7212b Ultra-Precision Machine Tool Angular Contact Ball Auto Bearing

• Customization: Available
• Contact Angle: 15°
• Aligning: Non-Aligning Bearing
• Model NO.: 7212B
• Rows Number: Single
• Load Direction: Radial Bearing
• Material: Bearing Steel
• Lubrication: Oil or Grease
• Number of Row: Single Row
• Weight: 0.9 Kg
• Precision Rating: P0 P4 P5 P6
• Radial Clearance: C2 Co C3 C4 C5
• Accuracy Grade: P0 P6 P5 P4 P2
• Vibration Acceleration: Z Z1 Z2 Z3 Z4
• Vibration Tolerance: VV1 V2 V3 V4
• Application: Spindles, Machine Tools, Precision Machinery, etc
• Transport Package: Universal Packing
• Specification: Size customization
• Trademark: SDLB
• Origin: Hebei
• Production Capacity: 500000 Pieces/Year
• Package Size: 10.00cm * 25.00cm * 40.00cm
• Package Gross Weight: 5.000kg
• Lead Time: 2 days (1 - 1000 Sets) ; To be negotiated ( > 1000 Sets)

Product Description

Detailed Photos

Our bearing products
Low noise, low friction, high load, high speed.
Smooth operation, uniform speed, mature technology.
The product has a smooth surface and a beautiful appearance.
Technical support, able to provide drawings and industrial solutions.
High material purity, corrosion-resistant and not easy to rust, quality assurance.
Multiple processes are strictly inspected, and each product is delivered as qualified.
The product strictly selects materials, with meticulous workmanship and quality assurance.
The material of the bearing design has been repeatedly verified and calculated to extend the service life of the bearing.

High carbon chromium bearing steel
A high-quality and long-life bearing steel, the steel used for the ring and washer is SUJ2 high carbon chromium bearing steel that complies with JIS G 4805 standard.
High quality materials
The components made of high-quality materials, precision heat treatment technology, and high-precision processed steel ball paths ensure the long service life of the product, thereby reducing risks and improving efficiency.
Bainite isothermal quenching technology
High strength is used to withstand external loads, resulting in bearings that are super wear-resistant and have a long service life. After bainitic isothermal quenching, rolling bearings obtain high hardness to cope with fatigue deformation.

Product Parameters

Bearing NO	Dimensions ( mm)			Speed rating  (IPM)		Basic load rating (KN)		Weight (kg)
	d	D	B	Grease	Oil	Cr	Cor
7210C	50	90	20	12000	15000	32.91	26.83	0.45
7210AC	50	90	20	12000	15000	32.91	26.83	0.45
7210B	50	90	20	12000	15000	35.74	26.64	0.6
7211C	55	100	21	11000	14000	40.71	33.96	0.6
7211AC	55	100	21	11000	14000	40.71	33.96	0.6
7211B	55	100	21	11000	14000	41.19	33.72	0.69
7212C	60	110	22	9700	13000	46.9	40.53	0.81
7212AC	60	110	22	9700	13000	46.9	40.53	0.81
7213C	65	120	23	9000	12000	53.67	46.22	1.0
7213AC	65	120	23	9000	12000	53.67	46.22	1.01
7213B	65	120	23	9000	12000	61.06	49.17	1.13
7214C	70	125	24	8300	11000	56.04	49.52	1.08
7214AC	70	125	24	8300	11000	56.04	49.52	1.08
7214B	70	125	24	8300	11000	66.4	53.9	1.05
7215C	75	130	25	7800	10000	60.91	54.34	1.68
7215AC	75	130	25	7800	10000	60.91	54.34	1.68
7215B	75	130	25	7800	10000	68.61	58.3	1.36
7216C	80	140	26	7300	9700	68.81	63.35	1.48
7216AC	80	140	26	7300	9700	68.81	63.35	1.48
7216B	80	140	26	7300	9700	74.32	63.73	1.65
7217C	85	150	28	6900	9100	77.5	72.6	1.88
7217AC	85	150	28	6900	9100	77.5	72.6	1.88
7217B	85	150	28	6900	9100	86.36	75.29	2.05
7218C	90	160	30	6500	8600	89.9	82.6	2.26
7218AC	90	160	30	6500	8600	89.91	82.6	2.26
72188	90	160	30	6500	8600	102.49	874	2.5
7219C	95	170	32	6100	8100	96.5	88.8	2.78
7219AC	95	170	32	6100	8100	96.5	88.8	2.78
7219B	95	170	32	6100	8100	117.69	101.93	3.1

Product Details

1.Strong load-bearing capacity: It can bear radial and axial loads at the same time, and has high load-bearing capacity.
2.Wide applicability: widely used in wind turbines, automobile transmission systems, engineering machinery and other fields.
3.High-speed operation: suitable for high-speed rotation environment, with good stability and durability.
4.High precision: Using high-quality materials and precision processing, it has high rotation accuracy and work efficiency.
5.Easy installation: simple structure, convenient installation and maintenance.

