What Are Our Concerns About Bearings（24）

Q1: SN200 SN300 SN500 SN600 series bearing seats  

Please check the bearing manual, one bearing seat can be equipped with many types of bearings, and bearing seat seals of different types  

Q2: Bearing 62 outside, 30 inside diameter, thickness of 16, what type is it?

Bearing outer 62, inner diameter 30, thickness 16, models are:  

• 1) 23026 CA/W33 bearing: new model 23026 CA/W33 bearing, old model C206E bearing;  
• 2) 23230 C bearing: new model 23230 C bearing, old model 50206E bearing;  
• 3) 22240 CA bearing: new model 22240 CA bearing, old model NULL bearing;  
• 4) 23140 bearing: new model 23140 bearing, old model 60206E bearing;  
• 5) 32926 bearing: new model 32926 bearing, old model 150206E bearing;  
• 6) 7018 ACM bearing: new model 7018 ACM bearing, old model 160206E bearing;  
• 7) 30311/P5 bearing: new model 30311/P5 bearing, old model NULL bearing;  
• 8) 31314/YB2 bearing: new model 31314/YB2 bearing, old model 160206EK bearing;
• 9) 31312 bearing: new model 31312 bearing, old model 180206EK bearing;  
• 10) 1317 K bearing: new model 1317 K bearing, old model E180206EK bearing;  
• NN 3015K /P5 bearing: New model NN 3015K /P5 bearing, old model E160206EK bearing;  
• 12) 51226/P5 bearing: new model 51226/P5 bearing, old model 180206EKZ1 bearing;
• 13) NU 2316L bearing: New model NU 2316L bearing, old model 160206EKZ1 bearing;  
• 14) NJ 2317m bearing: new model NJ 2317m bearing, old model 3G180206EKZ1 bearing;
• 15) 23048/W33 bearing: new model 23048/W33 bearing, old model 180206EKZ2 bearing;
• 16) 22218K bearing: new model 22218K bearing, old model C180206EK bearing;  
• 17) 22318 CK bearing: new model 22318 CK bearing, old model 180206E bearing;  
• 18) NU 2315 EM bearing: New model NU 2315 EM bearing, old model 3G180206EKZ2 bearing;  
• 19) NU 2334 M bearing: New model NU 2334 M bearing, old model NULL bearing;
• 20) 7207 EBN2L1/P5DB bearing: new model 7207 EBN2L1/P5DB bearing, old model NULL bearing.  

Q3: How many types of bearings are there?  How do you remember the

 model number?  

Bearings can be divided into sliding bearings and rolling bearings according to the friction mode, and rolling bearings are divided into ball bearings and roller bearings according to the shape of the rolling body.  

Ball bearings can be divided into:  

Double row angular contact ball bearings  

Self-aligning ball bearing  

Double row deep groove ball bearings  

Thrust ball bearing  

Single row deep groove ball bearings  

Single row angular contact ball bearings  

QJ four point contact ball bearing  

Roller bearings can be divided into:  

Spherical roller bearing (also called self-aligning roller bearing)  

Tapered roller bearing  

Thrust roller bearing  

Cylindrical roller bearing  

Deep groove ball bearings  

There are many other series of bearings such as needle roller bearings, joint bearings, hub bearings, linear bearings, self-lubricating bearings and so on  

The type is generally on both sides of the bearing steel stamp or laser printed on the hope to adopt!  Because there are too many models can not give examples how to better remember the model personally feel more complicated because each brand of model is not the same, so ~ some models are double-sided seal in the middle back to 2RS1 model name!  

Q4: I need CAD to draw the bearing, so we need to know the outer diameter of the bearing, the inner diameter.  Etc..  Please..  

Deep groove ball bearing 6300 300 10 35 11 7.65 3.48 18000 24000 0.053  

Aligning ball bearing 2201 1501 12 32 14 7.65 1.75 21000 26000 0.053  

Tapered roller bearing 30202 7202E 15 35 11 14.9 13.4 12000 16000 0.053  

Thrust ball bearing 51203 8203 17 35 12 17.2 27.3 4900 7500 0.053  

Thrust roller bearing 81105 9105 25 42 11 33.5 76-7000 0.053  

Deep groove ball bearings 6300-2RS/Z3 180300Z3 10.0000 35.0000 11.0000 – – – – 0.053  

Deep groove ball bearing 6300-2LZ-10.0000 35.0000 11.0000  

Q5: What type of bearing with outer diameter 47 and inner diameter 30?  

Bearing with outer diameter 47 and inner diameter 30 is: 61906 deep groove ball bearing, width 9.  

Thrust ball bearing, width 11.  

Tapered roller bearing, width 12.  

Angular contact ball bearing, width 9.  

Q6: Bearing inner diameter 30 outer diameter 52 Who knows the type of this bearing?  It’s a kind of aeration motor  

The bearing of this specification is 51206  

Thrust ball bearing  

Q7: What is the inner diameter of 6001 bearing?  

Inner diameter of bearing: 12mm  

NSK 6001 bearing  

<Bearing series > deep groove ball bearings  

[Inner diameter] 12mm  

[Outer diameter] 28mm  

Bearing Model: 6001 bearing  

Thickness: 8mm  

Rated dynamic load (N) : 5100  

Rated static load (N) : 2370  

Rated dynamic load (Kg) : 520  

Rated static load (Kg) : 241  

Q8: What does bearing 6210 mean?  

Deep groove ball bearing with aperture 50, od 90 and height 20  

6 represents 0 type of deep groove ball bearings, 2 represents 2 series of deep groove ball bearings including 1 series 2 series 3 series 4 series and ultra-thin series 2 series of bearings thicker than 1 series, 3 series thicker than 2 series and 1 series, and so on.  10 represents 10*5= bearing with an inner diameter of 50mm,  

Q9: 2311 bearing is different from 22311 bearing  

2311 is a self-aligning ball bearing, 22311 is a self-aligning roller bearing, its assembly size is the same, inner diameter 55mm, outer diameter 120mm, width 43mm, but the rolling body is a steel ball, the other is a roller.  

Q10: Ball screw bearings? TAC? What is the domestic model?  

Take 30TAC62BSUC10PN7B as an example: (size: D× D×B=30×62×15, mm)  

30: Inner diameter code.  Inner diameter size =30mm  

TAC: contact Angle code.  60 degree contact Angle.  

62: outer diameter code.  Outer diameter size =62mm.  

B: Internal formal notation.  

SU: combination mode code.  SU represents any combination of a single, DU two, DB back-to-back, DF face to face, and DT series.  

C10: Preload mark.  Standard preload.  

PN7B: SU combination special precision class code.  It’s P4 precision.  

China HRB bearing 7602030TN/P4 (from Germany FAG 7602030)  

Size: D× D×B=30×62×16, mm.  Compared with NSK TAC bearings:  

(1) Width size difference of 1mm.  

(2) Lack of SU or DU combination in production (heard).  

(3) There are no parameters of pre-tightening HRB, I wonder whether they are the same.  

Note: once encountered, with 760 series bearings successfully replace THE NSK TAC series example.  

In addition: we have encountered fake products of 30TAC62B, which indicates that someone in China can produce this kind of bearing, but other parameters besides size can not be guaranteed.  

If THE TAC bearing of NSK is not easy to buy, it can be selected:  

NACHI: 30TAB06UA  

German FAG/ British RHP: BSB030062T  

In addition: Germany FAG also has 7602030TN bearing, the same size as HRB!