Ultra PX Belt HA Type (Oil proof/Water proof type) 　Major Specifications

Major Specifications

Belt width	Unit mass g/(mm width x m length)	Initial tension 　N {kgf}
		Recommended value	Maximum value
25	4.7	317 {32.3}	421 {42.9}

Material	Rubber	High strength synthetic rubber (Oil Proof Type)
	Tooth fabric	Nylon with superior wear-resistance
	Cord	High strength glass fiber
Ambient conditions	Oil and water resistant	Can be used in contact with oil and water (including water-soluble coolant).
	Available for the following belt sprocket types	PX Belt Sprocket P8M
	Operating Ambient Temperature	0℃～60℃（When in contact with oil ）
	RoHS compliant	Compliant
	Electroconductive	None

※Can be used in heat resistant applications. Contact a Tsubaki representative for more information.

Belt length

※ Expand all Collapse all

Circumference 480　～　632

Circumference 640　～　800

Circumference 816　～　920

Circumference 936　～　1096

Circumference 1120　～　1248

Circumference 1264　～　1440

Circumference 1480　～　1888

Circumference 1904　～　2304

Circumference 2320　～　2944

Circumference 3048　～　4400

Standard transmission capacity 　kW　(Multiplied by the 1.79 coefficient of width)

Small belt sprocket rotation speed r/min	Upper row: Number of teeth of small belt sprocket Lower row: Pitch diameter 　mm
	20	22	24	26	28	30	32	34	36	38	40	44	48	50	56	60	64	72
	50.93	56.02	61.12	66.21	71.30	76.39	81.49	86.58	91.67	96.77	101.86	112.05	122.23	127.32	142.60	152.79	162.97	183.35
20	0.21	0.23	0.25	0.26	0.28	0.30	0.34	0.35	0.37	0.39	0.42	0.48	0.51	0.55	0.62	0.68	0.73	0.85
40	0.37	0.41	0.46	0.50	0.53	0.57	0.62	0.66	0.69	0.75	0.78	0.87	0.96	1.02	1.16	1.25	1.37	1.59
60	0.51	0.57	0.62	0.68	0.75	0.80	0.87	0.93	1.00	1.05	1.12	1.27	1.39	1.44	1.66	1.79	1.95	2.25
100	0.80	0.89	0.98	1.07	1.16	1.27	1.34	1.43	1.53	1.64	1.73	1.93	2.14	2.25	2.59	2.81	3.04	3.50
200	1.41	1.57	1.75	1.89	2.07	2.23	2.39	2.57	2.75	2.93	3.13	3.47	3.86	4.06	4.65	5.08	5.49	6.39
300	1.98	2.20	2.43	2.66	2.88	3.11	3.34	3.59	3.84	4.09	4.34	4.86	5.40	5.69	6.55	7.12	7.71	9.00
400	2.48	2.75	3.04	3.34	3.61	3.93	4.22	4.52	4.85	5.17	5.49	6.17	6.87	7.21	8.28	9.03	9.80	11.4
