Technical Data- Yuyao Kangtian Bearing Co., Ltd

Bearing Material

Classes Tolerances

Bearing Clearance

Lubricating Grease

Vibration and Noise

Rust resisting and Packing

Ring and Ball Package Material.

Bearing rings and rolling elements usually use high carbon chromium bearing steel GCr15(Table 1).

The chemical composition of GCr15 has uniform spcifications all over the world.E.g.American AISI 52100,German DIN100Cr6,Japanese SUJ2.

It also uses stainless steel with fine anti-corrosive performance according to special application.Please refer to Tab 2 for the chemical composition.

Table 1 High carbon chromium bearing steel
Specification	Trademark	Chemical composition(%)
Specification	Trademark	C	Si	Mn	Cr	S	P	Mo
GB/T 18524	GCr15	0.95~1.05	0.15~0.35	0.25~0.45	1.40~1.65	≤0.025	≤0.025	~
JIS G 4805	SUJ2	0.95~1.10	0.15~0.35	≤0.05	1.30~1.60	≤0.025	≤0.025	≤0.08
ASTM A 295	52100	0.98~1.10	0.15~0.35	0.25~0.45	1.30~1.60	≤0.025	≤0.025	≤0.10

Table 2 The chemical composition of stainless steel for rolling bearing
Specification	Trademark	Chemical composition(%)
Specification	Trademark	C	Si	Mn	Cr	P	S	Mo
GB 3086	9Cr18	0.90~1.00	≤0.08	≤0.08	17.00~19.00	≤0.035	≤0.030	~
JIS G 4303	SUS 440 C	0.95~1.20	≤1.00	≤1.00	16.00~18.00	≤0.040	≤0.030	≤0.75

Cage material

The pressed cage

The pressed cage material is low carbon steel.

Table 3 The chemical composition of steel sheet and carbon steel for bearing cage
Difference	Specification	Trademark	Chemical composition(%)
			C	Si	Mn	P	S
Steel sheet for pressed cage	JIS G 3141	SPCC	≤0.12	~	≤0.50	≤0.04	≤0.045

Nylon cage

Table 4 The technical requirements for nylon cage
Number	Description		PA66-GF25	PA66-GF30	PA66-GF15	PA66
1	Appearance		Fine granulation, without obvious color difference, without color particle.
2	Melting point(℃)		≥255
3	Density(g/cm³)		1.32	1.36	1.23	1.14
4	Water absorbing rate (%)		≤1	≤1	≤1	≤1.5
5	Corstriction rate ( %)		0.55	0.50	0.75	1.5~2.5
6	Tensile strength ( MPa)		≤150	≤160	≤110	≤70
7	Impact strength (KJ/㎡)		≥42	≥50	≥35	≥60
8	Notch impact strengh (KJ/㎡)		≥7	≥8	≥6	≥5
9	Ball indentation hardness (MPa)		≥200	≥210	≥170	≥130
10	Flexible module(GPa)		≥6	≥7	≥5	≥2.5
11	Thermal deformation temperature [(1.8MPa)℃]		≥240	≥240	≥240	≥70
12	Linear expansion coefficient (10-5/℃)		2~3	1.5~2	3~4	7~10
13	Working temperature range (℃)		-40~120	-40~120	-40~110	-40~90
14	Heat aging properties	a. Tensile strength (MPa)	≥110	-	-	-
		b. Impact strengh(KJ/㎡)	≥15	-	-	-
		c. Notch impact strengh (KJ/㎡)	≥6	-	-	-
Note.For PA66-GF25、PA66-GF30、PA66-GF15,the content of glass fibre is respectively,25%、30% and 15%

