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{"title":"7314B 70mm Bore Single Row Angular Contact Ball Bearing for High Speed Operation","imgUrl":"https:\/\/img.chinax.com\/nimg\/00\/fd\/d581a8d7a34d4cdabad128288366-200x200-1\/7314b_70mm_bore_single_row_angular_contact_ball_bearing_for_high_speed_operation_open_type.jpg","attrs":{"Structure":"Angular Contact","Seals Type":"Open","Part Number":"7314B Angular Contact Ball Bearings","Lubrication":"Grease,Oil"}}
{"title":"75mm Bore 7315B Angular Contact Ball Bearing Single Row 75*160*37 Mm Open Type","imgUrl":"https:\/\/img.chinax.com\/nimg\/65\/2c\/c78d027e99f4a3c216587eee115f-200x200-1\/75mm_bore_7315b_angular_contact_ball_bearing_single_row_75_2a160_2a37_mm_open_type.jpg","attrs":{"Brand Name":"CNBTZC or OEM","Model Number":"7315B","Certification":"IATF16949:2016","Place of Origin":"China"}}
{"title":"7311B 55mm Bore Angular Contact Ball Bearing with High Speed Operation and","imgUrl":"https:\/\/img.chinax.com\/nimg\/bd\/10\/091f2d906ea75cf03a2ab06ac152-200x200-1\/7311b_55mm_bore_angular_contact_ball_bearing_with_high_speed_operation_and_chrome_steel_material.jpg","attrs":{"Structure":"Angular Contact","Lubrication":"Grease,Oil","Design":"High capacity,High speed","Coating":"Without"}}
{"title":"7007AC P4A GA Super Precision Single Row Angular Contact Ball Bearing 35X62X14mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/91\/01\/84a212218512cc2e3c4a02c3d809-200x200-1\/7007ac_p4a_ga_super_precision_single_row_angular_contact_ball_bearing_35x62x14mm_high_speed_operation.jpg","attrs":{"Structure":"Angular Contact","Part Number":"7007AC P4A GA Angular Contact Ball Bearing","Replaceable With":"SKF, NSK","Sealing":"Without"}}
{"title":"S7009 ACD\/HCP4A Super Precision Single Row Angular Contact Ball Bearing with P4A","imgUrl":"https:\/\/img.chinax.com\/nimg\/ed\/b2\/7405ddc7f8121712a4e9488c10ff-200x200-1\/s7009_acd_2fhcp4a_super_precision_single_row_angular_contact_ball_bearing_with_p4a_precision_grade_and_hybrid_ceramic_balls_for_hi.jpg","attrs":{"Structure":"Angular Contact","Brand Name":"CNBTZC or OEM","Model Number":"S7009 ACD\/HCP4A","Certification":"IATF16949:2016"}}
40mm Bore 7308B Single Row Angular Contact Ball Bearings 40×90×23 mm Open Type
7308B 40×90×23mm Single Row Angular Contact Ball Bearing
The 7308B bearing features a bore diameter of 40 mm, outside diameter of 90 mm, and width of 23 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.
Product Specifications
Part Number7308 B
Bearing TypeAngular Contact
Measurement UnitMetric
Inner Bore Diameter (d)40 mm
Outer Bore Diameter (D)90 mm
Width (B)23 mm
Contact Angle40°
MaterialChrome Steel
Cage MaterialSteel
Number of RowsSingle Row
Seal TypeOpen
Temperature Range-30°C to 150°C
LubricationLubricated
Tolerance ClassP6 (ABEC-3)
Weight0.67 kg
Matched ArrangementNo
Universal Matching BearingNo
Dynamic Radial Load46,200 N
Static Radial Load30,500 N
Reference Speed For Grease6,300 rpm
Limiting Speed For Oil8,500 rpm
Performance Features of 7308B 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.
Applications of the 7308B Bearing
The 7308B angular contact ball bearing is ideal for applications needing to handle both radial and axial loads with high precision and speed. Key applications include:
Machine Tool Spindles: Offers high rigidity and speed (up to 6300 rpm with grease, 8500 rpm with oil), improving machining accuracy and stability.
Automotive Transmission Systems: Handles alternating loads and high axial forces well, suitable for transmissions and differentials.
Industrial Power Equipment: Features high load capacity and wear resistance, beneficial for motors, compressors, and pumps.
High-Speed Precision Machinery: Designed for low vibration at high speeds, perfect for devices like centrifuges and precision instrument spindles.
7300B Series Bearing Specifications
Bearing Number
Inner Diameter d (mm)
Outer Diameter D (mm)
Width B (mm)
Dynamic Cr (N)
Static Cor (N)
Grease Speed (rpm)
Oil Speed (rpm)
Weight (kg)
7301B
12
37
12
9,600
4,000
16,000
24,000
0.060
7302B
15
42
13
12,000
6,000
14,000
22,000
0.080
7303B
17
47
14
14,000
8,000
13,000
18,000
0.110
7304B
20
52
15
17,300
9,650
11,000
15,000
0.140
7305B
25
62
17
26,200
15,200
8,500
12,000
0.300
7306B
30
72
19
31,000
19,200
7,500
10,000
0.370
7307B
35
80
21
38,200
24,500
7,000
9,500
0.510
7308B
40
90
23
46,200
30,500
6,300
8,500
0.670
7309B
45
100
25
59,500
39,800
6,000
8,500
0.900
7310B
50
110
27
68,200
48,000
5,000
6,700
1.150
7311B
55
120
29
78,800
56,500
4,500
6,000
1.450
7312B
60
130
31
90,000
66,300
4,300
5,600
1.850
7313B
65
140
33
102,000
77,800
4,000
5,300
2.250
7314B
70
150
35
115,000
87,200
3,600
4,800
2.750
7315B
75
160
37
125,000
98,500
3,400
4,500
3.300
7316B
80
170
39
135,000
110,000
3,600
4,200
3.90
7317B
85
180
41
148,000
122,000
3,000
4,000
4.60
7318B
90
190
43
158,000
138,000
2,800
3,800
5.40
7319B
95
200
45
172,000
155,000
2,800
3,600
6.25
7320B
100
215
47
188,000
180,000
2,400
3,400
7.75
7321B
105
225
49
202,000
195,000
2,200
3,200
8.80
7322B
110
240
50
225,000
225,000
2,000
3,000
10.50
7328B
140
300
62
288,000
315,000
1,700
2,400
22.44
Certification & Services
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
Beining Intelligent Technology
Precision Bearings for High-Performance Industries
At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in:
CNC Machine Tool Spindles
Robotics
Motors
With a focus on quality, automation, and...
Beining Intelligent Technology
Precision Bearings for High-Performance Industries
At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in:
CNC Machine Tool Spindles
Robotics
Motors
With a focus on quality, automation, and...