500	2.95	3.27	3.63	3.97	4.31	4.68	5.06	5.42	5.81	6.19	6.58	7.39	8.21	8.64	9.97	10.8	11.8	13.7
600	3.40	3.77	4.17	4.58	4.99	5.40	5.83	6.26	6.69	7.14	7.60	8.53	9.50	10.0	11.5	12.6	13.6	16.0
700	3.83	4.26	4.70	5.15	5.62	6.08	6.56	7.05	7.55	8.05	8.59	9.64	10.7	11.2	13.0	14.2	15.5	18.1
800	4.24	4.72	5.19	5.71	6.22	6.74	7.28	7.82	8.37	8.95	9.52	10.7	11.9	12.5	14.5	15.8	17.2	20.2
900	4.61	5.13	5.69	6.22	6.78	7.37	7.98	8.55	9.18	9.79	10.4	11.7	13.1	13.8	15.9	17.4	18.9	22.2
1000	4.99	5.54	6.15	6.73	7.35	7.98	8.62	9.27	9.91	10.6	11.2	12.7	14.2	14.9	17.3	18.9	20.6	24.2
1100	5.37	5.99	6.62	7.28	7.94	8.62	9.30	10.0	10.7	11.4	12.2	13.7	15.3	16.1	18.7	20.5	22.3	26.2
1200	5.76	6.42	7.10	7.80	8.53	9.23	9.98	10.7	11.5	12.3	13.1	14.7	16.5	17.4	20.2	22.1	24.0	28.2
1300	6.12	6.83	7.55	8.32	9.05	9.86	10.6	11.4	12.2	13.1	13.9	15.7	17.6	18.6	21.5	23.6	25.7	30.2
1400	6.49	7.24	8.01	8.82	9.61	10.4	11.2	12.1	13.0	13.9	14.8	16.7	18.7	19.7	22.9	25.1	27.4	32.2
1450	6.67	7.44	8.25	9.05	9.89	10.7	11.6	12.5	13.4	14.3	15.3	17.2	19.3	20.3	23.6	25.9	28.3	33.2
1500	6.85	7.64	8.48	9.30	10.1	11.0	11.9	12.8	13.8	14.7	15.7	17.7	19.8	20.9	24.3	26.7	29.1	34.2
1600	7.17	8.03	8.87	9.79	10.7	11.6	12.5	13.5	14.5	15.5	16.6	18.7	20.9	22.1	25.7	28.1	30.7	36.1
1750	7.71	8.60	9.54	10.5	11.5	12.4	13.5	14.5	15.6	16.7	17.8	20.1	22.6	23.8	27.7	30.4	33.2	39.1
1800	7.87	8.82	9.77	10.7	11.7	12.7	13.8	14.8	16.0	17.1	18.2	20.6	23.1	24.4	28.3	31.1	34.0	40.0
2000	8.53	9.57	10.5	11.6	12.7	13.9	15.0	16.2	17.4	18.6	19.9	22.5	25.2	26.6	31.0	34.0	37.2	43.9
2400	9.88	11.0	12.2	13.4	14.7	16.0	17.4	18.8	20.2	21.6	23.1	26.2	29.3	31.0	36.1	39.8	43.5	51.4
2800	11.0	12.4	13.7	15.2	16.6	18.1	19.6	21.2	22.8	24.5	26.2	29.7	33.4	35.3	41.2	45.4	49.7	58.9
3000	11.6	13.1	14.5	16.0	17.5	19.2	20.8	22.5	24.2	25.9	27.8	31.5	35.4	37.4	43.8	48.2	52.8	62.6
3600	13.0	14.6	16.3	17.9	19.7	21.5	23.3	25.3	27.2	29.2	31.3	35.5	40.1	42.3	49.6	54.7	60.1	71.3
4000	13.8	15.5	17.3	19.1	21.0	22.9	24.9	27.0	29.0	31.2	33.4	38.1	42.9	45.4	53.3	58.8	64.5	76.7
5000	15.5	17.5	19.6	21.6	23.8	26.0	28.3	30.8	33.1	35.7	38.3	43.7	49.4	52.3	61.5	68.0
6000	17.0	19.3	21.3	23.7	26.2	28.7	31.3	34.0	36.7	39.5	42.5	48.5	54.9	58.2	68.7	76.0