P0、P6、P5、P4 Classes tolerances- inner ring(Assembliecl) μm
Tolerances Class	d Nominal bore diameter mm		Δdmp Deviation of mean bore diameter		Δds Deviation a single bore diameter		Vdp Variation of single bore diameter			Vdmp Variation of mean bore diameter	Kia Radial runout of inner ring	Sd Axialrunout of inner ring face with respect to bare	Sia* Axial run out of inner ring	ΔBS Deviation of inner ring width		VBS Variation of inner ring width
							Diameter series
							9**	0、1**	2、3、4
							(7、8、9)	(1、7)	2、3、4	/Θ/	↗	↗	↗			//
	over	incl	max	min	max	min	max			max				max	min	max
PO *** (ABEC-1)	0.6	2.5	0	-8			10	8	6	6	10			0	-40	12
	2.5	10		-8			10	8	6	6	10	10	20		-120	15
	10	18		-8			10	8	6	6	10	14	20		-120	20
	18	30		-10			13	10	8	8	13	16	24		-120	20
	18	30		-10			13	10	8	8	13	16	24		-120	20
	30	50		-12			15	12	9	9	15				-120	20
	50	80		-15			19	19	11	11	20				-150	25
P6 (ABEC-3)	0.6	2.5	0	-7			9	7	5	5	5			0	-40	12
	2.5	10		-7			9	7	5	5	6	8	10		-120	15
	10	18		-7			9	7	5	5	7	8	10		-120	20
	18	30		-8			10	8	6	6	8	9	12		-120	20
	30	50		-10			13	10	8	8	10				-120	20
	50	80		-12			15	15	9	9	10				-150	25
P5 (ABEC-5)	0.6	2.5	0	-5			5	4		3	4	7	7	0	-40	5
	2.5	10		-5			5	4		3	4	7	7		-40	5
	10	18		-5			5	4		3	4	7	7		-80	5
	18	30		-6			6	4		3	4	8	8		-120	5
	30	50		-8			8	4		4	5	8	8		-120	5
	50	80		-9			9	4		5	5	8	8		-150	6
P4 (ABEC-7)	0.6	2.5	0	-4	0	-4	4	4		2	2.5	3	3	0	-40	2.5
	2.5	10		-4		-4	4	4		2	2.5	3	3		-40	2.5
	10	18		-4		-4	4	4		2	2.5	3	3		-80	2.5
	18	30		-5		-5	5	4		2.5	3	4	4		-120	2.5
	30	50		-6		-6	6	4		3	4	4	4		-120	3
	50	80		-7		-7	7	4		2.5	4	5	4		-150	4

Notes:

The table are abstracted from GB/T307.1 Rolling bearing Radial bearing tolerance,Minitrue ball bearing and accessory complementary techincal condition in JB/T53415(JB/CQ124).

Sia values for P0、P6 Classes are not dictated in GB/T307.1 but they have been dictated in JB/T53415 and JB/T 10336.

Brackets are diameter series symbols in original national standard(7,8 series are not dictated in new standard).

