Products

Home > Products > Angular Contact Ball Bearings > 7311B 55mm Bore Angular Contact Ball Bearing with High Speed Operation and Chrome Steel Material

Catagories

Reducer Bearing

(20)

Contacts

Contacts: Ms. Shelley Dong

Tel: 86-574-62262190

Contact Now

Mail Us

7311B 55mm Bore Angular Contact Ball Bearing with High Speed Operation and Chrome Steel Material

Name: 7311B 55mm Bore Angular Contact Ball Bearing with High Speed Operation and Chrome Steel Material
Brand: Beining Intelligent Technology (Zhejiang) Co., Ltd
SKU: 7311B
Availability: InStock

Product Details

Place of Origin: China

Brand Name: CNBTZC or OEM

Certification: IATF16949:2016

Model Number: 7311B

Payment & Shipping Terms

Minimum Order Quantity: 100

Price: Please contact us,thanks

Packaging Details: plastic bag,box,carton,pallet

Delivery Time: 2-4 weeks

Payment Terms: L/C,T/T

Supply Ability: 100000pcs per month

Get Best Price

Product Details

Product Description

Highlight: 
                                                                                                                                                                                                                                                                                                                                                                                Open angular bearing, 55mm Bore Angular Contact Ball Bearings
                              

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)

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)

7311B 55mm Bore Angular Contact Ball Bearing with High Speed Operation and Chrome Steel Material

55mm Bore 7311B Single Row Angular Contact Ball Bearings 55×120×29 mm Open Type

7311B 55×120×29mm Single Row Angular Contact Ball Bearing

The 7311B bearing features a bore diameter of 55 mm, outside diameter of 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.

Technical Specifications

Part Number	7311 B
Bearing Type	Angular Contact
Measurement Unit	Metric
Inner Bore Diameter (d)	55 mm
Outer Bore Diameter (D)	120 mm
Width (B)	29 mm
Contact Angle	40°
Material	Chrome Steel
Cage Material	Steel
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
Dynamic Radial Load	78,800 N
Static Radial Load	56,500 N
Reference Speed For Grease	4,500 rpm
Limiting Speed For Oil	6,000 rpm

Performance Features

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

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:

Industrial Machinery and Equipment

Metalworking: Used in coil plate machines, nail heel machines, and other equipment requiring high-precision rotary support.
Chemical and Mixing: Suitable for dry powder mixers, chemical equipment, and vibrating dryers, withstanding medium loads in corrosive environments.

Engineering and Construction Machinery

Lifting and Transport: Applied in tower cranes, conveyors, and similar equipment, adapting to heavy and shock loads.
Machinery Components: Provides stable support for drill bushings, hydraulic systems, and other components.

Special Equipment and Precision Instruments

Electronics Manufacturing: Ensures low-vibration operation in terminal machines, pick-and-place machines, and semiconductor packaging equipment.
Laboratory and Testing: Supports high-precision measurements in hardness testers, vibration platforms, and similar devices.

Automotive and Transportation

Automotive Components: Optimizes transmission efficiency in steering systems, gearboxes, and hub bearings.
Emerging Applications: Some companies are exploring its use in flying car hub bearings.

Other Applications

Agricultural Machinery: Used in transmission components of harvesters and irrigation equipment.
Home Appliances: Suitable for high-speed applications like shielded pumps and air conditioning compressors.

Product Series Reference

Bearing Number	Inner Diameter (d)	Outer Diameter (D)	Width (B)	Dynamic Load (Cr)	Static Load (Cor)	Grease Speed	Oil Speed	Weight
7301B	12	37	12	9600	4000	16000	24000	0.060
7302B	15	42	13	12000	6000	14000	22000	0.080
7303B	17	47	14	14000	8000	13000	18000	0.110
7304B	20	52	15	17300	9650	11000	15000	0.140
7305B	25	62	17	26200	15200	8500	12000	0.300
7306B	30	72	19	31000	19200	7500	10000	0.370
7307B	35	80	21	38200	24500	7000	9500	0.510
7308B	40	90	23	46200	30500	6300	8500	0.670
7309B	45	100	25	59500	39800	6000	8500	0.900
7310B	50	110	27	68200	48000	5000	6700	1.150
7311B	55	120	29	78800	56500	4500	6000	1.450
7312B	60	130	31	90000	66300	4300	5600	1.850
7313B	65	140	33	102000	77800	4000	5300	2.250
7314B	70	150	35	115000	87200	3600	4800	2.750
7315B	75	160	37	125000	98500	3400	4500	3.300
7316B	80	170	39	135000	110000	3600	4200	3.90
7317B	85	180	41	148000	122000	3000	4000	4.60
7318B	90	190	43	158000	138000	2800	3800	5.40
7319B	95	200	45	172000	155000	2800	3600	6.25
7320B	100	215	47	188000	180000	2400	3400	7.75
7321B	105	225	49	202000	195000	2200	3200	8.80
7322B	110	240	50	225000	225000	2000	3000	10.50
7328B	140	300	62	288000	315000	1700	2400	22.44

Certifications & 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
Factory Manufacturer	Yes

For any questions or inquiries, please feel free to contact us.

Tags:

705AC Miniature Super Precision Angular Contact Ball Bearing 5x14x5mm with 25°,15° and 40° Contact Angle and Light Preload

Get Best Price

Precision Ball Bearings

Angular Contact Ball Bearings

Deep Groove Ball Bearings

Custom Bearings

Spindle Bearings

Motor Bearings

Planetary Gear Bearings

Robot Bearing

Air Conditioner Bearings

Fan Bearings

Pump Bearings

Reducer Bearing

7311B 55mm Bore Angular Contact Ball Bearing with High Speed Operation and Chrome Steel Material

Open angular bearing

55mm Bore Angular Contact Ball Bearings

Angular Contact Ball Bearing,

Spindle Ball Bearing,

Precision Spindle Bearings

719/9AC Precision Miniature Ball Bearings Angular Contact 9x20x6mm For Mini Tractor

708AC High Speed Angular Contact Ball Bearing 8x22x7mm with P4 Precision for Precision Applications

High Precision 5x13x5mm Miniature Angular Contact Ball Bearing for Mini Tractor Applications

706AC High Precision P4 Miniature Angular Contact Ball Bearing 6x17x6mm with 25° Contact Angle

707AC High Precision Miniature Bearing Single Row Angular Contact Ball Bearing 7x19x6mm

705AC Miniature Super Precision Angular Contact Ball Bearing 5x14x5mm with 25°,15° and 40° Contact Angle and Light Preload

705AC High Precision Miniature Angular Contact Ball Bearing Single Row 5x14x5mm

718/7AC Miniature Precision Angular Contact Ball Bearing 7x14x5mm with Light Preload and 25°,15°,40° Contact Angle

718/8AC Miniature Precision Angular Contact Ball Bearing 8x16x5mm for High Speed Applications

5x11x5mm Open Type 718/5AC Miniature Precision Angular Contact Ball Bearing with 25° Contact Angle

718/6C Miniature Angular Contact Ball Bearing 6x13x5mm Precision Miniature Bearing for High-Speed Applications

Precision Ball Bearings

Angular Contact Ball Bearings

Deep Groove Ball Bearings

Custom Bearings

Spindle Bearings

Motor Bearings

Planetary Gear Bearings