Model NO.: MR74
HS Code: 8482109000
Model NO.: MR74
HS Code: 8482109000
full ceramic Bearing MR74 Zro2 materials white color 4*7*2mm
Because of its high compressive strength, contact fatigue resistance that is superior to chrome steels, electrical resistivity and low coefficient of friction versus bearing steels, silicon nitride ceramic bearings can be widely used in aviation, aerospace, marine, petroleum, chemical, automotive, electronics, metallurgy, electric power, textile, pumps, medical equipment, scientific research, national defense, military and other domains.
They can be used as high-speed bearings, high temperature bearings, corrosion-resistant bearings, shielded bearings, electrical insulation bearings and so on.
681(1*3*1);681zz(1*3*1.5);Â 681XZZ(1.5*4*2);681x(1.5*4*1.2);Â 691(1*4*1.6)Â ;691XZZ(1.5*5*2.6);691X(1.5*4*2);Â 684ZZ(4*9*4);682ZZ(2*5*2.3);Â 682(2*5*1.5);682XZZ(2.5*6*2.6);683ZZ(3*7*3);Â 685ZZ(5*11*5);Â 686ZZ(6*13*5);687ZZ(7*14*5);688ZZ(8*16*5);Â 689zz(9*17*5);692ZZ(2*6*3);692xzz(2.5*7*3.5);695zz(5*13*4);696zz(6*15*5);Â 698zz(8*19*6);694ZZ(4*11*4);693ZZ(3*8*4);693(3*8*3);603ZZ(3*9*5);604ZZ(4*12*4);605ZZ(5*14*5);Â 606ZZ(6*17*6);607ZZ(7*19*6);625zz(5*16*5);626ZZ(6*19*6)Â ;627ZZ(7*22*7);629ZZ(9*26*8);608zz(8*22*7);Â 623zz(3*10*4);624zz(4*13*5);625ZZ(5*16*5);MR52zz(2*5*.2.5);MR52(2*5*2);MR62zz(2*6*2.5);MR72zz(2*7*3);MR63zz(3*6*2.5),MR63(3*6*2);MR83zz(3*8*3);Â MR93zz(3*9*4);Â MR74zz(4*7*2.5);MR74(4*7*2);MR84zz(4*8*3);MR104zz(4*10*4);MR85zz(5*8*2.5);MR85(5*8*2);MR95zz(5*9*3);MR105zz(5*10*4);Â MR115zz(5*11*4);Â MR106zz(6*10*3);Â MR126zz(6*12*4);Â MR117zz(7*11*3);Â MR137zz(7*13*4);MR128zz(8*12*3.5);Â MR148zz(8*14*4);MR148(8*14*3.5)
Â
model |
(d) |
(D) |
(b) |
 Cr(N) |
 Cor(N) |
 |
open |
zz |
grease |
oil |
*1000rpm |
681 |
1 |
3 |
1 |
- |
96 |
26 |
130 |
150 |
691 |
4 |
1.6 |
- |
141 |
37 |
100 |
120 |
681Xzz |
1.5 |
4 |
1.2 |
2 |
112 |
33 |
100 |
120 |
691Xzz |
5 |
2 |
2.6 |
169 |
50 |
85 |
100 |
601Xzz |
6 |
2.5 |
3 |
330 |
99 |
75 |
90 |
682zz |
 2 |
5 |
1.5 |
2.3 |
169 |
50 |
85 |
100 |
MR52zz |
5 |
2 |
2.5 |
169 |
50 |
85 |
100 |
692zz |
6 |
2.3 |
3 |
330 |
99 |
75 |
90 |
MR62zz |
6 |
2.5 |
2.5 |
330 |
99 |
75 |
90 |
MR72zz |
7 |
2.8 |
3 |
386 |
129 |
63 |
75 |
602zz |
7 |
2.8 |
3.5 |
386 |
129 |
60 |
