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  Technical Details

 The standard K Z. bearing components like outer and inner rings balls and  rollers material is high carbon chromium Gcr 15 Bearing steel which provide  uniform high hardness, toughness and abrasion resistance. Chemical  compositions are shown in the following table:

 MATERIALS

 1. Steel for Outer and Inner Rings or Rollers:

 
Material
Symbol
Chemical Composition%
Rockwell Hardness C Scale
High Carbon
Gcr 15
C
SI
Mn
P
S
Cr
Mo
62+3HRC
Chromium
0.95
0.15
0.50
005
0.025
1.30
----
Bearing Steel
1.10
0.35
Max.
Max.
Max.
1.60
----

 2. Steel for Retainers:

 The Standards Cage material is Low Carbon Cold Rolled Steel.
 CRCA Steel

C
si
Mn
P
S
0.12
O
0.5
0.04
0.05
Max.
Max.
Max.
Max.

 BOUNDARY DIMENSIONS
 International Standard Organisation (ISO)  has set up the international standards for  the bearing industry. The standardisation  of boundary dimensions and tolerance  allows the bearing manufacturer to utilize  the most modern production machines and  quality control techniques in producing  high quality bearing at an economical  price level. The KGB generally, follows the  metric measures for it’s manufacturing  program.
Ball Bearing Series 6000,Industrial Bearings Manufacturers,Automotive Ball Bearings,Miniature Ball Bearings,Single Row Ball Bearings Exporters

 SURFACE FINISH

 KGB has the equipment’s for super finishing of track of the bearing rings as  well as outer diameter of the rollers. Each bearing component i.e., inner and  outer Rings and rollers are super finished for the maximum achievement of  bearing life.

 TESTING FACILITIES

 At KGB Quality is an integral part of our culture and every effort is made to  ensure that customer get value for money. The company is having skilled  employees at all levels to bring their expertise in to the manufacturing of  quality bearings.

 KGB also comprised with the latest equipment’s like surface finish  measuring, Roundness Measuring and various electronic gauging equipment’s  for checking geometrical parameters such as concentricity, parallelism  roundness. Tolerance on our bearings confirms to ISI, ISO, DIN and ABEC –I  standards.

Ball Bearing Series 6000,Industrial Bearings Manufacturers,Automotive Ball Bearings,Miniature Ball Bearings,Single Row Ball Bearings Exporters

 At KGB it is standard routine to calibrate its all-testing equipment’s on  regular basis. We take utmost care to keep our quality standards at its  peak and maintain the same level forever .

 A detailed process drawing for each operation of manufacturing helps us to  maintain close tolerance during production.

 CLEARANCE

 KZ bearings are generally manufactured in normal class clearance but upon  customers specific request we supply bearings with C2, C3, C4 or C5  clearances.

 DEEP GROOVE BALL BEARINGS – SINGLE ROW, WITH SEAL (S)

Bearing Designation
Boundary Dimensions
Basic Load Rating
Limiting Speed
Mass
d
D
B
Dynamic
Static
Oil
Grease
Kg
mm
mm
mm
C
Co
Lubrication
Lubrication
kgf
kgf
RPM
RPM
607 ZZ 7 19 6 505 205 28000 21000 0.008
608 ZZ 8 22 7 750 315 26000 19000 0.012
609 ZZ 9 24 7 900 355 25000 18000 0.014
626 ZZ 6 19 6 525 199 28000 22000 0.008
627 ZZ 7 22 7 750 315 26000 20000 0.013
628 ZZ 8 24 8 900 355 24000 19000 0.017
629 ZZ 9 26 8 1030 440 22000 17000 0.02
 
6000 ZZ
10
26
8
290
156
28000
21000
0.019
6001 ZZ
12
28
8
315
176
26000
19000
0.022
6002 ZZ
15
32
9
440
225
24000
18000
0.031
6003 ZZ
17
35
10
475
285
22000
17000
0.04
6004 ZZ
20
42
12
735
455
19000
15000
0.068
6005 ZZ
25
47
12
880
570
17000
13000
0.078
6006 ZZ
30
55
13
1040
695
14000
10000
0.11
6007 ZZ
35
62
14
1250
865
12000
9000
0.16
6008 ZZ 40 68 15 1320 950 11000 8500 0.19
6009 ZZ 45 75 16 1660 1250 10000 8000 0.23
6010 ZZ
50
80
16
1700
1340
8500
7000
0.28
 
