Logo - Manufacturer of Bearing rollers - Vishal Bearing Pvt. Ltd.
Factory & Process Tour
View Photo Gallery

Company
Profile
Technical
Details
powerpoint slideshow
Bearing Roller Technical Specification - PDF Format
Size 2.75 MB
Size 136 KB
 
 
Technical Specification of Bearing Rollers

SPECIFICATION OF TAPER ROLLER

Sr. No. PARAMETER TOLERANCE
1 DIAMETER (+/-) 2μm (Size Variation Within 3μm)
2 TAPER (+/-) 2μm (Maximum)
3 OVALITY 1μm (Maximum)
4 LENGTH (Tolerance on Basic Size) +50 To -200μm
5 FACE SQUARENESS 8μm (Maximum)
6 OD S/ROUGHNESS (Ra) 0.10μm (Maximum)
7 FACE S/ROUGHNESS (Ra) 0.20μm (Maximum)
8 ROUNDNESS (Filter : 1-15) 1μm (Maximum)
9 HARDNESS 60 To 64 HRC
10 VISUAL INSPECTION FREE FROM RUST, DENT MARKS, SPIRAL LINES ON OD, OUT OF RADIUS
11 MATERIAL SAE 52100
12 MICRO STRUCTURE FINE TEMPERED MARTENSITE WITH UNDISOLVED CARBIDES
13 CROWNING (Pt) DEPEND ON GROUND LENGTH
NOTE: > The Crowning value is to be consider only for 75 to 80% of centre Roller length.
Ground Length (MM)
CROWNING (Pt) μm
0 TO 15
1 TO 2
15 TO 25
1 TO 3
25 TO 30
1 TO 4
30 TO 35
1 TO 5
25 TO 45
2 TO 6
45 TO 50
2 TO 7
50 ABOVE
3 TO 8


SPECIFICATION OF CYLINDRICAL ROLLER
Sr.
No.
PARAMETER TOLERANCE
1 DIAMETER  (+/-) 1.5μm (Size Variation Within 2μm)
2 OVALITY 1μm (Maximum)
3 LENGTH (Tolerance on Basic Size) - 20μm (Maximum), Grouping within 6μm
4 FACE SQUARENESS 6μm (Maximum)
5 OD S/ROUGHNESS (Ra) 0.10μm (Maximum)
6 FACE S/ROUGHNESS (Ra) 0.20μm (Maximum)
7 ROUNDNESS (Filter : 1-15) 1μm (Maximum)
8 HARDNESS 60 To 64 HRC
9 VISUAL INSPECTION FREE FROM RUST, DENT MARKS, SPIRAL LINES ON OD, OUT OF RADIUS
10 MATERIAL SAE 52100
11 MICRO STRUCTURE FINE TEMPERED MARTENSITE WITH UNDISOLVED CARBIDES
12 CROWNING (Pt) DEPEND ON GROUND LENGTH
NOTE: > The Crowning value is to be consider only for 75 to 80% of centre Roller length. Ground Length (MM) CROWNING (Pt) μm
MIN.
MAX.
MIN.
MAX.
6
7
1
3
8
10
1.5
5
11
14
2
7
15
17
3
9
18
19
5
10
20
22
7
14
23
7
15
24
25
8
16
26
8
17
27
28
8
18
29
30
9
18
31
32
9
19


SPECIFICATION OF SPHERICAL ROLLER
Nominal Dia. Of Roller
Wobble of Face
Tol. On Length
Conicity
Ovality
Surface Roughness on OD.
Surface Roughness on Face.
Hardness
Material
Max.
Min.
0 - 10
8μm
-0
-15
12μm
1.5μm
0.15
0.30
60To 64 HRC
SAE 52100
10 - 20
10μm
-0
-20
15μm
2.0μm
0.20
0.40
20 - 40
12μm
-0
-30
18μm
2.5μm
0.25
0.50
40 -     
20μm
-0
-40
25μm
3.0μm
0.25
0.60
VISUAL INSPECTION FREE FROM RUST, DENT MARKS, SPIRAL LINES ON OD, OUT OF RADIUS
MICRO STRUCTURE FINE TEMPERED MARTENSITE WITH UNDISOLVED CARBIDES