P0、P6、P5、P4 Class tolerance -outer ring(Assembliecl) μm
Tolerance class	D Outer dlameter mm		ΔDmp Deviation of mean outside diameter		ΔDs Deviation of a single outside diameter		VDp Variation of a single outside diameter				VDmp Variation of mean outside diameter	Kea Radial run out af outer ring	Sd Variation of outside generatrix inclination with ond face	Sea * Axlal runou of outer ring	ΔCS Deviation of outer ring width		VCS Variation of outer ring width
							Open			close
							9**	0、1**	2、3、4	PO (2、3、4)
							(7、8、9)	(1、7)	2、3、4	0、1、2、3、	/Θ/	↗	V	↗
	over	incl	max	min	max	min	max				max				max	min	max
PO (ABEC-1)	2.5	6	0	-8			10	8	6	10	6	15		24	ΔBS & VBS same with bearing's inner ring
	6	18		-8			10	8	6	10	6	15	10	30
	18	30		-9			12	9	7	12	7	15	14	36/40
	30	50		-11			14	11	8	16	8	20	16	40
	50	80		-13			16	13	10	20	10	25		40
	80	120		-15			19	19	11	26	11	35		45
P6 (ABEC-3)	2.5	6	0	-7			9	7	5	9	5	8		12
	6	18		-7			9	7	5	9	5	8	10	15
	18	30		-8			10	8	6	10	6	9	10	20
	30	50		-9			11	9	7	13	7	10	10	20
	50	80		-11			14	11	8	16	8	13		20
	80	120		-13			16	16	10	20	10	18		22
P5 (ABEC-5)	2.5	6	0	-5			5	4			3	5	8	8
	6	18		-5			5	4			3	5	8	8
	18	30		-6			6	5			3	6	8	8
	30	50		-7			7	5			4	7	8	8
	50	80		-9			9	7			5	8	8	10
	80	120		-10			10	8			5	10	9	11
P4 (ABEC-7)	2.5	6	0	-4	0	-4	4	3			2	3	4	5
	6	18		-4		-4	4	3			2	3	4	5
	18	30		-5		-5	5	4			2.5	4	4	5
	30	50		-6		-6	6	5			3	5	4	5
	50	80		-7		-7	7	5			3.5	5	4	5
	80	120		-8		-8	8	6			4	6	5	6

Notes:

The table are abstracted from GB/T307.1 Rolling bearing Radial bearing tolerance,Minitrue ball bearing and accessory complementary techincal condition in JB/T53415(JB/CQ124).

Sia values for P0、P6 Classes are not dictated in GB/T307.1 but they have been dictated in JB/T53415 and JB/T 10336.

Brackets are diameter series symbols in original national standard(7,8 series are not dictated in new standard).

A detail list of the commonly-used lubricating grease

Manufacturer	Brand	Viscosity	Base oil	Dropping point	Consistency	Working temperature range	Characteristics
EXXonMobil (ESSO)	Beacon325	Lithium	Diester	193	290	-60~+120	Low Temp.
	AC205	Natrium	Mineral	-		-25~+120	Room Temp.
	AndokB	Natrium	Mineral	260	280	-40~+120	Room Temp.
	Andok260	Natrium	Mineral	200	250	-30~+150	Room Temp.
	Arapen RB300	Lithium	Mineral	200	250	-30~+100	Room Temp.
	Polyrex EM	Dimeric Polyurea	Mineral	260	288	-40~+180	High Temp., Low noise
	Polyrex EP2	Polyurea	Mineral	280	280	-40~+180	High Temp., Low noise
	UNIREX N2	Complex lithium	Mineral	250	280	-40~+180	High Temp., Low noise
	UNIREX N3	Complex lithium	Mineral	250	235	-40~+180	High Temp., Low noise

Mobil Oil	Mobilux2	Lithium	Mineral	190	280	-20~+120	Room Temp.
	Mobil22	Lithium	Diester-mineral	192	274	-50~+140	Low Temp.
	Mobil28	Bentonite	Synthetic hydrocarbons	>260	280	-60~+180	High & Low Temp.
	Mobilplex47	-	Mineral	260	280	-20~+120	Room Temp.
	Mobilth SHC100	Lithium	Synthesis	250	265~295	-40~+170	High Speed
	Mobilth SHC220	Lithium	Synthesis	250	265~295	-40~+170	Multipurpose
	MobilitempSHC22	clay	Synthesis	250	265~295	-50~+180	High-speed, High Temp.
	Mobilitemp SHC100	clay	Synthesis	250	265~295	-50~+200	High-speed, High Temp.

