Double Row Angular Contact Ball Bearings

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+86-635-8509787
+86-13280450757
sales@xrbearing.com
Yandian Industrial Zone, Liaocheng City, ShanDong Province. China
Skype: brandbearings

Brand:
EASIER/TKW

The design of double row angular contact ball bearings is basically the same as that of single row angular contact ball bearings, but only takes up a smaller axial space. The double row angular contact ball bearing can bear radial load and axial load acting in two directions, it can limit the axial displacement of the shaft or housing in both directions, and the contact angle is 30 degrees. A bearing configuration with higher rigidity can be provided, and it can withstand the overturning moment.

EASIER/TKW Can supply complete Double Row Angular Contact Ball Bearings

Double row ball bearings (2)

Double row angular contact ball bearings can withstand larger radial loads, mainly combined radial and axial loads and moment loads, limiting the axial displacement of the shaft on both sides. Mainly used in components that limit the bidirectional axial displacement of the shaft and the housing.

(1) The standard design of type A bearing whose outer diameter is less than or equal to 90mm. There is no notch for ball loading, so it can bear equal bidirectional axial load. The light-weight glass fiber reinforced nylon 66 cage is adopted, and the temperature rise of the bearing is small.

(2) The standard design of type B bearings with an outer diameter greater than 90mm. There is a ball-loading gap on one side, and it is equipped with a steel stamping cage or a brass solid cage.

(3) Type C is a reinforced structure, with a ball notch on one side, which can hold more steel balls, so the load-bearing capacity is higher.

(4) The double row angular contact ball bearings with dust cover on both sides and seal ring on both sides A and C design can be equipped with dust cover (non-contact) or sealing ring (contact type) on both sides. ). The inside of the sealed bearing is filled with anti-rust lithium grease, and the operating temperature is generally -30～+110℃. No relubrication is required during use, and it should not be heated or cleaned before installation.

Double row sealed angular contact ball bearings Compared with single-row angular contact ball bearings, the production of double-row angular contact ball bearings has the same processing technology, but it is more difficult to process. It is necessary to ensure that the balance of the bearing channel is poor during the processing. A slight deviation will affect the bearing The service life, speed, noise, etc. have a relatively large impact, so double row angular contact ball bearings are the same as double row deep groove ball bearings. Only by grasping the balance of the bearing channel can the quality of the bearing be ensured. In order to ensure the high quality of the products, our company specially updated the turning processing, grinding processing equipment and inspection and testing equipment, and improved the processing of operation...

The tiltability between the inner and outer rings of double row angular contact ball bearings is limited. The allowable tilt angle depends on the bearing's internal clearance, bearing size, internal design, and the force and moment acting on the bearing, and the maximum allowable tilt angle should be guaranteed No excessive additional stress is generated in the bearing.

If there is an inclination angle between the inner and outer rings of the bearing, it will affect the life of the bearing, and at the same time cause the bearing's running accuracy to decrease and the running noise to increase. Double row angular contact ball bearings generally use nylon cages or brass solid cages. Pay attention to the installation of double row angular contact ball bearings. Although the bearing can bear bidirectional axial load, if there is a gap in one side of the ball, care should be taken not to allow the main axial load to pass through the gap on the side of the groove. When using the bearing, pay attention to the main load on the side of the raceway without the ball-loading gap.

Bearing characteristics

--- Occupies less axial space

It can be used in applications where the axial space is limited when two single row angular contact ball bearings are arranged in a back-to-back arrangement.

--- Can bear radial load and axial load in two directions

--- Can withstand overturning moment

--- Rigid bearing arrangement

Industrial Application of Double Row Angular Contact Ball Bearings

• Fluid machinery:

Pumps, compressors, blowers, ventilators, turbines

• Automotive engineering:

