Home / Product / 6300 Series Deep Groove Ball Bearing / 638 ZZ/2RS Open 8x28x9mm High Precision Miniature Ball Bearing Deep Groove Ball Bearing
  • 638 ZZ/2RS Open 8x28x9mm High Precision Miniature Ball Bearing Deep Groove Ball Bearing
  • 638 ZZ/2RS Open 8x28x9mm High Precision Miniature Ball Bearing Deep Groove Ball Bearing

638 ZZ/2RS Open 8x28x9mm High Precision Miniature Ball Bearing Deep Groove Ball Bearing

Specification

MODEL SIZE BASIC RATED LOAD WEIGHT
(reference)
kg
INNER DIAMETER(d)
mm
OUTER DIAMETER(D)
mm
WIDTH CHAMFER(r)
mm
DYNAMIC
Cr N
STATIC
Cor N
OPEN TYPE
mm
SHIELD TYPE
mm
634 4 16 5 5 0.3 1880 680 0.0054
635 5 19 6 6 0.3 2810 1060 0.0089
636 6 22 7 7 0.3 3290 1360 0.0145
637 7 26 9 9 0.3 3340 1410 0.0258
638 8 28 9 9 0.3 4160 1780 0.0303
639 9 30 10 10 0.6 5120 2390 0.0371
6300 10 35 11 11 0.6 7640 3470 0.0530
6301 12 37 12 12 1 9700 4190 0.0600 
6302 15 42 13 13 1 11400 5430 0.0820 
6303 17 47 14 14 1 13580 6580
0.1150
6304 20 52 15 15 1.1 15940 7880 0.1490
6305 25 62 17 17 1.1 22380 11490 0.2320
6306 30 72 19 19 1.1 27000 15200 0.3490
6307 35 80 21 21 1.5 33500 19100 0.4542
6308 40 90 23 23 1.5 40500 24000 0.6394
6309 45 100 25 25 1.5 53000 32000 0.8363
6310 50 110 24 24 2 62000 38500 1.0822
6311 55 120 29 29 2 71600 45000 1.3900
6312 60 130 31 31 2.1 81900 52200 1.7000
6313 65 140 33 33 2.1 92700 59900 2.0800
6314 70 150 35 35 2.1 104000 68000 2.5200
6315 75 160 37 37 2.1 113000 77000 3.0200
6316 80 170 39 39 2.1 123000 86500 3.5900
6317 85 180 41 41 3 133000 97000 4.2300
6318 90 190 43 43 3 143000 107000 4.1900
6319 95 200 45 45 3 153000 119000 5.6700
6320 100 215 47 47 3 173000 141000 7.0000
6321 105 225 49 49 3 184000 153000 7.8400
6322 110 240 50 50 3 205000 179000 9.2200
6324 120 260 55 55 3 207000 185000 14.7800
6326 130 280 58 58 4 229000 214000 18.2000
6328 140 300 62 62 4 253000 246000 22.7600
6330 150 320 65 65 4 274000 284000 26.0000
6334 170 360 72 72 4 325000 355000 35.6000
6340 200 420 80 80 5 380000 445000 59.2000

Precision Class
Standard Precision Class
GB/T307.1 P0 P6 P5 P4
IS0492 CLASS0 CLASS6 CLASS5 CLASS4
AFBMA STD.20 ABEC1 ABEC3 ABEC5  ABEC7

Bearing Material
Chrome Steel: Chemical Composition of Chrome Steel,According to customer needs, stainless steel bearing materials avaiable
Steel No Chemical Composition%
C Si Mn P S Cr
GCr15 0.95-1.05 0.15-0.35 0.20-0.40 ≤0.027 ≤0.02 1.30-1.65

The Interchange of Chrome Steel No.
Country China ISO U.S.A Germany Japan Sweden
Bearings
Steel No.
GCr15 683/VXⅡ  (AISI)52100 (DIN)100Cr6 (Jis)SUJ2 SKF3

Professional manufacture of 638 ZZ/2RS Open 8x28x9mm High Precision Miniature Ball Bearing Deep Groove Ball Bearing.

15

Years Of Experience

We are an international custom 638 ZZ/2RS Open 8x28x9mm High Precision Miniature Ball Bearing Deep Groove Ball Bearing suppliers and OEM/ODM 638 ZZ/2RS Open 8x28x9mm High Precision Miniature Ball Bearing Deep Groove Ball Bearing company, specialized in the manufacturing deep groove ball bearing. Not only advanced automated production equipment, strict enterprise management, excellent talent team, and strong technology, rigorous process, but also we have a large number of precision grinding machine, mainly use high-quality bearing steel "GCr15" as raw material, and low-carbon alloy steel as attached. The first inspection, Operator self-inspection, inspect all the sizes; Inspect sampling, factory finished product testing and other processes, custom 638 ZZ/2RS Open 8x28x9mm High Precision Miniature Ball Bearing Deep Groove Ball Bearing quality has been Strict controlled. Our quality goal is the pursuit of excellence, achieve customer satisfaction.
We have professional design, development and manufacture of 638 ZZ/2RS Open 8x28x9mm High Precision Miniature Ball Bearing Deep Groove Ball Bearing and deep groove ball bearings. Our leading products are widely used in micro-electromechanical, household appliances, electric fans, washing machines, motorcycles, electric vehicles, medical equipment, sports equipment, textile and agricultural machinery, and process decorations, sliding doors and windows, children′s toys, trolleys, Package, skates, scooters, fitness equipment, various types of machinery sector!

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