Backing Bearing

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Specifications

Backing Bearing


Dimensions					Basic load ratings		Mass	Structure	Designations
mm					kN		kg
d	D	B	C	Section height H	Cr	Cor
70	160.02	90	90	44.971	375	650	11.5	1	14EF3290
90	220.02	94	94	65	620	870	21	3	18EF4494
90	220.02	94	94	65	740	1100	21	3	18EF4496
90	220.02	96	94	65	550	780	22.2	2	18EF4494
90	220.02	96	94	65	460	630	20	2	18EF44120
90	220.02	120	120	65.01	670	1120	28.5	—	18EF44120Z
90	220.02	120	120	65	790	1530	28.6	—	18EF44120Z1
100	225	120	119	62.5	770	1310	26	2	20EF45120X
100	225	120	119	62.5	650	1050	26	2	20EF45120X1
100	225	120	119	62.5	710	1170	26	2	20EF45120X2
100	225	120	120	62.5	735	1380	27.7	1	20EF45120X3
110	260	98	98	75	700	1010	31.9	2	22EF5298
130	300.02	130	129	85.01	1040	1560	54.9	2	26EF60130
130	300.02	132	129	85.01	1040	1560	56.5	2	26EF60132
130	300.02	150	149	85	1200	1860	60	2	26EF60150
130	300.02	161.5	160.5	85.	1200	1880	54.9	2	26EF60161
130	300.02	172.65	171.6	85.	1440	2370	71.3	2	26EF60172
130	300.02	172.65	171.6	85.01	1440	2370	73.5	2	26EF60172X
130	300.02	172.64	172.6	84.955	1500	2700	74.8	1	26EF60172X2
130	300	159.5	160	85	1395	2500	66.1	1	26EF60159
180	406.4	171.04	170	113.2	1710	3000	125	2	36EF81171
180	406.4	224	220	113.2	1910	3450	174	2	36EF81224
180	406.42	176	170	113.2	1710	3000	136	2	36EF81176
180	406.42	217	217	113.143	2500	4900	136	2	36EF811217
180	406.42	224	224	113.2	2600	1790	169	1	36EF81224X
205	520	168	168	157.5	2570	3960	218	3	102EF104168

Product introduction

Backing Bearing

Backing bearing is specially designed for multi-roller cool rolling mill bearing（also called Sendzimir mill）. They are mainly applied on high-accuracy rolling. It can also applied for other use, such as roller straighteners or bending machines. Backing bearing is the bearing with very thick wall. It can be installed on static support axis to form support roll or leveler roll. The force from working roll is transmitted to roller or housing through support roller or support housing. Backing bearing can bear comparatively high radial load according to different design form.

At the same time it can also bear radial load transmitted to housing through adjacent mechanism.

Processing Accuracy : Revolving accuracy should not lower than P4, size accuracy should not be lower than P5.

It is divided into 3-6 tolerance groups the difference is respectively 3—5.µm.

It can be applied on comparatively high rolling speed which could be up to 1000m/min.

There are three commonly seen structure type.

Structure in picture 1

The outer ring is without ring rib. The first and second ring is led by double-paw cage, the third roller is led by single-row solid cage. The roller is led by moving rib on the inner ring in the axial direction. This type of bearing is applied for emulsion.

Structure in picture 2

It is double-row. There are three ribs. The roller is led by double-paw brass cage. This type of bearing is applied for any lubrication method. Bearing with seal or without seal can be selected according to requirement.

Structure in picture 3

Double-row full complement with medium rib on inner ring and outer ring. This type of bearing has no seal and is applied for emulsion.

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