Kyodo Yushi	NS Hilube	Lithium	Diester	190	255	-40~+130	Room Temp.
	Multemp PS2	Lithium	Diester	189	280	-50~+110	Low Temp.
	Multemp(Ns7)SRL	Lithium	Ester	191	245	-40~+150	Low noise
	Multemp SC-A	Polyurea	-	260	280	0~+160	Room Temp.
	Multemp ET150	Polyurea	Mineral	>260	280	-10~+160	Room Temp.
	Oneluba	Lithium	Diester-Mineral	198	270	-10~+110	Room Temp.
	Adrex	Lithium	Mineral	198	300	-10~+120	Room Temp.
	Parmax	Complex Calcium	Mineral	180	300	-10~+120	Room Temp.
	Emalube 1130	Lithium	Mineral	260	300	-10~+130	Room Temp.
	Unilube DM	Lithium	Mineral	185	332	-10~+110	Room Temp.
	Alumix HD 1	-	Mineral	247	335	0~+120	Room Temp.
	Multemp LTS	Lithium	Ester	250	201	-60~+130	Low Temp.
	Multemp SRH	Lithium	Ester	250	201	-40~+150	Low Temp.
	Multemp SB-M	Dimeric Polyurea	Synthesis	220	260	-40~+200	High Temp., High speed
	Multemp SC-C	Dimeric Polyurea	Synthesis	280	300	-40~+200	High Temp., water pump
	ET-K	Dimeric Polyurea	Synthetic oils/greases	260	300	-40~+200	High Temp., High speed alternator.
	ET-100K	-	Synthesis	260	280	-40~+200	High Temp.
	ET-R	-	Synthesis	260	280	-40~+200	High Temp., Low Temp. torque is good.
	Multemp FF-SL	polytetrafluoroethylene	Fluorinated	-	300	-30~+250	High Temp., Corrosion resistant
	Multemp FF-RM	polytetrafluoroethylene	Fluorinated	-	290	-30~+250	High Temp., Corrosion resistant
	Multemp CPL	Aromatic Alcohol	Ester	260	300	-40~+200	High Temp.
	Multemp 8158	Aromatic Alcohol	Ester	260	310-340	-45~+200	High Temp. High load

Chevron	Chevton SRL-2	Polyurea	Mineral	243	280	-30~+150	High Temp.
	PolystarSynthetic2#	Polyurea	Mineral	245	288	-30~+180	High Temp.
	RPM GreasSR1-2	Polyurea	Mineral	243	280	-30~+150	Room Temp., High Temp.
	RPMGreasSRI OEM	Polyurea	Mineral	243	280	-30~+150	Room Temp., High Temp.
	Starple EP2	Lithium	Mineral	290	280	-25~+130	Extreme Pressure
	Molykote 33M	Lithium	Silicon oil	210	260	-70~+180	High & Low Temp.
	Molykote 44M	Lithium	Silicon oil	204	260	-40~+200	High Temp.
	Staburags NBU12	Barium	Mineral	220	270	-35~+150	Room Temp.

A detail list of the commonly-used lubricating grease

Manufacturer	Brand	Viscosity	Base oil	Dropping point	Consistency	Working temperature range	Characteristics

Kluber	Isoflex Super LDS15	-	Dilipid		280	-60~+130	Low Temp.
	Isoflex Super TEL	Lithium	Lipids - Mineral	190		-65~+70	Low Temp.
	lsoflex LDS18 SpecialA	Lithium	Dilipid		280	-60~+130	Low Temp.
	Isoflex PDB38 Cx100	Lithium	Ester	190		-70~+120	Low Temp.
	Isoflex Topas NB52	Barium	Synthetic hydrocarbons		280	-60~+170	High & Low Temp.
	Barrierta L55/2	polytetrafluoroethylene	Fluorinated	240	280	-35~+260	High Temp.
	Barrierta EL	polytetrafluoroethylene	Fluorinated		280	-50~+180	High & Low Temp.
	Barrierta IMI/V	polytetrafluoroethylene	Fluorinated		280	-50~+220	High & Low Temp.
	UnisilikonTK44N2	polytetrafluoroethylene	Silicon oil			-60~+230	High & Low Temp.
	IsoflexNCA15	Na-Komplex	Ester-Mineral		265-295	-40~+130	High speed
	AsonicHQ72-102	Specialty calcium	Ester	180	250-280	-40~+180	High & Low Temp., Low noise
	PetamoGHY133	Polyurea	Synthetic mineral oil	240	250-280	-25~+150	Room Temp.
	PetamoGHY443	Polyurea	Ester	240	250-280	-20~+180	High Temp. , long- life
	Nok Kluber Alltim JFU152	Polyurea	Ester	250	290-330	-40~+190	High Temp.
	Nok Kluber Alltim JFU152	Polyurea	Ester	250	290-330	-40~+190	High Temp.