6200 ZZ
10
30
9
400
228
26000
19000
0.032
6201 ZZ
12
32
10
540
315
24000
18000
0.038
6202 ZZ
15
35
11
610
360
22000
17000
0.04
6203 ZZ
17
40
12
750
455
20000
16000
0.06
6204 ZZ
20
47
14
1000
630
18000
14000
0.1
6205 ZZ
25
52
15
1100
710
16000
12000
0.12
6206 ZZ
30
62
16
1530
1020
13000
9500
0.19
6207 ZZ
35
72
17
2000
1400
11000
8500
0.27
6208 ZZ 40 80 18 2400 1700 10000 8500 0.37
6209 ZZ 45 85 19 2600 1900 9000 7000 0.42
6210 ZZ 50 90 20 2750 2000 9000 6700 0.47
 
6300 ZZ
10
35
11
630
380
22000
18000
0.053
6301 ZZ
12
37
12
765
475
20000
17000
0.06
6302 ZZ
15
42
13
900
555
20000
16000
0.08
6303 ZZ
17
47
14
1060
670
19000
15000
0.11
6304 ZZ
20
52
15
1250
800
17000
13000
0.14
6305 ZZ
25
62
17
1760
1160
14000
10000
0.22
6306 ZZ
30
72
19
2200
1500
12000
9000
0.35
6307 ZZ 35 80 21 2600 1830 10000 8000 0.42
6308 ZZ 40 90 23 3200 2240 9000 7000 0.63
6309 ZZ 45 100 25 4150 3050 8000 6300 0.83
6310 ZZ 50 110 27 4800 3650 7500 6000 1.08

 STANDARD BEARING TOLERANCES

 TOLERANCE CLASS ABEC-I

 INNER RING Tolerance in um.

D
Ball Bearing Series 6000,Industrial Bearings Manufacturers,Automotive Ball Bearings,Miniature Ball Bearings,Single Row Ball Bearings Exporters Dmp
Vdp
V Dmp
Kia
Ball Bearing Series 6000,Industrial Bearings Manufacturers,Automotive Ball Bearings,Miniature Ball Bearings,Single Row Ball Bearings Exporters Bs
BS
diameter series
mm
7,8,9
0,1
2,3,4
over
incl.
high
low
Max.
Max.
Max.
Max.
Max.
1)0.6
2.5
0
-8
10
8
6
6
10
0
-40
12
2.5
10
0
-8
10
8
6
6
10
0
-120
15
10
18
0
-8
10
8
6
6
10
0
-120
20
18
30
0
-10
13
10
8
8
13
0
-120
20
30
50
0
-12
15
12
9
9
15
0
-120
20

 OUTER RING Tolerance in um.

D
Ball Bearing Series 6000,Industrial Bearings Manufacturers,Automotive Ball Bearings,Miniature Ball Bearings,Single Row Ball Bearings Exporters Dmp
V Dp 3)
Dmp 3)
Kea
Ball Bearing Series 6000,Industrial Bearings Manufacturers,Automotive Ball Bearings,Miniature Ball Bearings,Single Row Ball Bearings Exporters CS
V cs
Open Bearing
mm
Diameter series
7,8,9
0,1
2,3,4
0,1,2,3,4
over
Incl.
high
low
Max.
Max.
Max.
high
low
Max.
1) 2.5
6
0
-8
10
8
6
10
6
15
Identical to Bs and Vbs Of inner ring of same bearing.
6
18
0
-8
10
8
6
10
6
15
------
18
30
0
-9
12
9
7
12
8
15
------
30
50
0
-11
14
11
8
16
8
20
------
50
80
0
-13
16
13
10
20
10
25
------
80
120
0
-15
19
19
11
26
11
35
------

 1) This diameter is included in the group.
 2) No values have been established for diameter series 7,8,9,0 and 1.
 3) Applies before mounting and after removal of internal of external snap ring.

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