Product Application

 

                                                                                                                             

                                                                                                                                       

Company Introduction

      Shenzhen Lanzer Electronics Co., Ltd. was established in 2013. It is the sales company of Lanbo and Huicong, a subsidiary of Hebei Tianma Bearing Manufacturing Co., Ltd.
      The company's products cover various types of bearings, including ball bearings, roller bearings, angular contact bearings and various non-standard special-shaped bearing series. The company specializes in the production of ultra-thin equal-section bearings, industrial automation robot bearings, thin-walled deep groove ball bearings, thin-walled angular contact ball bearings and various non-standard special-shaped bearing series. Now the company has matured in R&D and manufacturing to replace foreign imported ultra-thin bearings and equal-section thin-walled ball bearings. Ultra-thin constant-section bearings consist of seven open series and five sealed series, with bore diameters from 1 inch to 40 inches and cross-sectional dimensions ranging from 0.1875x0.1875 inches to 1.000x1.000 inches; divided into three types : Deep groove ball type (C type), angular contact type (A type), four-point contact type (X type).
      Products are widely used in transmission devices such as automobiles, bicycles, reducers, medical equipment, sports equipment, aviation, robot joints, machine tools, packaging equipment, textile machinery, semiconductor processing equipment, RV reducers and rotary worktables.
      The company adheres to the principle of "customer first, quality first" and strives to provide customers with high-quality products and services. We welcome customers from all over the world to cooperate with us to develop together and create a better future.

The testing instruments include metallographic structure tester, imported coordinate measuring machine, projection length measuring machine, BVT vibration and noise measuring instrument, roundness meter, profiler, roughness meter, etc. the production equipment includes full-automatic servo grinder and wire drawing machine Precision equipment such as precision machine, plane precision grinding machine, assembly fitting instrument and ultrasonic cleaning machine ensure our production strength and bearing quality Stability.
Joint cooperation
We are a professional thin wall bearing manufacturer We can provide customized services to meet customer requirements.
We welcome customers from all over the world to establish business relations and cooperation with us.
We are committed to becoming your most reliable bearing supplier.

Packaging & Shipping

Universal Packing	Without any logo on bearings or packing.
SDLB Packing	With our brand SDLB on bearings and packing.
Customized Packing	Depends on buyer's requirements.
Original Brand Packing	Bearing and packing are both original. Please contact us for pictures.

Product recommendations

 

 

                                                                                           
US $15.5-25.9/Set                                                                         US $0.5-1.5 / Set                                                                          US $2.5-9.5 / Set

10 Sets                                                                                            10 Sets                                                                                          10 Sets

 

 

                                                                                                          
US $0.5-8.9/Set                                                                             US $8.5-11 / Set                                                                            US $0.7-3.6 / Set

10 Sets                                                                                            10 Sets                                                                                           10 Sets

 

 

                                                                                            
US $6.6-25.9/Set                                                                      US $5.5-15 / Set                                                                                  US $2.5-10 / Set

10 Sets                                                                                       10 Sets                                                                                                  10 Sets

 

 

                                                                                                             
US $1.5-10.5Set                                                                  US $2.5-5.5 / Set                                                                                US $2.5-11 / Set

10 Sets                                                                                  10 Sets                                                                                                10 Sets

We supply different types of ball and roller bearings,tapered roller bearing, deep groove ball bearing, spherical roller bearing, Linear guides. 

FAQ

Q1:  What is our advantages?
A: Manufacturer - Do it only with the Best;Your Choice make different. 
Q2:  Our Products
A:   Equal-section thin-wall bearings,Linear guide bearings,Deep groove ball bearing,Cylindrical roller bearing,Spherical roller bearing,Needle roller bearing,Angular contact ball bearing,Tapered roller bearing,Thrust ball bearing,Self-aligning ball bearing.
Q3:  Process of our production
A:  Heat Treatment - Grinding - Parts Inspection - Assembly - Final Inspection - Packing
Q4:  How to customize bearing(non-standard) from your company?
A:  We offer OEM,Customized(Non-standard) service and you need to provide drawing and detailed Technical Data.
Q5:  What should I care before installation?
A:  Normally, the preservative with which new bearings are coated before leaving the factory does not need to be removed; it is only necessary to wipe off the outside cylin­drical surface and bore, if the grease is not compatible with the preservative, it is necessary to wash and carefully dry the bearing.Bearings should be installed in a dry, dust-free room away from metal working or other machines producing swarf and dust.
Q6:  How to stock and maintenance my bearings right? 
A: Do not store bearings directly on concrete floors, where water can condense and collect on the bearing;Store the bearings on a pallet or shelf, in an area where the bearings will not be subjected to high humidity or sudden and severe temperature changes that may result in condensation forming;Always put oiled paper or, if not available, plastic sheets between rollers and cup races of tapered roller bearings.