・Avoid using in the gray highlighted range as the belt will have a shorter service life.

・The lower right of the bold outlined cells have a belt sprocket speed greater than 33m/s. Ensure the belt sprocket is well balanced.

Standard Transmission Torque 　N・m　(Multiplied by the 1.79 coefficient of width)

Small belt sprocket rotation speed r/min	Upper row: Number of teeth of small belt sprocket Lower row: Pitch diameter 　mm
	20	22	24	26	28	30	32	34	36	38	40	44	48	50	56	60	64	72
	50.93	56.02	61.12	66.21	71.30	76.39	81.49	86.58	91.67	96.77	101.86	112.05	122.23	127.32	142.60	152.79	162.97	183.35
20	100	109	118	127	136	148	158	169	179	190	203	227	251	263	299	327	354	409
40	90.9	100	109	118	127	138	149	159	168	177	187	209	232	244	277	300	328	378
60	82.1	91.2	100	109	118	128	139	149	158	168	179	200	222	231	264	286	310	359
100	76.7	86.0	93.4	102	111	120	128	137	146	157	166	184	204	215	247	269	290	334
200	67.8	75.1	83.4	90.7	98.9	106	114	122	131	140	149	166	184	193	222	242	262	304
300	63.1	69.9	77.3	84.6	91.8	99.1	106	114	122	130	138	155	172	181	208	226	245	286
400	59.4	65.8	72.6	79.6	86.4	93.7	100	108	115	123	131	147	163	172	197	215	234	272
500	56.3	62.6	69.2	75.8	82.5	89.5	96.6	103	110	118	125	141	156	165	190	207	225	262
600	54.0	60.1	66.4	72.8	79.2	86.0	92.9	99.7	106	113	121	135	151	159	183	200	217	254
700	52.2	57.9	64.0	70.3	76.6	83.0	89.6	96.3	102	109	117	131	146	154	178	194	211	247
800	50.4	56.3	62.1	68.0	74.2	80.3	86.8	93.4	100	106	113	127	142	150	173	189	206	241
900	49.0	54.5	60.3	66.2	71.9	78.2	84.6	90.7	97.3	103	110	124	138	146	169	185	201	235
1000	47.7	52.9	58.8	64.2	70.3	76.0	82.3	88.6	94.6	101	107	121	135	142	165	180	197	230
1100	46.5	52.0	57.4	63.1	68.9	74.8	80.9	86.8	93.0	99.7	106	119	133	140	162	178	194	227
1200	45.8	51.1	56.5	62.1	67.8	73.5	79.4	85.5	91.4	97.9	104	117	131	138	160	175	191	225
1300	44.9	50.1	55.4	61.0	66.5	72.3	78.2	84.1	90.2	96.4	102	115	129	136	158	173	189	222
1400	44.3	49.4	54.7	60.1	65.5	71.2	77.1	82.8	89.1	95.2	101	114	127	134	156	171	187	220
1450	44.0	49.0	54.2	59.6	65.1	70.7	76.4	82.3	88.4	94.5	100	113	127	134	155	170	186	218
1500	43.6	48.6	53.8	59.2	64.6	70.3	75.8	81.9	87.7	93.9	100	113	126	133	154	169	185	218
1600	42.7	47.9	52.9	58.5	63.9	69.2	75.0	80.9	86.8	92.9	98.9	111	125	131	153	168	183	215
1750	42.0	47.0	52.0	57.2	62.8	68.0	73.7	79.4	85.3	91.2	97.3	110	123	130	151	165	181	213
1800	41.7	46.7	51.9	56.9	62.4	67.6	73.3	78.9	85.0	90.7	97.0	109	122	129	150	165	180	212
2000	40.8	45.6	50.4	55.8	60.8	66.4	71.7	77.5	83.2	89.1	95.0	107	120	127	148	162	177	209
2400	39.2	43.8	48.6	53.5	58.7	63.9	69.2	74.8	80.3	86.0	92.1	104	116	123	143	158	173	204
2800	37.7	42.2	47.0	51.9	56.7	61.7	67.1	72.4	78.0	83.5	89.5	101	114	120	140	155	169	200
3000	37.2	41.7	46.3	51.1	56.0	61.0	66.4	71.6	77.1	82.6	88.6	100	112	119	139	153	168	199
3600	34.5	38.6	43.3	47.6	52.2	57.1	62.1	67.1	72.1	77.6	83.0	94.3	106	112	131	145	159	189
4000	33.1	37.2	41.3	45.6	50.1	54.7	59.6	64.4	69.2	74.6	79.8	90.9	102	108	127	140	154	183
5000	29.7	33.4	37.4	41.3	45.4	49.7	54.0	58.8	63.3	68.1	73.0	83.4	94.3	100	117	129
6000	27.0	30.7	34.0	37.7	41.7	45.6	49.7	54.0	58.5	63.0	67.6	77.3	87.3	92.7	109	121

・Avoid using in the gray highlighted range as the belt will have a shorter service life.

・The lower right of the bold outlined cells have a belt sprocket speed greater than 33m/s. Ensure the belt sprocket is well balanced.

Available for the following belt sprocket types

Type		Material	Base Model No.	Tooth no. range
AF/A BF/B		Carbon steel	P8M25AF P8M25A P8M25BF P8M25B	20T～120T
		Aluminum	P8M25AF-A P8M25A-A P8M25BF-A P8M25B-A	20T～120T
Fit bore		Carbon steel	P8M25AF-H□□□N-J□□D□M□□ P8M25BF-H□□□N-J□□D□M□□	20T～60T
Lock S type		Carbon steel	P8M25AF-□S□□□ P8M25BF-□S□□□	20T～72T
		Aluminum	P8M25AF-A-□S□□□	20T～60T
		Plated	P8M25AF-□S□□□-K	20T～72T