BX Series Crossed Roller Bearings

The rollers of BX series crossed roller bearings are arranged crosswise, only one set of lateral rolling bearings can bear all the loads, and its rigidity is 3-4 times higher than that of conventional models. Its outer ring can be fastened with the cross-roller shaft ring after being installed with rollers and spacers to prevent mutual separation, and the installation is more convenient. Due to the use of the spacer, the friction force between the rollers is eliminated, the rolling of the rollers is avoided, and a stable rotational moment is realized.

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Product Parameter Product Description

Dimensional drawing of BX series crossed roller bearings

BX series cross roller bearing model

Model Number	Main Dimensions(mm)						Shoulder Height		Basic Load Rating(Axial)		Basic Load Rating(Radial)		Weight
	Main Dimensions(mm)						Shoulder Height		Basic Load Rating(Axial)		Basic Load Rating(Radial)		Weight
	Inner Ring	Outer Ring	Circle Diameter	Width	Greasing	Chamfer	de	Di	Ca	Coa	cr	Cor	Kg
	Inner Ring	Outer Ring	Circle Diameter	Width	Greasing	Chamfer			kN	kN	kN	kN
	(mm)	(mm)	dp	B	hole	r(min)
BX011814	70	90	80	10	1.2	0.6	79.5	80.5	15.4	51	11	20	0.3
BX011818	90	115	102	13	1.2	1	101.5	102.5	26	91	18	37	0.4
BX011820	100	125	112	13	1.2	1	111.5	112.5	28	102	19	41	0.5
BX011824	120	150	135	16	1.5	1	134.4	135.6	41	146	27	59	0.8
BX011828	140	175	157	18	1.5	1.1	156.3	157.7	64	240	45	96	1.1
BX011832	160	200	180	20	1.5	1.1	179.2	180.8	69	275	49	111	1.7
BX011836	180	225	202	22	2	1.1	201.2	202.8	96	381	69	153	2.3
BX011840	200	250	225	24	2	1.5	224.2	225.8	102	425	72	170	3.1
BX011848	240	300	270	28	2	2	269.2	270.8	148	640	105	255	5.3
BX011860	300	380	340	38	2.5	2.1	339.2	340.8	243	1070	173	425	12
BX011868	340	420	380	38	2.5	2.1	379.2	380.8	260	1220	185	485	13.5
BX011880	400	500	450	46	2.5	2.5	449	451	385	1800	275	720	24
BX0118/500	500	620	560	56	2.5	3	558.8	561.2	560	2750	395	1100	44

Cross-arranged rollers: The rollers of BX series bearings adopt cross-arranged arrangement, and only one set of lateral rolling bearings can bear all the loads, which increases the rigidity by 3-4 times compared with conventional models. This design enables the bearing to withstand loads in multiple directions such as radial loads, axial loads, and moment loads.

Outer ring fixed design: The outer ring of BX series bearings can be fastened with the cross-roller collar to prevent mutual separation. This design makes installation easier and increases the stability of the bearing.

Spacer: BX series bearings adopt a spacer, which eliminates the friction between the rollers and avoids the rolling of the rollers. This enables stable rotational torque and improves bearing performance and life.

BX series cross roller bearing installation steps

Installation diagram of SX series cross roller bearing

1. Thoroughly clean the support seat or other installation parts, and determine whether there are burrs or burrs.

2. When we install the cross roller bearing, the insertion tends to be tilted. In order to prevent this phenomenon, please keep it horizontal while hitting it evenly with a plastic hammer, and insert the bearing into the support seat or on the shaft bit by bit until Confirm by sound until it is completely in close contact with the reference surface.

3. Place the fixed flange on the cross roller bearing collar, shake the fixed flange several times to make it coincide with the position of the bolt hole.

4. Insert the fixing bolt into the hole, and when turning the bolt by hand, confirm that the bolt is not difficult to screw in due to the deviation of the bolt hole.

5. The locking of the fixing bolts is divided into 3~4 stages from incomplete locking to full locking, and the tightening is repeated in the order of the diagonal. When tightening the divided inner ring or outer ring, the deviation between the inner and outer rings and the main body can be corrected by slightly turning the integral outer ring or inner ring.

Lubrication method of BX series cross roller bearings

BX series crossed roller bearings can be lubricated by drip oil lubrication, circulating oil lubrication, oil bath lubrication, radiation lubrication, spray lubrication and other methods.

1. Drip oil smooth

This method is suitable for thrust cylindrical roller bearings. This bearing cannot use too much lubricating oil, and needs to supply lubricating oil in a certain amount, while dripping oil lubrication can continuously lubricate thrust cylindrical roller bearings in a small amount.

2. Circulating oil lubrication

Bearing components with high speed can use this lubrication method. The circulating oil is lubricated and the filtered oil is pumped into the bearing components through the oil pump. After passing through the bearing, the lubricating oil will be filtered and cooled. This method can quickly take away a lot of heat. Make the bearing with high speed run more smoothly.

3. Oil bath smoothing

This is a widely used and popular bearing lubrication method, which is mostly used for bearings with low speed. Oil bath lubrication is to put a part of the bearing in the oil tank, and the rotating bearing parts will take up the lubricating oil, and then flow back to the oil surface of the oil tank.

4. Radial Smooth

Radiation lubrication is to use an oil pump to spray low-pressure oil into the roller bearing through the nozzle, and the lubricating oil injected into the bearing enters the oil groove from the other end of the bearing. When the bearing runs at a high speed, the rotation speed of the bearing rolling body and the cage also maintains the corresponding speed, so there is airflow around. At this time, the bearing uses ordinary lubrication methods, and it is difficult to send lubricating oil to the bearing. At this time, It is necessary to use the method of low-pressure injection to spray the lubricating oil into the bearing, and the position of the nozzle is between the inner ring and the cage.

5. Spray smooth

In this way, after the air is shrunk, it is mixed with lubricating oil through a sprayer to form an oil mist, and then sprayed into the BSU series crossed cylindrical roller bearings. These air flows can reduce the operating temperature of the bearings and reduce the chance of debris entering. Lubrication of high-speed and low-temperature bearing components.