7312B 60*130*31mm Single Row Angular Contact Ball Bearing
The 7312B bearing,with a bore diameter of 60 mm, outside diameter 130 mm, and
width of 31 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 | 7312 B |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions | Inner Bore Diameter (d) | 60 mm |
| Outer Bore Diameter (D) | 130 mm |
| Width (B) | 31 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 | 1.85 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Load and Speed | Dynamic Radial Load | 90000 N |
| Static Radial Load | 66300 N |
| Reference Speed For Grease (r/min) | 4,300 rpm |
| Limiting Speed For Oil(r/min) | 5,600 rpm |
What's the Performance Features of 7312B Bearing?
- High-Speed Operation: With minimal friction, this bearing is designed for stable
performance at high speeds.
- Precision and Durability: It offers high precision and strength, making it suitable for
applications requiring accurate shaft rotation.
- Angular Contact Design: This design efficiently handles both axial and radial loads,
enhancing load capacity and extending the bearing's life.
- Single Direction Load Support: Capable of managing axial loads in one direction along with
radial loads, ideal for applications where forces act mainly in one
direction.
What's the Applications of the 7312B Bearing?
The 7312B is an angular contact ball bearing widely used in various
industries due to its high precision, high speed, and load-bearing
capabilities. Below are its primary application areas:
1. Machine Tools & General Machinery
- Used in milling machines, broaching machines, and machine guards.
- Enhances efficiency and stability with high precision and speed.
- Also used in pressing machines, casting equipment, and heat
exchangers for high-load applications [123].
2. Industrial Automation & Special Equipment
- Common in automation devices like inserter machines, vibratory
feeders, and soldering irons.
- Good sealing and wear resistance make it suitable for dusty or
moist environments.
- Supports high-speed and precise control in magnetizers, reactors,
and annealing furnaces [2716].
3. Chemical & Food Processing
- Found in chemical reactors, pumps, and nonwoven machinery due to
its corrosion-resistant materials.
- Used in food processing equipment like grain processing and washing
machines, meeting hygiene standards [12].
4. Printing, Packaging & Textile Machinery
- Provides high-precision support in printing (e.g., offset printers)
and textile machines (e.g., nonwoven machinery).
- Low friction and compact design reduce energy use and extend life
in high-speed operations [1216].
5. Other Special Applications
- Applied in medical devices, environmental equipment, and livestock
machinery.
- Proven reliable in niche areas like electrostatic generators and
shoe-making machines.
| 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 |
If you need more detailed information , feel free to ask!