Drives, clutches, gearboxes, wheel bearings, components

• Industrial drives and drive motors

• Printing machines

• Textile machines

• Material handling

Double Row Angular Contact Ball Bearings

Dimensions - 3320 A Abutment dimensions - 3320 A

Designation	Principal dimensions			Basic load ratings		Speed ratings
EASIER/ TKW				dynamic	static	Reference speed	Limiting speed
	d[mm]	D[mm]	B[mm]	C[kN]	C0[kN]	[r/min]	[r/min]
3200 A-2RS1TN9/MT33	10	30	14	7.61	4.3		17 000
3200 A-2ZTN9/MT33	10	30	14	7.61	4.3	26 000	24 000
3200 ATN9	10	30	14	7.61	4.3	26 000	24 000
3201 A-2RS1TN9/MT33	12	32	15.9	10.1	5.6		15 000
3201 A-2ZTN9/MT33	12	32	15.9	10.1	5.6	24 000	22 000
3201 ATN9	12	32	15.9	10.1	5.6	24 000	22 000
3202 A-2RS1TN9/MT33	15	35	15.9	11.2	6.8		14 000
3202 A-2ZTN9/MT33	15	35	15.9	11.2	6.8	22 000	18 000
3202 ATN9	15	35	15.9	11.2	6.8	22 000	18 000
3302 A-2RS1	15	42	19	15.1	9.3		12 000
3302 A-2RS1TN9/MT33	15	42	19	15.1	9.3		12 000
3302 A-2Z	15	42	19	15.1	9.3	18 000	16 000
3302 A-2ZTN9/MT33	15	42	19	15.1	9.3	18 000	16 000
3302 ATN9	15	42	19	15.1	9.3	18 000	16 000
3203 A-2RS1TN9/MT33	17	40	17.5	14.3	8.8		12 000
3203 A-2ZTN9/MT33	17	40	17.5	14.3	8.8	19 000	16 000
3203 ATN9	17	40	17.5	14.3	8.8	19 000	16 000
3303 A-2RS1	17	47	22.2	21.6	12.7		11 000
3303 A-2RS1TN9/MT33	17	47	22.2	21.6	12.7		11 000
3303 A-2Z	17	47	22.2	21.6	12.7	17 000	14 000
3303 A-2ZTN9/MT33	17	47	22.2	21.6	12.7	17 000	14 000
3303 ATN9	17	47	22.2	21.6	12.7	17 000	14 000
3204 A	20	47	20.6	20.4	12.9	16 000	14 000
3204 A-2RS1	20	47	20.6	20.4	12.9		10 000
3204 A-2RS1TN9/MT33	20	47	20.6	20.4	12.9		10 000
3204 A-2Z	20	47	20.6	20.4	12.9	16 000	14 000
3204 A-2ZTN9/MT33	20	47	20.6	20.4	12.9	16 000	14 000
3204 ATN9	20	47	20.6	20.4	12.9	16 000	14 000
3304 A	20	52	22.2	24.5	15.6	13 000	13 000
3304 A-2RS1	20	52	22.2	24.5	15.6		9 000

Designation	Principal dimensions			Basic load ratings		Speed ratings
EASIER/ TKW				dynamic	static	Reference speed	Limiting speed
	d[mm]	D[mm]	B[mm]	C[kN]	C0[kN]	[r/min]	[r/min]
3304 A-2RS1TN9/MT33	20	52	22.2	24.5	15.6		9 000
3304 A-2Z	20	52	22.2	24.5	15.6	13 000	13 000
3304 A-2ZTN9/MT33	20	52	22.2	24.5	15.6	13 000	13 000
3304 ATN9	20	52	22.2	24.5	15.6	13 000	13 000
3205 A	25	52	20.6	22	15.3	12 000	12 000
3205 A-2RS1	25	52	20.6	22	15.3		8 500
3205 A-2RS1TN9/MT33	25	52	20.6	22	15.3		8 500
3205 A-2Z	25	52	20.6	22	15.3	12 000	12 000
3205 A-2ZTN9/MT33	25	52	20.6	22	15.3	12 000	12 000
3205 ATN9	25	52	20.6	22	15.3	12 000	12 000
3305 A	25	62	25.4	32.5	22	11 000	11 000
3305 A-2RS1	25	62	25.4	32.5	22		7 500
3305 A-2RS1TN9/MT33	25	62	25.4	32.5	22		7 500
3305 A-2Z	25	62	25.4	32.5	22	11 000	11 000
3305 A-2ZTN9/MT33	25	62	25.4	32.5	22	11 000	11 000
3305 ATN9	25	62	25.4	32.5	22	11 000	11 000
3206 A	30	62	23.8	30.5	22	10 000	10 000
3206 A-2RS1	30	62	23.8	30.5	22		7 500
3206 A-2RS1TN9/MT33	30	62	23.8	30.5	22		7 500
3206 A-2Z	30	62	23.8	30.5	22	10 000	10 000
3206 A-2ZTN9/MT33	30	62	23.8	30.5	22	10 000	10 000
3206 ATN9	30	62	23.8	30.5	22	10 000	10 000
3306 A	30	72	30.2	42.5	30	10 000	9 000
3306 A-2RS1	30	72	30.2	42.5	30		6 300
3306 A-2RS1TN9/MT33	30	72	30.2	42.5	30		6 300
3306 A-2Z	30	72	30.2	42.5	30	10 000	9 000
3306 A-2ZTN9/MT33	30	72	30.2	42.5	30	10 000	9 000
3306 ATN9	30	72	30.2	42.5	30	10 000	9 000
3207 A	35	72	27	40.5	30	9 000	9 000
3207 A-2RS1	35	72	27	40.5	30		6 300

