List of super precision double direction angular contact thrust ball bearings

The bidirectional thrust angular contact ball bearing is designed for the bidirectional axial positioning of the main shaft. These bearings are combined with cylindrical roller bearings of the NN 30 K or N 10 K series and are installed in the same housing hole. This kind of bearing combination can simplify the processing of the bearing seat hole.

The nominal inner and outer diameters of bidirectional thrust angular contact ball bearings are the same as those of corresponding cylindrical roller bearings. However, the outer diameter tolerance of the race is combined with the recommended bore and shape tolerance of the super-precision cylindrical roller bearing (bearing tolerance under standard conditions), so that the bearing bore has an appropriate radial clearance. If the outer ring is not axially compressed in the bearing seat, the clearance is sufficient to prevent the thrust bearing from bearing radial loads.

Designation	Basic size			Basic load rating		Achievable speed
				dynamic	static	Grease lubrication	Oil-air lubrication
	d[mm]	D[mm]	B[mm]	C[kN]	C0[kN]	[r/min]	[r/min]
BTW 35 CTN9/SP	35	62	34	16.8	39	11 000	14 000
BTW 40 CTN9/SP	40	68	36	19.5	46.5	10 000	13 000
BTW 45 CTN9/SP	45	75	38	22.1	54	9 500	12 000
BTW 50 CTN9/SP	50	80	38	22.5	60	9 000	11 000
BTW 55 CTN9/SP	55	90	44	30.2	80	7 500	9 000
BTM 60 ATN9/HCP4CDB	60	95	33	21.6	43	12 700	15 200
BTM 60 ATN9/P4CDB	60	95	33	21.6	43	10 100	12 900
BTM 60 BTN9/HCP4CDB	60	95	33	25	50	11 100	13 300
BTM 60 BTN9/P4CDB	60	95	33	25	50	9 000	11 500
BTW 60 CTN9/SP	60	95	44	30.7	83	7 500	9 000
BTM 65 ATN9/HCP4CDB	65	100	33	22	47.5	11 900	14 200
BTM 65 ATN9/P4CDB	65	100	33	22	47.5	9 500	12 100
BTM 65 BTN9/HCP4CDB	65	100	33	26	54	10 400	12 400
BTM 65 BTN9/P4CDB	65	100	33	26	54	8 400	10 900
BTW 65 CTN9/SP	65	100	44	31.9	90	7 000	8 500
BTM 70 ATN9/HCP4CDB	70	110	36	27.5	58.5	10 900	13 000
BTM 70 ATN9/P4CDB	70	110	36	27.5	58.5	8 700	11 100
BTM 70 BTN9/HCP4CDB	70	110	36	32	67	9 500	11 300
BTM 70 BTN9/P4CDB	70	110	36	32	67	7 700	9 900
BTW 70 CTN9/SP	70	110	48	39	112	6 700	8 000
BTM 75 ATN9/HCP4CDB	75	115	36	27.5	61	10 300	12 300
BTM 75 ATN9/P4CDB	75	115	36	27.5	61	8 200	10 400
BTM 75 BTN9/HCP4CDB	75	115	36	32.5	69.5	9 000	10 700
BTM 75 BTN9/P4CDB	75	115	36	32.5	69.5	7 300	9 400
BTW 75 CTN9/SP	75	115	48	39.7	116	6 300	7 500
BTM 80 ATN9/HCP4CDB	80	125	40.5	33.5	73.5	9 600	11 500
BTM 80 ATN9/P4CDB	80	125	40.5	33.5	73.5	7 600	9 700
BTM 80 BTN9/HCP4CDB	80	125	40.5	39	85	8 400	10 000
BTM 80 BTN9/P4CDB	80	125	40.5	39	85	6 800	8 700
BTW 80 CTN9/SP	80	125	54	47.5	140	5 600	6 700
BTM 85 ATN9/P4CDB	85	130	40.5	33.5	78	7 300	9 300
BTM 85 BTN9/HCP4CDB	85	130	40.5	40	88	8 000	9 500
BTM 85 BTN9/P4CDB	85	130	40.5	40	88	6 400	8 300
BTW 85 CTN9/SP	85	130	54	48.8	146	5 600	6 700