71 |
682Xzz |
 2.5 |
6 |
1.8 |
2.6 |
209 |
74 |
71 |
80 |
692Xzz |
7 |
2.5 |
3.5 |
386 |
129 |
63 |
75 |
MR82X |
8 |
2.5 |
- |
558 |
180 |
60 |
67 |
602Xzz |
8 |
2.8 |
4 |
552 |
177 |
60 |
71 |
MR63zz |
  3 |
6 |
2 |
2.5 |
209 |
74 |
71 |
80 |
683zz |
7 |
2 |
3 |
311 |
112 |
63 |
75 |
MR83zz |
8 |
2.5 |
3 |
395 |
141 |
60 |
67 |
693zz |
8 |
3 |
4 |
558 |
180 |
60 |
67 |
MR93zz |
9 |
2.5 |
4 |
571 |
189 |
56 |
67 |
603zz |
9 |
3 |
5 |
571 |
189 |
56 |
67 |
623zz |
10 |
4 |
4 |
631 |
219 |
50 |
60 |
633zz |
13 |
5 |
5 |
1301 |
488 |
40 |
48 |
MR74zz |
  4 |
7 |
2 |
2.5 |
255 |
108 |
60 |
67 |
MR84zz |
8 |
2 |
3 |
395 |
141 |
56 |
67 |
684zz |
9 |
2.5 |
4 |
641 |
227 |
53 |
63 |
MR104zz |
10 |
3 |
4 |
711 |
272 |
48 |
56 |
694zz |
11 |
4 |
4 |
957 |
350 |
48 |
56 |
604zz |
12 |
4 |
4 |
957 |
350 |
48 |
56 |
624zz |
13 |
5 |
5 |
1301 |
488 |
40 |
48 |
634zz |
16 |
5 |
5 |
1340 |
523 |
36 |
43 |
MR85zz |
  5 |
8 |
2 |
2.5 |
218 |
90 |
53 |
63 |
MR95zz |
9 |
2.5 |
3 |
431 |
169 |
50 |
60 |
MR105zz |
10 |
3 |
4 |
431 |
169 |
50 |
60 |
MR115zz |
11 |
- |
4 |
716 |
282 |
45 |
53 |
685zz |
11 |
3 |
5 |
716 |
282 |
45 |
53 |
695zz |
13 |
4 |
4 |
1077 |
432 |
43 |
50 |
605zz |
14 |
5 |
5 |
1329 |
507 |
40 |
50 |
625zz |
16 |
5 |
5 |
1729 |
675 |
36 |
43 |
635zz |
19 |
6 |
6 |
2336 |
896 |
32 |
40 |
MR106zz |
  6 |
10 |
2.5 |
3 |
496 |
218 |
45 |
53 |
MR126zz |
12 |
3 |
4 |
716 |
295 |
43 |
50 |
686zz |
13 |
3.5 |
5 |
1082 |
442 |
40 |
50 |
696zz |
15 |
5 |
5 |
1340 |
523 |
40 |
45 |
606zz |
17 |
6 |
6 |
2263 |
846 |
38 |
45 |
626zz |
19 |
6 |
6 |
2336 |
896 |
32 |
40 |
636zz |
22 |
7 |
7 |
3333 |
1423 |
30 |
36 |
MR117zz |
  7 |
11 |
2.5 |
3 |
455 |
202 |
43 |
50 |
MR137zz |
13 |
3 |
4 |
541 |
276 |
40 |
48 |
687zz |
14 |
3.5 |
5 |
1173 |
513 |
40 |
50 |
697zz |
17 |
5 |
5 |
1605 |
719 |
36 |
43 |
607zz |
19 |
6 |
6 |
2336 |
896 |
36 |
43 |
627zz |
22 |
7 |
7 |
3287 |
1379 |
30 |
36 |
637zz |
26 |
9 |
6 |
4563 |
1983 |
28 |
34 |
MR128zz |
 8 |
12 |
2.5 |
3.5 |
543 |
274 |
40 |
48 |
MR148zz |
14 |
3.5 |
4 |
817 |
386 |
38 |
45 |
688zz |
16 |
4 |
5 |
1252 |
592 |
36 |
43 |
698zz |
19 |
6 |
6 |
2237 |
917 |
36 |
43 |
608z |
22 |
7 |
7 |
3293 |
1379 |
34 |
40 |
628zz |
24 |
8 |
8 |
3333 |
1423 |
28 |
34 |
638zz |
28 |
9 |
9 |
4563 |