Designation	Principal dimensions			Basic load ratings		Speed ratings
EASIER/ TKW				dynamic	static	Reference speed	Limiting speed
	d[mm]	D[mm]	B[mm]	C[kN]	C0[kN]	[r/min]	[r/min]
3207 A-2RS1TN9/MT33	35	72	27	40.5	30		6 300
3207 A-2Z	35	72	27	40.5	30	9 000	9 000
3207 A-2ZTN9/MT33	35	72	27	40.5	30	9 000	9 000
3207 ATN9	35	72	27	40.5	30	9 000	9 000
3307 A	35	80	34.9	54	38	8 500	8 500
3307 A-2RS1	35	80	34.9	54	38		6 000
3307 A-2RS1TN9/MT33	35	80	34.9	54	38		6 000
3307 A-2Z	35	80	34.9	54	38	8 500	8 500
3307 A-2ZTN9/MT33	35	80	34.9	54	38	8 500	8 500
3307 ATN9	35	80	34.9	54	38	8 500	8 500
3307 DJ1	35	80	34.9	52.7	41.5	9 000	8 000
3208 A	40	80	30.2	48	36.5	9 000	8 000
3208 A-2RS1	40	80	30.2	48	36.5		5 600
3208 A-2RS1TN9/MT33	40	80	30.2	48	36.5		5 600
3208 A-2Z	40	80	30.2	48	36.5	9 000	8 000
3208 A-2ZTN9/MT33	40	80	30.2	48	36.5	9 000	8 000
3208 ATN9	40	80	30.2	48	36.5	9 000	8 000
3308 A	40	90	36.5	65.5	48	7 500	7 500
3308 A-2RS1	40	90	36.5	65.5	48		5 000
3308 A-2RS1TN9/MT33	40	90	36.5	65.5	48		5 000
3308 A-2Z	40	90	36.5	65.5	48	7 500	7 500
3308 A-2ZTN9/MT33	40	90	36.5	65.5	48	7 500	7 500
3308 ATN9	40	90	36.5	65.5	48	7 500	7 500
3308 DMA	40	90	36.5	68.9	57	8 000	7 000
3308 DNRCBM	40	90	36.5	49.4	41.5	8 000	7 000
3308 DTN9	40	90	36.5	68.9	57	8 000	7 000
3209 A	45	85	30.2	52	41.5	7 500	7 500
3209 A-2RS1	45	85	30.2	52	41.5		5 300
3209 A-2RS1TN9/MT33	45	85	30.2	52	41.5		5 300
3209 A-2Z	45	85	30.2	52	41.5	7 500	7 500

Designation	Principal dimensions			Basic load ratings		Speed ratings
EASIER/ TKW				dynamic	static	Reference speed	Limiting speed
	d[mm]	D[mm]	B[mm]	C[kN]	C0[kN]	[r/min]	[r/min]
3209 A-2ZTN9/MT33	45	85	30.2	52	41.5	7 500	7 500
3209 ATN9	45	85	30.2	52	41.5	7 500	7 500
3309 A	45	100	39.7	75	53	7 500	6 700
3309 A-2RS1	45	100	39.7	75	53		4 800
3309 A-2Z	45	100	39.7	75	53	7 500	6 700
3309 ATN9	45	100	39.7	75	53	7 500	6 700
3309 DMA	45	100	39.7	79.3	69.5	7 500	6 300
3309 DNRCBM	45	100	39.7	61.8	52	7 500	6 300
3210 A	50	90	30.2	51	42.5	8 000	7 000
3210 A-2RS1	50	90	30.2	51	42.5		4 800
3210 A-2RS1TN9/MT33	50	90	30.2	51	42.5		4 800
3210 A-2Z	50	90	30.2	51	42.5	8 000	7 000
3210 A-2ZTN9/MT33	50	90	30.2	51	42.5	8 000	7 000
3210 ATN9	50	90	30.2	51	42.5	8 000	7 000
3310 A	50	110	44.4	95	69.5	6 000	6 000
3310 A-2RS1	50	110	44.4	95	69.5		4 300
3310 A-2Z	50	110	44.4	95	69.5	6 000	6 000
3310 ATN9	50	110	44.4	95	69.5	6 000	6 000
3310 DMA	50	110	44.4	93.6	85	6 700	5 600
3310 DNRCBM	50	110	44.4	81.9	69.5	6 700	5 600
3211 A	55	100	33.3	61	52	6 300	6 300
3211 A-2RS1	55	100	33.3	61	52		4 500
3211 A-2Z	55	100	33.3	61	52	6 300	6 300
3211 ATN9	55	100	33.3	61	52	6 300	6 300
3311 A	55	120	49.2	112	81.5	6 000	5 300
3311 A-2RS1	55	120	49.2	112	81.5		3 800
3311 A-2Z	55	120	49.2	112	81.5	6 000	5 300
3311 ATN9	55	120	49.2	112	81.5	6 000	5 300
3311 DMA	55	120	49.2	111	100	6 000	5 000
3311 DNRCBM	55	120	49.2	95.6	83	6 000	5 300

