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30311 Single Row Tapered Roller Bearing

High Radial and Axial Bearing Capacity

Low Friction

Low Noise

Flexible Rotation

Long Service

Gcr15 Material Parts

100% Size Full Inspection

Stable operation

Detachable and interchangeable components

P0,P6,P5

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Product Details

Product Introduction

The inner diameter of 30311 Single Row Tapered Roller Bearing is 55mm, the outer diameter is 120mm, and the thickness (width) is 29mm. This type of bearing is usually suitable for application scenarios that require bearing radial and bi-directional axial loads. In addition, the speed of 30311 Single Row Tapered Roller Bearing can reach 3400r/min under grease lubrication conditions, and 4300r/min under oil lubrication conditions.

30311 Single Row Tapered Roller Bearing made of high-quality bearing steel with high purity and good hardness. After full inspection and testing, the quality is guaranteed.

30311 Single Row Tapered Roller Bearing

Bearing Number	Principal Dimensions(mm)							Basic Load Ratings(KN)		Limiting Speeds(r/min)		Weight/kg	Mounting Dimensions(mm)
Bearing Number	d	D	T	B	C	r1min	r2min	Cr	Cor	Grease	Oil	Weight/kg	da min	db max	Da min	Db min
32011	55	90	23	23	17.5	1.5	1.5	80	116	4000	5300	0.55	63	62	81	86
33111	55	95	30	30	23	1.5	1.5	110	156	3800	5000	0.86	62	62	83	91
30211	55	100	22.75	21	18	2	1.5	90	116	3800	5000	0.715	64	64	87	94
32211	55	100	26.75	25	21	2	1.5	108	144	3800	5000	0.86	63	64	87	95
33211	55	100	35	35	27	2	1.5	138	190	3400	4500	1.2	62	64	85	96
31311	55	120	31.5	29	21	2.5	2	130	158	2800	3800	1.56	68	65	94	113
30311	55	120	31.5	29	25	2.5	2	153	190	3200	4300	1.61	71	65	104	111
32311	55	120	45.5	43	35	2.5	2	203	274	3000	4000	2.37	68	65	99	111

30311 Single Row Tapered Roller Bearing

Application Area

These characteristics make 30311 Single Row Tapered Roller Bearing suitable for various industrial applications, including but not limited to steel metallurgy, glass industry, blast furnaces, spray painting equipment, mining machinery, conveyors, transmission devices, boiler fans, vacuum equipment, kiln cars, machine tools, engineering machinery, etc.

30311 Single Row Tapered Roller Bearing

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30311 Single Row Tapered Roller Bearing

Bearing Number	Principal Dimensions(mm)							Basic Load Ratings(KN)		Limiting Speeds(r/min)		Weight/kg	Mounting Dimensions(mm)
Bearing Number	d	D	T	B	C	r1min	r2min	Cr	Cor	Grease	Oil	Weight/kg	da min	db max	Da min	Db min
32011	55	90	23	23	17.5	1.5	1.5	80	116	4000	5300	0.55	63	62	81	86
33111	55	95	30	30	23	1.5	1.5	110	156	3800	5000	0.86	62	62	83	91
30211	55	100	22.75	21	18	2	1.5	90	116	3800	5000	0.715	64	64	87	94
32211	55	100	26.75	25	21	2	1.5	108	144	3800	5000	0.86	63	64	87	95
33211	55	100	35	35	27	2	1.5	138	190	3400	4500	1.2	62	64	85	96
31311	55	120	31.5	29	21	2.5	2	130	158	2800	3800	1.56	68	65	94	113
30311	55	120	31.5	29	25	2.5	2	153	190	3200	4300	1.61	71	65	104	111
32311	55	120	45.5	43	35	2.5	2	203	274	3000	4000	2.37	68	65	99	111