Angular Contact Bearing, Thin Wall, Single-Row Universal Combination Type

 

Material	Bearing Precision	Contact Angle	Vibration Class
Equivalent to SUJ2	P4 Grade	25°	V1

 

Part Number			Dimensions (mm)			Rated Load (kN)		Rotational Speed Limit (rpm)		r (min)	r1 (min)	Point of Action a	Mounting Dimensions			Weight (kg)
Type	Bearing Part Number	Single Row	Inner Diameter d	Outer Diameter D	Width B	Cr	Cor	Grease Lubrication	Oil Lubricated				Ds (min.)	dh (max.)	R (max.)
E-B	7900	SU	10	22	6	2.4	1.0	63000	95000	0.3	0.2	6.8	12	20	0.3	0.01
	7901		12	24		2.5	1.1	56000	85000			7.3	14	22
	7902		15	28	7	3.7	1.8	50000	75000			8.5	17	26		0.02
	7903		17	30		3.9	2	45000	67000			9	19	28
	7904		20	37	9	5.7	3.0	38000	56000			11.2	22	35		0.04
	7905		25	42		6.3	3.8	32000	48000			12.4	27	40
	7906		30	47		6.7	4.3	26000	40000			13.6	32	45		0.05
	7907		35	55	10	9.2	6.2	22000	36000	0.6	0.3	15.6	38.2	51.8	0.6	0.07
	7908		40	62	12	11.7	8.0	18000	30000			18	43.2	58.8		0.11
	7909		45	68		12.4	9	17000	28000			19.3	66.6	64.8		0.126
	7910		50	72		12.7	9.8	16000	26000			20.3	53.2	68.8		0.129
	7911		55	80	13	18.2	13.7	15000	24000	1.1		22.4	59.6	75.4	1.1	0.174
	7912		60	85		18.6	14.6	14000	22000			23.5	64.6	80.4		0.187
	7913		65	90		19.5	16	13000	20000			24.7	69.6	85.4		0.2
	7914		70	100	16	32.5	32.5	11000	18000			27.9	74.6	95.4		0.34
	7915		75	105		33.8	35.5	10000	17000			29.1	79.6	100		0.36
	7916		80	110		34.5	36.5	9500	16000			30.2	84.6	105		0.38
	7917		85	120	18	43.6	45.5	9000	15000		0.6	33	91	114		0.53
	7918		90	125		44.2	48.0	8500	14000			34.2	96	119		0.56
	7919		95	130		46.2	52		14000			35.3	101	124		0.582
	7920		100	140	20	57.2	63.0	8000	13000			38.1	106	134		0.79
	7921		105	145		57.2	65.5	7500	12000			39.3	111	139		0.81
	7922		110	150		58.5	68.0	7500				40.4	116	144		0.84
	7924		120	165	22	72.8	86.5	7000	11000			44.4	126	159		1.15
	7926		130	180	24	87.1	102.0	6700	10000	1.5		48.3	137	173	1.5	1.52

· The product's precision reaches P4 grade; the precision grade directly affects its operating condition and service life.
· Any two universal matching P4 grade angular contact ball bearings can be combined in different sets, making assembly convenient.

When the precision of the shaft and bearing housing is poor, the bearing will be affected, and its due performance will not be exerted. For example, the poor precision of the mounting part with the bearing will cause relative inclination of the inner and outer rings. At this time, besides the bearing load, the edge load will be increased additionally, which will shorten the fatigue life of the bearing, and even more seriously, it will lead to damage such as cage breakage and sticking.

Please use the following special mounting tool for installation and removal

Bearing heater
	Proper installation of the bearing heater can guarantee a long life of the bearing. Rolling bearings are reliable mechanical components with long service life if they are installed and maintained correctly. After the induction heater is used for heating, the bearing expands outward in the cylindrical direction, which can avoid the damage during installation. Induction heater is one of the most scientific heating methods, which does not need preheating, and can be heated to 110℃ in a few seconds or minutes depending on the weight of bearings, without damaging the prior lubrication
Bearing puller
	When the installation state of the bearing is in the following situations, the special puller can be used for disassembly. (a) Shaft shape: cylindrical shaft, Inner diameter shape of bearing inner ring: cylindrical hole. (b) Shaft shape: cylindrical shaft, inner diameter shape of bearing inner ring with tight bushing: tapered hole. (c) Shaft shape: tapered shaft, Inner diameter shape of bearing inner ring: tapered hole. In either state, the lock nut of the shaft (or the lock nut of the tight bushing) must be released during disassembly, and the lock nut must be placed in a loose state.