Beining Intelligent Technology (Zhejiang) Co., Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | 100000pcs per month |
| Delivery Time | 2-4 weeks |
| Packaging Details | plastic bag,box,carton,pallet |
| Part Number | 7311B Angular Contact Ball Bearings |
| Structure | Angular Contact |
| Seals Type | Open |
| Ring type | One-piece inner and outer rings |
| Lubrication | Grease,Oil |
| Replaceable With | SKF, NSK |
| Coating | Without |
| Sealing | Without |
| Design | High capacity,High speed |
| Contact type | Normal contact (two-point contact) |
| Brand Name | CNBTZC or OEM |
| Model Number | 7311B |
| Certification | IATF16949:2016 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 100000pcs per month |
| Delivery Time | 2-4 weeks | Packaging Details | plastic bag,box,carton,pallet |
| Part Number | 7311B Angular Contact Ball Bearings | Structure | Angular Contact |
| Seals Type | Open | Ring type | One-piece inner and outer rings |
| Lubrication | Grease,Oil | Replaceable With | SKF, NSK |
| Coating | Without | Sealing | Without |
| Design | High capacity,High speed | Contact type | Normal contact (two-point contact) |
| Brand Name | CNBTZC or OEM | Model Number | 7311B |
| Certification | IATF16949:2016 | Place of Origin | China |
7311B 55*120*29mm Single Row Angular Contact Ball Bearing
The 7311B bearing,with a bore diameter of 55 mm, outside diameter 120 mm, and width of 29 mm.This single row angular contact ball bearing can support both radial and axial loads simultaneously, with the axial load being accommodated in one direction only. Depending on the specific model, this bearing is capable of operating at high speeds or even extremely high speeds. Compared to deep groove ball bearings, it can withstand significantly greater unidirectional axial forces.It is particularly well-suited for situations needing robust handling of both radial and significant unidirectional axial loads at high speeds.
| Part Number | 7311 B | |
| Bearing Type | Angular Contact | |
| Measurement Unit | Metric | |
| Dimensions | Inner Bore Diameter (d) | 55 mm |
| Outer Bore Diameter (D) | 120 mm | |
| Width (B) | 29 mm | |
| Specifications | Contact Angle | 40° |
| Material | Chrome Steel | |
| Cage Material | Stell | |
| Number of Rows | Single Row | |
| Seal Type | Open | |
| Temperature Range | -30°C to 150°C | |
| Lubrication | Lubricated | |
| Tolerance Class | P6 (ABEC-3) | |
| Weight | 1.45 kg | |
| Matched Arrangement | No | |
| Universal Matching Bearing | No | |
| Load and Speed | Dynamic Radial Load | 78800 N |
| Static Radial Load | 56500 N | |
| Reference Speed For Grease (r/min) | 4,500 rpm | |
| Limiting Speed For Oil(r/min) | 6,000 rpm | |
What's the Performance Features of 7311B Bearing?
What's the Applications of the 7311B Bearing?
The 7311B bearing, as an angular contact ball bearing, is widely used in the following fields due to its high speed, high load capacity, and ability to carry bidirectional axial loads:
1. Industrial Machinery and Equipment
2. Engineering and Construction Machinery
3. Special Equipment and Precision Instruments
4. Automotive and Transportation
5. Other Applications
For any questions or inquiries, please feel free to contact us.
