NSK QT Series

Gear unit bearings are used to facilitate the smooth transmission of rotating force to the axles under vibration during train operation. QT30 30312DQWAP6 30313DQWAP6U1 QT31 QT9 QT9A QT9B-1 QT9B-2 QT9C 30314QWAP6 30314DAQWAP6A QT7 QT7A QT20X 30315QWAP6 30315DXQWAP6 QT4 QT4A 30316QWAP6 30316DXQU18 QT18 30317QWAP6A 30317DQWAP6A 30318 30319 30320QWAP6A 30322 30328QWAP6 30330 32030 32032 32034 QT23 QT1(3) QT6 32038 QT26-4 QT29(1) QT26-2 QT26 QT13 QT25 QT27 32040 QT34 QT28(3) QT33 QT36 QT5 QT24 QT19-1 QT35 QT32 32944QWASA 32052Q

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Railway Bearings

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Product Description

Gear unit bearings are used to facilitate the smooth transmission of rotating force to the axles under vibration during train operation. The bearings are usually operated under harsh conditions. The reaction forces from the mating gears as well as the inertia force of the pinion shaft and the gearbox are applied to the gear bearings.

Bearing Number	Dimensions(mm）
Bearing Number	d	D	T	B	C
QT30	60	130	33.5	31	22
30312DQWAP6	60	130	33.5	31	22
30313DQWAP6U1	65	140	36	33	23
QT31	70	150	40	37	27
QT9	70	150	38	35	25
QT9A	70	150	38	35	25
QT9B-1	70	150	38	35	25
QT9B-2	70	150	38	35	25
QT9C	70	150	38	35	25
30314QWAP6	70	150	38	35	30
30314DAQWAP6A	70	150	38	35	25
QT7	75	160	40	37	27
QT7A	75	160	40	37	27
QT20X	75	160	40	37	31
30315QWAP6	75	160	40	37	31
30315DXQWAP6	75	160	40	37	26
QT4	80	170	42.5	39	28
QT4A	80	170	42.5	39	28
30316QWAP6	80	170	42.5	39	33
30316DXQU18	80	170	42.5	39	27
QT18	85	180	45.5	42	29
30317QWAP6A	85	180	44.5	41	34
30317DQWAP6A	85	180	44.5	41	29
30318	90	190	46.5	43	36
30319	95	200	49.5	45	38
30320QWAP6A	100	215	51.5	47	39
30322	110	240	54.5	50	42
30328QWAP6	140	300	67.75	62	53
30330	150	320	72	65	55
32030	150	225	48	45	38
32032	160	240	51	48	41
32034	170	260	57	54	46
QT23	180	290	70	70	54
QT1(3)	190	280	49	46	36.5
QT6	190	300	49	46	36.5
32038	190	290	64	60	52
QT26-4	192	280	58	60	41
QT29(1)	193.675	282.575	50.8	47.625	36.513
QT26-2	194	280	58	60	41
QT26	195	280	58	60	41
QT13	200	290	49	46	36.5
QT25	200	280	51	48	41
QT27	200	290	55	60	41
32040	200	310	70	66	56
QT34	202	290	58	60	41
QT28(3)	202.5	290	49	46	36.5
QT33	205	283	51	48	41
QT36	210	290	51	48	41
QT5	210	320	701	66	56
QT24	210	320	70	75	56
QT19-1	214	330	70	70	56
QT35	215	315	65	70	49
QT32	218	315	65	70	49
32944QWASA	220	300	51	48	41
32052Q	260	400	87	82	71

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