China Hrb Taper Roller Bearing 31311

• Customization: Available
• Inner Diameter: 55 mm
• Outer Diameter: 120 mm
• Model NO.: 31311
• Mass Kg: 1.55
• Delivery Time: in Stock
• Hardness: 59 ~ 62 HRC
• OEM Service: Provide
• Free Samples: Available
• Rolling Body: Roller Bearings
• The Number of Rows: Single
• Outer Dimension: Medium and Large(120-190mm)
• Material: Bearing Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Radial Bearing
• Separated: Separated
• Transport Package: Hrb Single Box
• Specification: P0, P6, P5
• Trademark: HRB
• Origin: China
• HS Code: 84822000
• Production Capacity: 50000 PCS/Month

Product Description

China HRB Taper Roller Bearing 31311

Taper Roller Bearing:
Tapered roller bearings have tapered inner and outer ring raceways between which tapered rollers are arranged. The projection lines of all the tapered surfaces meet at a common point on the bearing axis. Their design makes tapered roller bearings particularly suitable for the accommodation of combined (radial and axial) loads. The axial load carrying capacity of the bearings is largely determined by the contact angle; the large contact angle. the higher the axial load carrying capacity. Tapered roller bearings are generally separable, i.e. the cone, consisting of the inner ring with roller and cage assembly, can be mounted separately from the (out ring).

We can provide maiy kind of tapered roller bearings including metric and imperial standard in different occasions:

Single row: Consist of a innerring with single race, a outer ring with single race, a steel cage and a set of taper roller.

Single row paired: Consist of two sets of single row tapered roller bearings and one or two spacer. It has three kinds of configurations.

Doubel Rows: Consist of outer ring with two races and two subassemblies which are consist of rollers and cages. The main purpose is applicable of gearboxes, hoisting equipment, rolling mills and machines used in the mining industry, e.g. tunnelling machines. 

Four-row: It has two configurations which are called as TQO and TQI. TQO consist of two rows inner rings, subassemblies which consist of rollers and cages and one inner spacer, one outer spacer, one outer ring with two single races, two outer rings with single race.
  TQI consist of two ring with double races, one outer spacer, two rows inner rings subassemblies which consist of rollers and cages and two single inner rings which rollers and cages. 

Gradient angle allowed:
Tapered Roller Bearing does not allow axis relative shell holes are inclined, the laregest value of its gradient angle can not be exceed.

The clearance:
The clearance of single row tapered roller bearings can only be obtained after mounting and is determined by adjustment of the bearing per consumer's requirement. The axial clearance of paired single row is in sheet one. The radial clearance of two rows tapered roller bearings and four rows tapered roller bearing are in sheet two.

Some Part Number of Taper Roller Bearings:

Modle	Old	ID(mm)	OD(mm)	Thickness(mm)
30203	7203E	17	40	12
30204	7204E	20	47	14
30205	7205E	25	52	15
30206	7206E	30	62	16
30207	7207E	35	72	17
30208	7208E	40	80	18
30209	7209E	45	85	19
30210	7210E	50	90	20
30211	7211E	55	100	21
30212	7212E	60	110	22
30213	7213E	65	120	23
30214	7214E	70	125	24
30215	7215E	75	130	25
30216	7216E	80	140	26
30217	7217E	85	150	28
30218	7218E	90	160	30
30219	7219E	95	170	32
30220	7220E	100	180	34
30221	7221E	105	190	36
30222	7222E	110	200	38
30224	7224E	120	215	40
30226	7226E	130	230	40
30228	7228E	140	250	42
30230	7230E	150	270	45
30232	7232E	160	290	48
30234	7234E	170	310	52
30236	7236E	180	320	52
30238	7238E	190	340	55
30240	7240E	200	360	58
30302	7302E	15	42	13
30303	7303E	17	47	14
30304	7304E	20	52	15
30305	7305E	25	62	17
30306	7306E	30	72	19
30307	7307E	35	80	21
30308	7308E	40	90	23
30309	7309E	45	100	25
30310	7310E	50	110	27
30311	7311E	55	120	29
30312	7312E	60	130	31
30313	7313E	65	140	33
30314	7314E	70	150	35
30315	7315E	75	160	37
30316	7316E	80	170	39
30317	7317E	85	180	41
30318	7318E	90	190	43
30319	7319E	95	200	45
30320	7320E	100	215	47
30321	7321E	105	225	49
30322	7322E	110	240	50

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We are the bearing manufacture local in Wuxi City, we are the leading bearing factory in China, and we have 15 years export experience. And our produce equipment are import from Germany, so that our bearings quality level has reached in Europe quality. Our own brand is : " DEMEK", also we are usually to help our clients to do the OEM service and customized non-standard bearings. Welcome to send us the inquiry.

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