem), DU (pair of bearings for installation in any configuration), TBT, TFT, TT, QBC, QFC, QT, QBT, QFT, PBC, PFC, PT, PBT, PFT......
Preload	EL (Extra Light), L (Light), M (Medium), H (Heavy)

Core Product Advantages

Exceptional High-Speed Performance
Optimized raceway geometry, precision-matched steel ball tolerances, and low-friction cages significantly reduce heat generation and vibration during high-speed operation, substantially increasing the limiting speed to meet the requirements of high-speed spindles and high-performance motors.
High Rigidity and Superior Load Capacity
The angular contact structure simultaneously accommodates radial and unidirectional axial loads. Pre-matched multi-bearing sets further enhance system rigidity and anti-overturning moment capability, effectively minimizing equipment deformation during operation and improving machining accuracy and equipment stability.Extended Service Life
High-purity bearing steel undergoes strict quenching and tempering heat treatment processes, providing excellent wear resistance and fatigue strength. The reliable sealing system protects internal lubrication from contamination, reducing the risk of lubrication failure, significantly extending bearing service life, and lowering equipment maintenance costs.
Ultra-Precise Rotational Accuracy
Full-process precision manufacturing control strictly regulates critical dimensional tolerances (inner diameter, outer diameter, width) as well as radial and axial runout. This ensures smooth bearing operation, reduces equipment vibration and noise, and guarantees the positioning accuracy and machining quality of precision equipment.

Technical DataWith numerous model configurations available, complete product details cannot be fully displayed on this page.
Feel free to consult our team for the full catalogue, and we will offer more models and pairing methods.

Main Products

Company Profile

Harbin Xinha Precision Bearing Stock Co., Ltd. is located in Harbin Export Manufacturing Base, which borders on the beautiful Songhua River. Our company covers an area of 54, 000 sqm and 33, 600 sqm of building area, among which 156, 000sqm for workshops, 15, 000sqm for green area and 3, 000 for service area. We have own dormitory and dining room for employee. Now our equipments has reached 230 units. Harbin Xinha Precision Bearing Stock Co., Ltd specialized in producing high precision bearings mainly P2\P4 and P5 grade, and universal matched pair bearings. Our annual Capacity is 800, 000pieces and sale volume up to 150 million yuan. Our products are mainly used in machine tool spindle, CNC machine tool and spindles for the supporting and maintenance of machine tool spindles, CNC machine tool and Production equipments. At present, some products can compete with world famous brand bearings. Nowadays we have become one of professional high technology enterprises with complete production, sale and after-sale service management system after striving for several years. We have set up branches in major cities in China and more than ten leading plants to meet demands of local customers. Meanwhile, we continually expand our capacity to produce special specifications and hard to find products to increase our influence. We adopt modern management method to ensure the quality of our product. In the meanwhile we pay more attention to attracting senior technicians to join us. Our plant include Technology Dept, Production Dept, Quality Inspection Dept, Supply & Purchase Dept, Sales Dept, Financial Dept, Production Workshop and Assembly Workshop. In order to make customers gain our satisfactory services, we carry out strict management in quality control &original material purchase, and equip advanced testing instruments. We obtained ISO 9001 certificates in 2001 and built up efficient quality systems, proven and accredited according to GB/T19001-2000 and ISO 9001: 2000 Standards.

Company Advantage

Certifications

Packaging & Shipping

Packing & Delivery

FAQ1. May I get samples?-Sure, we are very glad to provide samples for you.2. What is your minimum order quantity?-This can be negotiated.3. Can I use my own logo or design on the products?-Sure. We can print your brand on the products and also accept customization of non-standard models.4. Do you have your own factory?-Sure. Our factory is located in Harbin, Heilongjiang. You are warmly welcome to visit our factory if you are interested.5. How long does it take from order to shipment?-It depends on your order quantity and our stock. If the bearings are in stock, we can ship them soon. If out of stock and need production, the lead time is about 45 days. And it also depends on your order quantity.6. What if I cannot find the required products in your store?-Different manufacturers have different bearing designation systems and product structures. Please send us your technical requirements, and we will recommend matching models according to your usage.7. Which payment method does your company support?-30% deposit,balance payment before delivery.