| Bearing Number | Dimensions (mm) | Basic Load Rating(N) | Limiting Speeds(rpm) | Reference Weight(Kg) | ||||||||
| Inner Diameter | Outer Diameter | Width | Chamfer | Dynamic | Static | Grease | Oil | |||||
| d | D | B | rmin | r1min | Cr | Cor | Non-contact | Wt ≈ | ||||
| 7301B | 12 | 37 | 12 | 0.60 | 0.30 | 9600 | 4000 | 16000 | 24000 | 0.060 | ||
| 7302B | 15 | 42 | 13 | 1.00 | 0.60 | 12000 | 6000 | 14000 | 22000 | 0.080 | ||
| 7303B | 17 | 47 | 14 | 1.00 | 0.60 | 14000 | 8000 | 13000 | 18000 | 0.110 | ||
| 7304B | 20 | 52 | 15 | 1.00 | 0.60 | 17300 | 9650 | 11000 | 15000 | 0.140 | ||
| 7305B | 25 | 62 | 17 | 1.10 | 0.60 | 26200 | 15200 | 8500 | 12000 | 0.300 | ||
| 7306B | 30 | 72 | 19 | 1.10 | 0.60 | 31000 | 19200 | 7500 | 10000 | 0.370 | ||
| 7307B | 35 | 80 | 21 | 1.50 | 0.60 | 38200 | 24500 | 7000 | 9500 | 0.510 | ||
| 7308B | 40 | 90 | 23 | 1.50 | 0.60 | 46200 | 30500 | 6300 | 8500 | 0.670 | ||
| 7309B | 45 | 100 | 25 | 1.50 | 0.60 | 59500 | 39800 | 6000 | 8500 | 0.900 | ||
| 7310B | 50 | 110 | 27 | 2.00 | 0.60 | 68200 | 48000 | 5000 | 6700 | 1.150 | ||
| 7311B | 55 | 120 | 29 | 2.0 | 1.0 | 78800 | 56500 | 4500 | 6000 | 1.450 | ||
| 7312B | 60 | 130 | 31 | 2.1 | 1.1 | 90000 | 66300 | 4300 | 5600 | 1.850 | ||
| 7313B | 65 | 140 | 33 | 2.1 | 1.1 | 102000 | 77800 | 4000 | 5300 | 2.250 | ||
| 7314B | 70 | 150 | 35 | 2.1 | 1.1 | 115000 | 87200 | 3600 | 4800 | 2.750 | ||
| 7315B | 75 | 160 | 37 | 2.1 | 1.1 | 125000 | 98500 | 3400 | 4500 | 3.300 | ||
| 7316B | 80 | 170 | 39 | 2.1 | 1.1 | 135000 | 110000 | 3600 | 4200 | 3.90 | ||
| 7317B | 85 | 180 | 41 | 3.0 | 1.1 | 148000 | 122000 | 3000 | 4000 | 4.60 | ||
| 7318B | 90 | 190 | 43 | 3.0 | 1.1 | 158000 | 138000 | 2800 | 3800 | 5.40 | ||
| 7319B | 95 | 200 | 45 | 3.0 | 1.1 | 172000 | 155000 | 2800 | 3600 | 6.25 | ||
| 7320B | 100 | 215 | 47 | 3.0 | 1.1 | 188000 | 180000 | 2400 | 3400 | 7.75 | ||
| 7321B | 105 | 225 | 49 | 3.0 | 1.1 | 202000 | 195000 | 2200 | 3200 | 8.80 | ||
| 7322B | 110 | 240 | 50 | 3.0 | 1.1 | 225000 | 225000 | 2000 | 3000 | 10.50 | ||
| 7328B | 140 | 300 | 62 | 4.0 | 1.5 | 288000 | 315000 | 1700 | 2400 | 22.44 | ||
| CERTIFICATE | RoHS & REACH, IATF16949:2016 |
| Feature | High Speed and Stiffness,High Running Accuracy,High Load Carrying Capacity |
| Service | OEM&ODM Customized Services |
| Samples | Please Contact Us |
| Service | Online Support,Professional Service |
| Size | Standard,For custom sizes ,please contact us |
| Factory Manufacturer | Yes |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
2013
Total Annual:
30000000-+
Employee Number:
200~+
Ecer Certification：
Verified Supplier
At Beining Intelligent Technology (Zhejiang) Co.,Ltd, we specialize in designing and manufacturing super precision bearings for CNC machine tool spindles,robots and motors with an annual capacity of 200 million units. Our blend of innovation and scalable production serves industries worldwide. Ke... At Beining Intelligent Technology (Zhejiang) Co.,Ltd, we specialize in designing and manufacturing super precision bearings for CNC machine tool spindles,robots and motors with an annual capacity of 200 million units. Our blend of innovation and scalable production serves industries worldwide. Ke...
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