1983 |
28 |
34 |
679zz |
 9 |
14 |
3 |
4.5 |
919 |
468 |
36 |
42 |
689zz |
17 |
4 |
5 |
1327 |
668 |
36 |
43 |
699zz |
20 |
6 |
6 |
2467 |
1081 |
34 |
40 |
609zz |
24 |
7 |
7 |
3356 |
1444 |
32 |
38 |
629zz |
26 |
8 |
8 |
4575 |
1983 |
28 |
34 |
639zz |
30 |
10 |
10 |
4659 |
2080 |
24 |
30 |
6700zz |
 10 |
15 |
4 |
4 |
855 |
435 |
15 |
17 |
6800zz |
19 |
5 |
5 |
1716 |
840 |
37 |
43 |
6900zz |
22 |
6 |
6 |
2695 |
1273 |
34 |
41 |
6000zz |
26 |
8 |
8 |
4550 |
1970 |
30 |
36 |
6200zz |
30 |
9 |
9 |
5100 |
2390 |
24 |
30 |
6300zz |
35 |
11 |
11 |
8100 |
3450 |
22 |
26 |
6701zz |
 12 |
18 |
4 |
4 |
926 |
530 |
13 |
15 |
6801zz |
21 |
5 |
5 |
1915 |
1041 |
33 |
39 |
6901zz |
24 |
6 |
6 |
2886 |
1466 |
31 |
36 |
6001zz |
28 |
8 |
8 |
5100 |
2370 |
28 |
32 |
6201zz |
32 |
10 |
10 |
6800 |
3050 |
22 |
28 |
6301zz |
37 |
12 |
12 |
9700 |
4200 |
990 |
425 |
full ceramic Bearing MR74 Zro2 materials white color 4*7*2mm
Because of its high compressive strength, contact fatigue resistance that is superior to chrome steels, electrical resistivity and low coefficient of friction versus bearing steels, silicon nitride ceramic bearings can be widely used in aviation, aerospace, marine, petroleum, chemical, automotive, electronics, metallurgy, electric power, textile, pumps, medical equipment, scientific research, national defense, military and other domains.
They can be used as high-speed bearings, high temperature bearings, corrosion-resistant bearings, shielded bearings, electrical insulation bearings and so on.
681(1*3*1);681zz(1*3*1.5);Â 681XZZ(1.5*4*2);681x(1.5*4*1.2);Â 691(1*4*1.6)Â ;691XZZ(1.5*5*2.6);691X(1.5*4*2);Â 684ZZ(4*9*4);682ZZ(2*5*2.3);Â 682(2*5*1.5);682XZZ(2.5*6*2.6);683ZZ(3*7*3);Â 685ZZ(5*11*5);Â 686ZZ(6*13*5);687ZZ(7*14*5);688ZZ(8*16*5);Â 689zz(9*17*5);692ZZ(2*6*3);692xzz(2.5*7*3.5);695zz(5*13*4);696zz(6*15*5);Â 698zz(8*19*6);694ZZ(4*11*4);693ZZ(3*8*4);693(3*8*3);603ZZ(3*9*5);604ZZ(4*12*4);605ZZ(5*14*5);Â 606ZZ(6*17*6);607ZZ(7*19*6);625zz(5*16*5);626ZZ(6*19*6)Â ;627ZZ(7*22*7);629ZZ(9*26*8);608zz(8*22*7);Â 623zz(3*10*4);624zz(4*13*5);625ZZ(5*16*5);MR52zz(2*5*.2.5);MR52(2*5*2);MR62zz(2*6*2.5);MR72zz(2*7*3);MR63zz(3*6*2.5),MR63(3*6*2);MR83zz(3*8*3);Â MR93zz(3*9*4);Â MR74zz(4*7*2.5);MR74(4*7*2);MR84zz(4*8*3);MR104zz(4*10*4);MR85zz(5*8*2.5);MR85(5*8*2);MR95zz(5*9*3);MR105zz(5*10*4);Â MR115zz(5*11*4);Â MR106zz(6*10*3);Â MR126zz(6*12*4);Â MR117zz(7*11*3);Â MR137zz(7*13*4);MR128zz(8*12*3.5);Â MR148zz(8*14*4);MR148(8*14*3.5)