Designation	Principal dimensions			Basic load ratings		Speed ratings
EASIER/ TKW				dynamic	static	Reference speed	Limiting speed
	d[mm]	D[mm]	B[mm]	C[kN]	C0[kN]	[r/min]	[r/min]
3212 A	60	110	36.5	75	64	5 600	5 600
3212 A-2RS1	60	110	36.5	75	64		4 000
3212 A-2RS1TN9/MT33	60	110	36.5	75	64		4 000
3212 A-2Z	60	110	36.5	75	64	5 600	5 600
3212 ATN9	60	110	36.5	75	64	5 600	5 600
3312 A	60	130	54	127	95	5 600	5 000
3312 A-2Z	60	130	54	127	95	5 600	5 000
3213 A	65	120	38.1	80.6	73.5	5 600	4 800
3213 A-2RS1	65	120	38.1	80.6	73.5		3 600
3213 A-2Z	65	120	38.1	80.6	73.5	5 600	4 800
3313 A	65	140	58.7	146	110	5 300	4 500
3313 A-2Z	65	140	58.7	146	110	5 300	4 500
3313 DNRCBM	65	140	58.7	138	122	5 300	4 500
3214 A	70	125	39.7	88.4	80	5 600	4 500
3214 A-2Z	70	125	39.7	88.4	80	5 600	4 500
3314 A	70	150	63.5	163	125	5 000	4 300
3314 A-2Z	70	150	63.5	163	125	5 000	4 300
3215 A	75	130	41.3	95.6	88	5 300	4 500
3215 A-2Z	75	130	41.3	95.6	88	5 300	4 500
3315 A	75	160	68.3	176	140	4 500	4 000
3315 A-2Z	75	160	68.3	176	140	4 500	4 000
3216 A	80	140	44.4	106	95	5 000	4 300
3316 A	80	170	68.3	193	156	4 300	3 800
3217 A	85	150	49.2	124	110	4 500	3 800
3317 A	85	180	73	208	176	4 000	3 600
3218 A	90	160	52.4	130	120	4 300	3 600
3318 A	90	190	73	208	180	3 800	3 400
3219 A	95	170	55.6	159	146	4 000	3 400
3319 A	95	200	77.8	240	216	3 600	3 200
3220 A	100	180	60.3	178	166	3 800	3 200

Designation	Principal dimensions			Basic load ratings		Speed ratings
EASIER/ TKW				dynamic	static	Reference speed	Limiting speed
	d[mm]	D[mm]	B[mm]	C[kN]	C0[kN]	[r/min]	[r/min]
3320 A	100	215	82.6	255	255	3 400	2 800
3222 A	110	200	69.8	212	212	3 400	2 800
3322 A	110	240	92.1	291	305	3 000	2 600
305256 D	120	190	66	182	232	3 400	3 600
305283 D	150	230	70	203	285	2 800	3 000
305283 DA	150	230	70	203	285	2 800	3 000
305286 D	150	225	73	182	265	1 700	2 000
305608	160	215	56	135	220	2 800	3 000
305608 B	160	215	56	135	220	2 800	3 000
305262 D	180	259.5	66	225	310	2 400	2 600
305288 DA	180	250	70	190	285	2 400	2 600
305338 D	190	269.5	66	270	415	2 200	2 400
305263 D	200	289.5	76	302	475	1 800	2 200
305263 DA	200	289.5	76	302	475	1 800	2 200
305428 D	200	279.5	76	242	380	1 900	2 400
305272 D	220	309.5	76	312	520	2 000	2 000
305272 DA	220	309.5	76	312	520	2 000	2 000
305272 DB	220	309.5	76	312	520	2 000	2 000
305264 D	230	329.5	80	351	600	1 900	2 000
305270 D	260	369.5	92	397	710	1 700	1 700
305269 D	280	389.5	92	403	750	1 600	1 600