Fast Delivery Thrust Roller Bearing (81224/81226/81228/81230)

• Customization: Available
• Rolling Body: Roller Bearings
• The Number of Rows: Single
• Model NO.: 81224/81226/81228/81230
• Outer Dimension: Medium and Large(120-190mm)
• Material: Bearing Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Thrust Bearing
• Separated: Separated
• H.S. Code: 8482300000
• Transport Package: Exporting Packing in Carbon Box and Wooden Box
• Specification: SGS ISO
• Trademark: GY brand OEM
• Origin: Linqing, Shandong, China
• HS Code: 8482800000
• Production Capacity: 100000PCS/Year

Product Description

Thrust Roller Bearing (81224/81226/81228/81230)

Thrust roller bearing is used to carry axial load of axial, radial joint load, the radial load shall not exceed 55% of the axial load.Compared with other thrust roller bearings, the bearing friction factor is low, high speed, and has a self-aligning performance.
Thrust cylindrical roller bearing is mainly used in heavy duty machine tools, high-power Marine gearbox, oil drilling machine, vertical machine and other machinery.

1. Selection and control of tolerance for thrust roller bearing chamber: The thrust roller bearing should rotate flexibly without any obstruction after being pressed into the thrust roller bearing. If there is obvious inflexibility in rotation, it indicates that the size of the shaft is too large and the tolerance needs to be lowered. If there is a noticeable "rustling" feeling when the thrust roller bearing is pressed into the shaft and rotated by hand, it may be due to excessive tolerance or poor roundness of the shaft. So when controlling the tolerance of the shaft and thrust roller bearing chamber, it is also necessary to control the roundness. Many domestic manufacturers only control the tolerance and do not control the roundness.
2. Assembly method of thrust roller bearings: As thrust roller bearings are high-precision products, improper assembly can easily cause damage to the grooves of the thrust roller bearings, resulting in damage to the thrust roller bearings. The thrust roller bearing should have a dedicated mold during assembly and cannot be knocked randomly. When pressing the shaft, only the small ring can be subjected to force, and when pressing the large ring, only the large ring can be subjected to force. During assembly, it is required to use air pressure or hydraulic pressure. The upper and lower molds should be in a horizontal state during press fitting. If there is any inclination, it will cause damage to the groove of the thrust roller bearing due to force, resulting in a rattling of the thrust roller bearing.
3. Prevention of foreign objects during assembly: When installing the thrust roller bearing on the rotor for dynamic balancing, it is easy for iron filings generated during dynamic balancing to enter the interior of the thrust roller bearing. Therefore, it is best to perform dynamic balancing before installing the thrust roller bearing. Some manufacturers apply some oil or grease to the thrust roller bearing chamber for lubrication during assembly, but it is often difficult for operators to control the amount properly. If there is a large accumulation of oil or grease in the thrust roller bearing chamber, it is easy for it to enter the interior of the thrust roller bearing along the shaft when it rotates. It is best not to apply oil or grease to the thrust roller bearing chamber. If it is necessary to do so, it is necessary to control the accumulation inside the thrust roller bearing chamber.
4. Prevention of paint rust: The characteristic of paint rust is that it is more common in sealed motors. The motor makes a good sound during assembly, but after being stored in the warehouse for some time, the abnormal noise of the motor becomes very loud. Removing the thrust roller bearing causes serious rusting. Many manufacturers used to think it was a problem with the thrust roller bearings, but through our continuous promotion, the motor factory has realized that the main issue is with the insulation paint. The main reason for this problem is that the acidic substances evaporated from the insulation paint form corrosive substances at a certain temperature and humidity, which corrode the groove of the thrust roller bearing and cause damage to the thrust roller bearing. This problem can only be solved by selecting good insulation paint and assembling it after drying and ventilating for a period of time.

	d	D	B	WEIGHT/KG
81202	15	32	12
81203	17	35	12
81204	20	40	14
81205	25	47	15
81206	30	52	16	0.12
81207	35	62	18	0.20
81208	40	68	19	0.25
81209	45	73	20
81210	50	78	22	0.43
81211	55	90	25	0.71
81212	60	95	26	0.79
81213	65	100	27	0.87
81214	70	105	27	0.77
81215	75	110	27	0.98
81216	80	115	28	1.03
81217	85	125	31	1.44
81218	90	135	35	1.75
81220	100	150	38	2.61
81222	110	160	38	2.80
81224	120	170	39	2.70
81226	130	190	45	4.20
81228	140	200	46	4.55
81230	150	215	50
81234	170	240	55	7.70
81236	180	250	56	9.37
81238	190	270	62	10.50
81240	200	280	62	12.60
81244	220	300	63	13.00
81248	240	340	78	22.00
81252	260	360	79	24.00
81256	280	380	80	26.00
81260	300	420	95	41.60
81264	320	440	95	42.50
81268	340	460	96	47.00
81272	360	500	110	65.50
81276	380	520	112	70.00
81280	400	540	112	73.00
81284	420	580	130	95.50
81288	440	600	130	110.00
81292	460	620	130	118.00
81296	480	650	135	128.00