Â
model |
(d) |
(D) |
(b) |
 Cr(N) |
 Cor(N) |
 |
open |
zz |
grease |
oil |
*1000rpm |
681 |
1 |
3 |
1 |
- |
96 |
26 |
130 |
150 |
691 |
4 |
1.6 |
- |
141 |
37 |
100 |
120 |
681Xzz |
1.5 |
4 |
1.2 |
2 |
112 |
33 |
100 |
120 |
691Xzz |
5 |
2 |
2.6 |
169 |
50 |
85 |
100 |
601Xzz |
6 |
2.5 |
3 |
330 |
99 |
75 |
90 |
682zz |
 2 |
5 |
1.5 |
2.3 |
169 |
50 |
85 |
100 |
MR52zz |
5 |
2 |
2.5 |
169 |
50 |
85 |
100 |
692zz |
6 |
2.3 |
3 |
330 |
99 |
75 |
90 |
MR62zz |
6 |
2.5 |
2.5 |
330 |
99 |
75 |
90 |
MR72zz |
7 |
2.8 |
3 |
386 |
129 |
63 |
75 |
602zz |
7 |
2.8 |
3.5 |
386 |
129 |
60 |
71 |
682Xzz |
 2.5 |
6 |
1.8 |
2.6 |
209 |
74 |
71 |
80 |
692Xzz |
7 |
2.5 |
3.5 |
386 |
129 |
63 |
75 |
MR82X |
8 |
2.5 |
- |
558 |
180 |
60 |
67 |
602Xzz |
8 |
2.8 |
4 |
552 |
177 |
60 |
71 |
MR63zz |
  3 |
6 |
2 |
2.5 |
209 |
74 |
71 |
80 |
683zz |
7 |
2 |
3 |
311 |
112 |
63 |
75 |
MR83zz |
8 |
2.5 |
3 |
395 |
141 |
60 |
67 |
693zz |
8 |
3 |
4 |
558 |
180 |
60 |
67 |
MR93zz |
9 |
2.5 |
4 |
571 |
189 |
56 |
67 |
603zz |
9 |
3 |
5 |
571 |
189 |
56 |
67 |
623zz |
10 |
4 |
4 |
631 |
219 |
50 |
60 |
633zz |
13 |
5 |
5 |
1301 |
488 |
40 |
48 |
MR74zz |
  4 |
7 |
2 |
2.5 |
255 |
108 |
60 |
67 |
MR84zz |
8 |
2 |
3 |
395 |
141 |
56 |
67 |
684zz |
9 |
2.5 |
4 |
641 |
227 |
53 |
63 |
MR104zz |
10 |
3 |
4 |
711 |
272 |
48 |
56 |
694zz |
11 |
4 |
4 |
957 |
350 |
48 |
56 |
604zz |
12 |
4 |
4 |
957 |
350 |
48 |
56 |
624zz |
13 |
5 |
5 |
1301 |
488 |
40 |
48 |
634zz |
16 |
5 |
5 |
1340 |
523 |
36 |
43 |
MR85zz |
  5 |
8 |
2 |
2.5 |
218 |
90 |
53 |
63 |
MR95zz |
9 |
2.5 |
3 |
431 |
169 |
50 |
60 |
MR105zz |
10 |
3 |
4 |
431 |
169 |
50 |
60 |
MR115zz |
11 |
- |
4 |
716 |
282 |
45 |
53 |
685zz |
11 |
3 |
5 |
716 |
282 |
45 |
53 |
695zz |
13 |
4 |
4 |
1077 |
432 |
43 |
50 |
605zz |
14 |
5 |
5 |
1329 |
507 |
40 |
50 |
625zz |
16 |
5 |
5 |
1729 |
675 |
36 |
43 |
635zz |
19 |
6 |
6 |
2336 |
896 |
32 |
40 |
MR106zz |
  6 |
10 |
2.5 |
3 |
496 |
218 |
45 |
53 |
MR126zz |
12 |
3 |
4 |
716 |
295 |
43 |
50 |
686zz |
13 |
3.5 |
5 |
1082 |
442 |
40 |
50 |
696zz |
15 |
5 |
5 |