BTM 90 ATN9/HCP4CDB	90	140	45	39	91.5	8 500	10 100
BTM 90 ATN9/P4CDB	90	140	45	39	91.5	6 800	8 700
BTM 90 BTN9/HCP4CDB	90	140	45	46.5	102	7 400	8 800
BTM 90 BTN9/P4CDB	90	140	45	46.5	102	6 000	7 700
BTW 90 CTN9/SP	90	140	60	55.9	173	5 000	6 000
BTM 95 ATN9/HCP4CDB	95	145	45	40	93	8 200	9 800
BTM 95 ATN9/P4CDB	95	145	45	40	93	6 500	8 300
BTM 95 BTN9/HCP4CDB	95	145	45	46.5	106	7 200	8 600
BTM 95 BTN9/P4CDB	95	145	45	46.5	106	5 800	7 400
BTW 95 CTN9/SP	95	145	60	57.2	180	5 000	6 000
BTM 100 ATN9/HCP4CDB	100	150	45	41.5	102	7 900	9 400
BTM 100 ATN9/P4CDB	100	150	45	41.5	102	6 300	7 900
BTM 100 BTN9/HCP4CDB	100	150	45	48	116	6 900	8 200
BTM 100 BTN9/P4CDB	100	150	45	48	116	5 600	7 100
BTW 100 CTN9/SP	100	150	60	59.2	193	5 000	6 000
BTM 110 ATN9/HCP4CDB	110	170	54	57	137	7 000	8 300
BTM 110 ATN9/P4CDB	110	170	54	57	137	5 600	7 100
BTM 110 BTN9/HCP4CDB	110	170	54	65.5	153	6 100	7 300
BTM 110 BTN9/P4CDB	110	170	54	65.5	153	4 900	6 400
BTW 110 CTN9/SP	110	170	72	81.9	260	4 300	5 000
BTM 120 ATN9/HCP4CDB	120	180	54	58.5	146	6 500	7 700
BTM 120 ATN9/P4CDB	120	180	54	58.5	146	5 200	6 700
BTM 120 BTN9/HCP4CDB	120	180	54	69.5	166	5 700	6 800
BTM 120 BTN9/P4CDB	120	180	54	69.5	166	4 600	5 900
BTW 120 CTN9/SP	120	180	72	85.2	280	4 000	4 800
BTM 130 ATN9/HCP4CDB	130	200	63	73.5	186	5 900	7 000
BTM 130 ATN9/P4CDB	130	200	63	73.5	186	4 700	6 000
BTM 130 BTN9/HCP4CDB	130	200	63	85	208	5 100	6 100
BTM 130 BTN9/P4CDB	130	200	63	85	208	4 200	5 400
BTW 130 CTN9/SP	130	200	84	106	360	3 600	4 300
BTM 140 AM/HCP4CDB	140	210	63	73.5	190	5 600	6 700
BTM 140 AM/P4CDB	140	210	63	73.5	190	4 400	5 700
BTM 140 BM/HCP4CDB	140	210	63	86.5	216	4 900	5 800
BTM 140 BM/P4CDB	140	210	63	86.5	216	3 900	5 100
BTW 140 CM/SP	140	210	84	106	375	3 200	3 800
BTM 150 AM/HCP4CDB	150	225	67.5	86.5	228	5 200	6 200
BTM 150 AM/P4CDB	150	225	67.5	86.5	228	4 100	5 300
BTM 150 BM/HCP4CDB	150	225	67.5	104	260	4 500	5 300
BTM 150 BM/P4CDB	150	225	67.5	104	260	3 700	4 800
BTW 150 CM/SP	150	225	90	127	440	3 000	3 600
BTM 160 AM/HCP4CDB	160	240	72	98	260	4 900	5 800
BTM 160 AM/P4CDB	160	240	72	98	260	3 900	5 000
BTM 160 BM/HCP4CDB	160	240	72	114	290	4 300	5 100
BTM 160 BM/P4CDB	160	240	72	114	290	3 400	4 500
BTW 160 CM/SP	160	240	96	140	510	2 800	3 400
BTM 170 AM/HCP4CDB	170	260	81	118	315	4 500	5 300
BTM 170 AM/P4CDB	170	260	81	118	315	3 600	4 700
BTM 170 BM/HCP4CDB	170	260	81	140	360	3 900	4 600
BTM 170 BM/P4CDB	170	260	81	140	360	3 200	4 100
BTW 170 CM/SP	170	260	108	174	610	2 400	3 000
BTM 180 AM/HCP4CDB	180	280	90	140	365	4 200	5 000
BTM 180 AM/P4CDB	180	280	90	140	365	3 400	4 400
BTM 180 BM/HCP4CDB	180	280	90	163	425	3 600	4 300
BTM 180 BM/P4CDB	180	280	90	163	425	3 000	3 800
BTW 180 CM/SP	180	280	120	199	710	2 000	2 600
BTW 190 CM/SP	190	290	120	203	735	2 000	2 600
BTW 200 CM/SP	200	310	132	238	865	1 900	2 400

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