What Are Our Concerns About Bearings（36）

Q1:What is the transformation mode of the new and old bearings?

A：Common bearing type, structure, size, series code and bearing code old and new comparison  

Bearing name New code old code  

Type code Size series code bearing code width series code structural characteristics code type code Diameter series code bearing code  

Double row Angular contact ball bearing (0) 32 3200 30562 3056200  

33 3300 33 3056300  

Aligning ball bearing 1 (0) 2 1200 0 00 12 1200  

22 2200 5 1500  

(0) 3 1300 3 1300  

23, 2300, 1600  

Self-aligning roller bearing 213 21300C 0 05 33 53300  

22 22200C 0 5 53500  

23 22300C 0 6 53600  

30 23000C 3 1 3053100  

31 23100C 3 7 3053700  

32 23200C 3 2 3053200  

40 24000C 4 1 4053100  

41 24100C 5 7 5053700  

Thrust self-aligning roller bearing 292 29200 90392 9039200  

93 29300 93 9039300  

94 29400 94 9039400  

Tapered roller bearing 302 30200 0 00 72 7200  

03 30300 03 7300  

13 31300 0 02 3 27300  

20 32000 200 1 2007100  

22 32200 0 5 7500  

23 32300 0 6 7600  

29 32900 29 2007900  

30 33000 3 1 3007100  

31 33100 3 7 3007700  

32 33200 32 3007200  

Double row deep groove ball bearing 4 (2) 2 4200 0 8105 810500  

(2) 3 4300 06 810600  

Thrust ball bearing 511 51100 00 81 8100  

12 51200 2 8200  

13 51300 3, 8300  

14, 51400, 8400  

Bidirectional thrust ball bearing 522 52200 03 2 38200  

23, 52300 3, 38300  

24, 52400, 38400  

Thrust ball bearing with spherical seat 5 12* 53200 02 2 28200  

13 * 53300 3, 28300  

14 * 53400 4 28400  

Bidirectional thrust ball bearing with spherical seat 5 22* 54200 05 2 58200  

23 * 54300 3, 58300  

24 * 54400 4 58400  

Deep groove ball bearing 617 61700 10007 1000700  

37 63700 37 3000700  

18 61800 18 1000800  

19 61900 19 1000900  

16 (0) 0 16000 7 1 7000100  

6 (1) 0 6000 0 1 100  

0, 2, 6200, 0, 2, 200  

0, 3, 6300, 0, 3, 300  

(0) 4, 6400, 0, 4, 400  

Angular contact ball bearing 719 71900 10369 1036900  

(1) 0 7000 0 03 1 3 6100  

(0) 2 7200 0 04 2 4 6200  

(0) 3 7300 0 06 3 6 6300  

(0) 4 7400 0 4 346 6400  

Thrust cylindrical roller bearing 811 81100 0 00 91 9100  

12 81200 0 2 9200  

Inner ring without flange cylindrical roller bearing NU10 NU1000 0 03 21 32100  

(0) 2 NU200 2 32200  

22 NU2200 5 32500  

(0) 3 NU300 3 32300  

23 NU2300 6 32600  

(0) 4 NU400 04 4 32400  

Inner ring single retaining edge cylindrical roller bearing NJ (0) 2 NJ200 0 04 22 22 42200  

22 NJ2200 5 42500  

(0) 3 NJ300 3 42300  

23 NJ2300 6 42600  

(0) 4 NJ400 4 42400  

Cylindrical roller bearing NUP (0) 2 NUP200 009 22 92200 with flat retaining ring  

22 NUP2200 5 92500  

(0) NUP300 3 92300  

23 NUP2300 6 92600  

Cylindrical roller bearing N10 N1000 000 21 2100  

(0) 2 N200 2 2200  

22 N2200 5 2500  

(0) 3 N300 3 2300  

23 N2300 6 2600  

(0) 4 N400 4 2400  

NF (0) 2 NF200 0 01 2 3 12200  

(0) 3 NF300 3 12300  

23 NF2300 6 12600  

Double row cylindrical roller bearing NN30 NN3000 32821 3282100  

Inner ring without flange double row cylindrical roller bearing NNU49 NNU4900 44829 4482900  

