Deep Groove Ball Bearings

Product Name:

Deep Groove Ball Bearings

Model :

Deep Groove Ball Bearings

Product Description:

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Deep Groove Ball Bearings
Bearing Material-Technical info
High carbon chrome bearing steel(Gcr15) is the standard material for bearing ring & rolling elements, also carbon steel & stainless steel will be used upon request. The chemical composition of Gcr15 is listed in the below table.

CHEMICAL COMPOSITION OF BEARING STEEL

Steel No.

Symbol

Chemical Composition(Wt%)

Gcr15

AISI 52100

0.95-1.05

1.30-1.65

0.15-0.35

0.2-0.4

<0.027

<0.02

THE CONTRAST OF GCR15 OF EACH COUNTRY

China

ISO

USA

Japan

Germany

France

Sweden

Gcr15

683/xv11

AISI

52100

JIS

SUJ2

DIN

100Cr6

100C6

SKF3

CAGES
In general, TIANHE cages are pressed steel ribbon cages & pressed steel snap cages. For extra-high speed application, synthetic-resin, stainless steel, nylons(Phenolic resins) will be used upon request.

SHIELDS & SEALS

SPCC is the main material for TIANHE shields, and carbon steel & stainless steel can be used upon request. Buna Nitrile is standard sealing material we use, while fluorocarbon, silicone, and Teflon seals are commonly specified for high temperatures.

LUBRICATION

Different types of greases can be supplied for shielded & sealed bearings and oil for open bearings.

TIANHE Bearings can meet tolerance grades from ABEC-1 to ABEC-7 as requested dimension tolerance & runout accurancy.
COMPARISION TABLE OF TOLERANCE GRADE:

Country	Standard		Tolerance	Grade
China	GB	0	6	5	4
American	ANSI	ABEC-1	ABEC-3	ABEC-5	ABEC-7
	ISO	0	6	5	4
Germany	DIN	P0	P6	P5	P4
Japan	JIS	P0	P6	P5	P4

The radual clearances of our bearings can be classified into C₂, Standard, C₃, C₄ & C₅ according to customer's request.

TABLE OF RADIAL CLEARANCE(µm)

Bore Diameter		C₂		Standard		C₃		C₄		C₅
over	to	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
2.5	6	0	7	2	13	8	23	-	-	-	-
6	10	0	7	2	13	8	23	14	29	20	37
10	18	0	9	3	19	11	25	18	33	25	45
18	24	0	10	5	20	13	28	20	36	28	48
24	30	1	11	5	20	13	28	23	41	30	53
30	40	1	11	6	20	15	33	28	46	40	64

NOTE
C₂Group clearance only for bearings over ABEC-3 accurancy.

Vibration and Noise
The vibration and noise of bearing in four classes Z₁, Z₂, Z₃ and Z₄, It is measured by the instrument of S09-1, For special requirement, it is measured by BVT-1 and classified as V₁, V₂, and V₃, The date are shown tables, different vibration & noise requirement should be menrioned in order.
TOLERANCE DATE FOR VIBRATION OF SINGLE BEARING

d mm	V			V₁			V₂			V₃
d mm	Low Brand	Medium Brand	High Brand	Low Brand	Medium Brand	High Brand	Low Brand	Medium Brand	High Brand	Low Brand	Medium Brand	High Brand
5	110	72	60	90	60	50	58	36	30	35	21	18
6	110	72	60	90	60	50	58	36	30	35	21	18
7	130	96	80	110	80	65	72	48	40	44	28	24
8	130	96	80	110	80	65	72	48	40	44	28	24
9	130	96	80	110	80	65	72	48	40	44	28	24
10	160	120	100	140	100	65	90	60	50	55	35	30
12	160	120	100	140	100	85	90	60	50	55	35	30
15	210	150	120	180	130	100	110	78	60	65	46	35
17	210	150	120	180	130	100	110	78	60	65	46	35
20	260	190	150	220	160	125	130	100	75	80	60	45
22	260	190	150	220	160	125	130	100	75	80	60	45
25	260	190	150	220	160	125	130	100	75	80	60	45
28	260	190	150	220	160	125	130	100	75	80	60	45
30	300	240	190	250	200	160	150	120	100	90	75	60
32	300	240	190	250	200	160	150	120	100	90	75	60
35	300	240	190	250	200	160	150	120	100	90	75	60
40	360	300	260	300	250	220	180	150	130	110	90	80

MAXIMUM VIBRATION ACCELERATION OF SINGLE BEARING

d mm	Diameter Series(0)				Diameter Series(2)					Diameter Series(3)
d mm	Z	Z₁	Z₂	Z₃	Z	Z₁	Z₂	Z₃	Z₄	Z	Z₁	Z₂	Z₃	Z₄
3	35	34	32	28	36	35	32	30	-	37	36	33	31	-
4	35	34	32	28	36	35	32	30	-	37	36	33	31	-
5	37	36	34	30	38	37	34	32	-	39	37	35	33	-
6	37	36	34	30	38	37	34	32	-	39	37	35	33	-
7	39	38	35	31	40	38	36	34	-	-	-	-	-	-
8	39	38	35	31	40	38	36	34	-	-	-	-	-	-
9	41	40	36	32	42	40	37	35	-	-	-	-	-	-
10	43	42	38	33	44	42	39	35	30	46	44	40	37	32
12	44	43	39	34	45	43	39	35	30	47	45	40	37	32
15	45	44	40	35	46	44	41	36	31	48	46	42	38	33
17	46	44	40	35	47	45	41	36	31	49	47	42	38	33
20	47	45	41	36	48	46	42	38	33	50	48	43	39	34
25	48	46	42	38	49	47	43	40	36	51	49	44	41	37
30	49	47	43	39	50	48	44	41	37	52	50	45	42	38
35	51	49	45	41	52	50	46	43	39	54	52	47	44	40
40	53	51	46	42	54	52	47	44	40	56	54	49	45	41
45	55	53	48	45	56	54	49	46	43	58	56	51	47	44
50	57	54	50	47	58	55	51	48	45	60	57	53	49	46
55	59	56	52	49	60	57	53	50	47	62	59	54	51	48
60	61	58	54	51	62	59	54	51	48	64	61	56	53	50

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