Ningbo Fangyuan Bearing Co., Ltd.

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Products



Miniature Ball Bearing (MR Series)
One kind of mini deep groove ball bearing with ultra small bore diameter below 9mm.


Features

Seal type

Open (without cover), metal shields (ZZ), rubber seals (2RS).


Precision grade

ABEC-1, ABEC-3, ABEC-5, ABEC-7, ABEC-9, the larger the number, the higher the precision grade.


Cage

Cage is an important parts. Usually stainless steel cage will be used in deep groove ball bearings, but there are customers who prefer nylon cage and bronze cage.


Application

Motor, fitness equipment, telecommunication equipment, instrument and apparatus, computer, auto motor, precision instrument, machine equipment industries etc.


Tech Specs

Metric miniature ball bearing:

Width(b) Limiting speeds
 Bearing

No.

 ID(d) OD(D) open zz Dynamic Load

Cr(N)

 Static Load Cor(N) Grease Oil
*1000rpm
681 1 3 1 – 96 26 130 150
691 4 1.6 – 141 37 100 120
681Xzz 4 1.2 2 112 33 100 120
691Xzz 1.5 5 2 2.6 169 50 85 100
601Xzz 6 2.5 3 330 99 75 90
682zz 5 1.5 2.3 169 50 85 100
MR52zz 5 2 2.5 169 50 85 100
692zz 2 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 6 1.8 2.6 209 74 71 80
692Xzz 2.5 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 6 2 2.5 209 74 71 80
683zz 7 2 3 311 112 63 75
MR83zz 3 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 7 2 2.5 255 108 60 67
MR84zz 8 2 3 395 141 56 67
684zz 4 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 8 2 2.5 218 90 53 63
MR95zz 9 2.5 3 431 169 50 60
MR105zz 5 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 10 2.5 3 496 218 45 53
MR126zz 12 3 4 716 295 43 50
686zz 6 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 11 2.5 3 455 202 43 50
MR137zz 13 3 4 541 276 40 48
687zz 7 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 12 2.5 3.5 543 274 40 48
MR148zz 14 3.5 4 817 386 38 45
688zz 8 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 14 3 4.5 919 468 36 42
689zz 9 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 15 4 4 855 435 15 17
6800zz 19 5 5 1716 840 37 43
6900zz 10 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 18 4 4 926 530 13 15
6801zz 12 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

Inch miniature ball bearing:

Width(b) Limiting speeds
Bearing

No.

 ID(d) OD(D) open zz Dynamic

Load

Cr(N)

 Static Load Cor(N) Grease Oil
*1000rpm
R1-4zz 1.984 6.35 2.38 3.571 284 96 67 80
R133zz 2.38 4.762 1.588 2.38 144 53 80 95
R1-5zz 2.38 7.938 2.779 3.571 552 176 60 71
R144Jzzs 6.35 2.38 2.779 311 110 67 80
R144zzs 3.175 6.35 2.38 2.779 284 96 67 80
R2-5zz 7.938 2.779 3.571 558 180 60 67
R2-6zz 9.525 2.779 3.571 640 227 53 63
R2zz 9.525 3.967 3.967 631 219 56 67
R2Azz 12.7 4.366 4.366 640 227 53 63
R155zzs 0.3967 7.938 2.779 3.175 359 150 53 63
R156zzs 7.938 2.779 3.175 359 150 53 63
R166zzs 4.762 9.525 3.175 3.175 709 272 50 60
R3zz 12.7 3.967 4.978 1301 488 43 53
R3Azz 15.875 4.978 4.978 1480 621 38 45
R168zzs 9.525 3.175 3.175 373 172 48 56
R188zz 6.35 12.7 3.175 4.762 1082 442 40 50
R4zz 15.875 4.978 4.978 1480 621 38 45
R4Azz 19.05 5.558 7.142 2336 896 36 43
R1810zzs 7.938 12.7 3.967 3.967 542 276 40 48
R6zz 9.525 22.225 5.558 7.142 3332 1422 32 38
R1038zz 9.525 15.875 3.967 3.967 815 411 28 31
R1212zz 12.7 19.05 3.967 3.967 898 524 21 26