External spherical ball bearing with top wire UC2 UC200 0 09 05 90500  

3 UC300 09 6 90600  

Outer spherical bearing with eccentric sleeve UEL2 UEL200 3905 390500  

3 UEL300 39 6 390600  

Tapered hole outer spherical bearing UK2 UK200 1905 190500  

3 UK300 19 6 190600  

Four point contact ball bearing QJ (0) 2 QJ200 1762 176200  

(0) 3 QJ300 17 3 176300  

Needle roller bearing NA48 NA4800 45448 4544800  

49 NA4900 4 54 9 4544900  

69 NA6900 6 25 9 6254900  

Q2:Rolling bearings GB/T 276-94 Boundary dimensions of deep groove ball bearings, are they new standards?  

A:JB/T 8721-2010 Rolling bearings magneto ball bearings  

JB/T 8722-2010 rolling bearings bearings for coal mine conveying machinery  

JB/T 8874-2010 Rolling bearings split vertical bearing housing technical specifications  

JB/T 8876-2010 Technical requirements for casting seat of outer spherical ball bearings for rolling bearings  

JB/T 8880-2010 Technical specification for deep groove ball bearings for rolling bearing motors  

JB/T 8919-2010 Rolling bearings – Specification for outer spherical ball bearings and eccentric bushing  

JB/T 8923-2010 Rolling bearing steel ball vibration (acceleration) technical specifications  

JB/T 8924-2010 Rolling bearings bearings for railway locomotives  

JB/T 9144-2010 Rolling bearings bearings for railway vehicles  

JB/T 10186-2010 Rolling bearing group supporting contact ball bearings technical specifications  

Q3:What is the self-aligning effect of thrust deep groove ball bearing?

A:Rolling bearings include thrust ball bearings, deep groove ball bearings, self-aligning ball bearing many types, such as their structure is different, thrust ball bearings can only carry axial load, deep groove ball bearings can bear radial load, self-aligning ball bearings to withstand a combination of axial and radial load, and self-aligning ball bearing large features a cardiac function.  

Thrust trench does not have this type  

Q4:1507 bearing seat, how much deep groove ball bearings?

A:1507 bearing seat with 1207 and 2207 aligning ball bearings (outer diameter of 72), if only from the outer diameter can be matched with 6404, 6306, 6207, 6910, 6811 deep groove ball bearings  

Q5:Bearing 6202ZZ, what do the letters mean?

A:6202ZZ is the model of deep groove ball bearing.  

6: deep groove ball type code;  

2: Bearing size series code;  

02: Bearing inner diameter size code, inner diameter: 15mm;

ZZ: Bearing with metal dust cover on both sides.  

Q6:What is the type of deep groove ball bearing with outer diameter 37 and inner diameter 20?

A:Deep groove ball bearing outer diameter 37 inner diameter 20 bearing models are 6904 (61904), 6904ZZ (61904ZZ), 6904-2RS (61904-2RS),  

Inside diameter: 20 mm  

Outer diameter: 37 mm  

Thickness: 9 mm  

Dynamic load: 6370N

Static load of 3650N

Limit speed: 18000 r/min  

Weight: 0.04 kg  

Q7:How to express the specification code of deep groove ball bearing?

A:Open basic structure, common basic code representation, example: 6204  

Bearing structure with stop groove, denoted by ‘N’ after model, example: 6204N  

Bearing structure with stop ring, denoted by ‘NR’ after model number, example: 6208NR  

Sealed structure with dust cover, denoted by Z after the code, single side Z, two sides 2Z, for example: 6204-Z 6204-2Z  

Contact sealing structure, code after RS means Z, two sides are 2RZS: 6024-RS 6204-2RS  

High load deep groove ball bearings, non-standard products can increase the number of steel balls, improve the load capacity, add E after the code, for example: 6210E  

Double row deep groove ball bearings, often 42XX, 43XX two series, example: 4205, 4305