Shell	Alvania R12	Lithium	Mineral	182	272	-25~+120	Room Temp.
	Alvania NO.3	Lithium	Mineral	183	233	-20~+135	Room Temp.
	Alvania RA	Lithium	Mineral	183	252	-25~+120	Room Temp.
	Alvania EP2	Lithium	Mineral	185	276	-10~+100	Room Temp.
	Surilight2	Lithium	Mineral	196	273	-20~+120	Room Temp.
	Dolium R	-	Mineral	238	281	-20~+140	Room Temp.
	Aeroshell NO.5	Microgel	Mineral	260	282	-10~+130	Room Temp.
	Aeroshell NO.7	Microgel	Mineral	>260	288	-70~+150	Low Temp.
	Aeroshell NO.15A	polytetrafluoroethylene	Dilipid	260	280	-70~+260	High & Low Temp.
	Alvani RLQ2	-	Mineral	195	266	-50~+150	Low noise, High speed

Dow Corning	AsonicGLY32	Lithium	Synthesis	190	265-295	-50~+140	Low Temp.
	AsonicGLY72	Polyhamstoff	Lipids - Mineral	250	250-280	-40~+180	High Temp., Low noise
	Molykote 55M	Lithium	Silicon oil			-55~+165	Low Temp.
	Molykote BR2 plus	Lithium	Mineral		280	-30~+150	High speed
	Molykote FS1292	polytetrafluoroethylene	Silicon	>232	310	-40~+200	High Temp.
	Molykote FS3451	polytetrafluoroethylene	Silicon	>260	285	-40~+230	Chemical Solvent Resistant
	Molykote EM50L	Lithium	Synthesis	195	325	-40~+150	Low noise
	Molykote Bg20	Lithium	Synthesis	230	265-295	-50~+180	High Temp., High-speed

Lubcon	Turmogrease N2	Polyurea	Synthetic oils/greases	>250	280	-40~+120	General purpose
	Tubteksonic BQg	Lithium	Mineral	250	280	-35~+130	Low noise
	Turmogrease SHL182	Lithium	Synthetic oils/greases	250	280	-70~+150	Low Temp., High speed
	Turmogrease SHL252	Specialty lithium	Synthetic oils/greases	220	280	-40~+260	High speed
	Turmogrease TML 15	Lithium	Ester	290	280	-35~+160(180)	High Temp., High speed
	Turmogrease CX112K	Lithium	Synthetic mineral oil	190	265-295	-35~+140(160)	Low noise
	Turmogrease Nb1300	Polyurea	Synthetic oils/greases	250	280	-40~+150	High Temp., Ligh load.

Sinopec	WTH	Polyurea	Ester	280	225	-50~+180	Low noise, High speed.
	HTHS	Complex lithium	Semi-Synthesis	321	278	-30~+160	Abrasion-resistant, High Temp.
	Hanggu2	Lithium	Mineral	198	239-281	-20~+120	General purpose

The vibration and noise of bearings are classified in four classes Z1, Z2, Z3, andZ4. It is measured by the instrument of S0910. For special requirement, it is measured by BVT-1 and classified as V1,V2,V3,and V4. The data are shown in below tables, different vibration & noise requirement should be mentioned in order.