1340 |
523 |
40 |
45 |
606zz |
17 |
6 |
6 |
2263 |
846 |
38 |
45 |
626zz |
19 |
6 |
6 |
2336 |
896 |
32 |
40 |
636zz |
22 |
7 |
7 |
3333 |
1423 |
30 |
36 |
MR117zz |
  7 |
11 |
2.5 |
3 |
455 |
202 |
43 |
50 |
MR137zz |
13 |
3 |
4 |
541 |
276 |
40 |
48 |
687zz |
14 |
3.5 |
5 |
1173 |
513 |
40 |
50 |
697zz |
17 |
5 |
5 |
1605 |
719 |
36 |
43 |
607zz |
19 |
6 |
6 |
2336 |
896 |
36 |
43 |
627zz |
22 |
7 |
7 |
3287 |
1379 |
30 |
36 |
637zz |
26 |
9 |
6 |
4563 |
1983 |
28 |
34 |
MR128zz |
 8 |
12 |
2.5 |
3.5 |
543 |
274 |
40 |
48 |
MR148zz |
14 |
3.5 |
4 |
817 |
386 |
38 |
45 |
688zz |
16 |
4 |
5 |
1252 |
592 |
36 |
43 |
698zz |
19 |
6 |
6 |
2237 |
917 |
36 |
43 |
608z |
22 |
7 |
7 |
3293 |
1379 |
34 |
40 |
628zz |
24 |
8 |
8 |
3333 |
1423 |
28 |
34 |
638zz |
28 |
9 |
9 |
4563 |
1983 |
28 |
34 |
679zz |
 9 |
14 |
3 |
4.5 |
919 |
468 |
36 |
42 |
689zz |
17 |
4 |
5 |
1327 |
668 |
36 |
43 |
699zz |
20 |
6 |
6 |
2467 |
1081 |
34 |
40 |
609zz |
24 |
7 |
7 |
3356 |
1444 |
32 |
38 |
629zz |
26 |
8 |
8 |
4575 |
1983 |
28 |
34 |
639zz |
30 |
10 |
10 |
4659 |
2080 |
24 |
30 |
6700zz |
 10 |
15 |
4 |
4 |
855 |
435 |
15 |
17 |
6800zz |
19 |
5 |
5 |
1716 |
840 |
37 |
43 |
6900zz |
22 |
6 |
6 |
2695 |
1273 |
34 |
41 |
6000zz |
26 |
8 |
8 |
4550 |
1970 |
30 |
36 |
6200zz |
30 |
9 |
9 |
5100 |
2390 |
24 |
30 |
6300zz |
35 |
11 |
11 |
8100 |
3450 |
22 |
26 |
6701zz |
 12 |
18 |
4 |
4 |
926 |
530 |
13 |
15 |
6801zz |
21 |
5 |
5 |
1915 |
1041 |
33 |
39 |
6901zz |
24 |
6 |
6 |
2886 |
1466 |
31 |
36 |
6001zz |
28 |
8 |
8 |
5100 |
2370 |
28 |
32 |
6201zz |
32 |
10 |
10 |
6800 |
3050 |
22 |
28 |
6301zz |
37 |
12 |
12 |
9700 |
4200 |
990 |
425 |
FIAT Connecting Rod
The connecting rod is an important part of the car engine and plays a vital role in the overall function of the engine. Its main purpose is to connect the piston to the crankshaft and convert the reciprocating motion of the piston into the rotational motion of the crankshaft. The application of automotive engine connecting rods is crucial to the normal operation of the engine. It ensures power transfer, provides strength and durability, helps reduce weight, aids in engine balance and allows customization for various engine requirements
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