Vibration limit value of the deep groove ball bearing (speed): Tolerance in μm/s

Bore Diameter d/mm	V			V1			V2			V3			V4
Bore Diameter d/mm	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency
3	80	44	44	60	35	32	48	26	22	31	16	15	28	10	10
4	80	44	44	60	35	32	48	26	22	31	16	15	28	10	10
5	110	72	60	74	48	40	58	36	30	35	21	18	32	11	11
6	110	72	60	74	48	40	58	36	30	35	21	18	32	11	11
7	130	96	80	92	66	54	72	48	40	44	28	24	38	12	12
8	130	96	80	92	66	54	72	48	40	44	28	24	38	12	12
9	130	96	80	92	66	54	72	48	40	44	28	24	38	12	12
10	160	120	100	120	80	70	90	60	50	55	35	30	45	14	15
12	160	120	100	120	80	70	90	60	50	55	35	30	45	14	15
15	210	150	120	150	100	85	110	78	60	65	46	35	52	18	18
17	210	150	120	150	100	85	110	78	60	65	46	35	52	25	25
20	260	190	150	180	125	100	130	100	75	80	60	45	60	25	25
22	260	190	150	180	125	100	130	100	75	80	60	45	60	30	32
25	260	190	150	180	125	100	130	100	75	80	60	45	60	30	32
28	260	190	150	180	125	100	130	100	75	80	60	45	60	35	40
30	300	240	190	200	150	130	150	120	100	90	75	60	70	35	40
32	300	240	190	200	150	130	150	120	100	90	75	60	70	35	40
35	300	240	190	200	150	130	150	120	100	90	75	60	70	42	45
40	360	300	260	240	240	160	180	150	130	110	90	80	82	50	50
45	360	300	260	240	240	160	180	150	130	110	90	80	82	60	60
50	420	320	320	280	280	200	210	160	160	125	100	100	95	70	70
55	420	360	360	280	280	200	210	180	180	125	110	110	95	70	70
60	480	360	440	320	320	240	240	180	200	145	110	130	100	80	80

Bore Diameter d/mm	V			V1			V2			V3			V4
Bore Diameter d/mm	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency	Low Frequency	Medium Frequency	High Frequency
65	300	260	420	180	160	240	130	100	150	105	80	105	50	50	75
70	360	310	460	200	180	280	150	120	200	110	90	135	58	58	88
75	360	310	460	200	180	280	150	120	200	110	90	135	58	58	88
80	420	360	540	240	210	320	180	120	240	130	110	160	65	65	100
85	420	360	540	240	210	320	180	150	240	130	110	160	65	65	100
90	480	420	600	290	250	370	210	180	270	145	125	180	75	75	115
95	480	420	600	290	250	370	210	180	270	145	125	180	75	75	115
100	560	490	670	340	300	420	250	215	310	170	145	200	88	88	135
105	560	490	670	340	300	420	250	215	310	170	145	200	88	88	135
110	640	570	750	400	350	480	290	260	350	190	175	225	100	100	160
120	640	570	750	400	350	480	290	260	350	190	175	225	100	100	160

Vibration limit value of the deep groove ball bearing (acceleration): Tolerance in dB

Bore Diameter d/mm	Single Bearing Vibration speed Grade can not be over the following Values
	Diameter Series (0)					Diameter Series (2)					Diameter Series (3)
	Z	Z1	Z2	Z3	Z4	Z	Z1	Z2	Z3	Z4	Z	Z1	Z2	Z3	Z4
3	35	34	32	28	24	36	35	32	30	-	37	36	33	31	-
4	35	34	32	28	24	36	35	32	30	-	37	36	33	31	-
5	37	36	34	30	26	38	37	34	32	-	39	37	35	33	-
6	37	36	34	30	26	38	37	34	32	-	39	37	35	33	-
7	39	38	35	31	27	40	38	36	34	-	-	-	-	-	-
8	39	38	35	31	27	40	38	36	34	-	-	-	-	-	-
9	41	40	36	32	28	42	40	37	35	-	-	-	-	-	-
10	43	42	38	33	28	44	42	39	35	30	46	44	40	37	32
12	44	43	39	34	29	45	43	39	35	30	47	45	40	37	32
15	45	44	40	35	30	46	44	41	36	31	48	46	42	38	33
17	46	44	40	35	30	47	45	41	36	31	49	47	42	38	33
20	47	45	41	36	31	48	46	42	38	33	50	48	43	39	34
22	47	45	41	36	31	48	46	42	38	33	50	48	43	39	34
25	48	46	42	38	34	49	47	43	40	36	51	49	44	41	37
28	49	47	43	39	35	50	48	44	41	37	52	50	45	42	38
30	49	47	43	39	35	50	48	44	41	37	52	50	45	42	38
32	50	48	44	40	36	51	49	45	42	38	53	51	46	43	39
35	51	49	45	41	37	52	50	46	43	39	54	52	47	44	40
40	53	51	46	42	38	54	52	47	44	40	56	54	49	45	41
45	55	53	48	45	42	56	54	49	46	43	58	56	51	47	44
50	57	54	50	47	44	58	55	51	48	45	60	57	53	49	46
55	59	56	52	49	46	60	57	53	50	47	62	59	54	51	48
60	61	58	54	51	48	62	59	54	51	48	64	61	56	53	50

Bore Diameter d/mm	SingleBearing Vibration speed Grade can not be over the following Values
	Diameter Series (0)					Diameter Series (2)					Diameter Series (3)
	Z	Z1	Z2	Z3	Z4	Z	Z1	Z2	Z3	Z4	Z	Z1	Z2	Z3	Z4
65	49	48	46	41	-	50	49	47	42	-	51	50	48	43	-
70	50	49	47	42	-	51	50	48	43	-	52	51	49	44	-
75	51	50	48	43	-	52	51	49	44	-	53	52	50	45	-
80	52	51	49	44	-	53	52	50	45	-	54	53	51	46	-
85	53	52	50	45	-	54	53	51	46	-	56	55	52	47	-
90	54	53	52	47	-	56	55	53	48	-	58	57	54	49	-
95	56	55	54	49	-	58	57	55	50	-	60	59	56	51	-
100	58	57	56	51	-	60	59	57	52	-	62	61	58	53	-
105	60	59	58	53	-	62	61	59	54	-	64	63	60	55	-
110	62	61	60	55	-	64	63	61	56	-	66	65	62	57	-
120	64	63	62	57	-	66	65	63	58	-	68	67	64	59	-

Rust resisting
Bearing should normally be put under the protected condition then it is to be stored and preserved. The rust resisting period is one year. If there is half a year over the preservation period. At the time before the expiring date of rust resisting you have to check it over then according to the stipulation to be rust resisted again so as to keep the bearing not rusty.

Packing
Bearings are generally packed in plastic cylinders or film bags, and then into the wrapping paper box, small bearings can also be set in a small box. If the users have extra packaging requirements, can be indicated on the contract.

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2025-01-10

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2025-01-05

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What should I do if the Flange Series Deep Groove Ball Bearing makes abnormal noise?

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Nominal bearing bore diameter d(mm)		Clearance
Nominal bearing bore diameter d(mm)		C2		C0		C3		C4		C5
Over	incl.	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.
10(be limited to)	10	0	7	2	13	8	23	14	29	20	37
10	18	0	9	3	18	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
40	50	1	11	6	23	18	36	30	51	45	73
50	65	1	15	8	28	23	43	38	61	55	90
65	80	1	15	10	30	25	51	46	71	65	105
80	100	1	18	12	36	30	58	53	84	75	120

Bore d(mm)		Clearance μm
Over	incl.	Min.	Max.
10(include)	18	4	11
18	30	5	12
30	50	9	17