Ultra PX belt - oil proof type 　 Major Specifications

Major Specifications

Belt width	Unit mass　kg/m	Initial tension 　N {kgf}
		Recommended value	Maximum value
25	0.117	304 {31.0}	408 {41.6}

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 pulley types	PX Pulley 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

Circumference480　～　632

Circumference640　～　800

Circumference816　～　920

Circumference936　～　1096

Circumference1120　～　1264

Circumference1280　～　1480

Circumference1520　～　1904

Circumference1960　～　2320

Circumference2400　～　3048

Circumference3200　～　4400

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

Small pulley rotation speed r/min	Upper row: Number of teeth of small pulley 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	0.19	0.21	0.23	0.25	0.26	0.30	0.32	0.34	0.35	0.37	0.41	0.44	0.50	0.51	0.59	0.64	0.71	0.82
40	0.34	0.37	0.42	0.46	0.50	0.53	0.59	0.64	0.68	0.71	0.75	0.84	0.93	0.98	1.10	1.19	1.30	1.50
60	0.48	0.55	0.60	0.66	0.71	0.78	0.84	0.89	0.94	1.00	1.07	1.19	1.32	1.37	1.59	1.71	1.86	2.14
100	0.76	0.85	0.93	1.02	1.10	1.19	1.27	1.37	1.46	1.57	1.66	1.84	2.04	2.14	2.47	2.68	2.89	3.34
200	1.36	1.50	1.66	1.80	1.96	2.13	2.29	2.45	2.61	2.81	3.02	3.31	3.68	3.86	4.43	4.83	5.24	6.08
300	1.89	2.09	2.30	2.52	2.75	2.97	3.18	3.43	3.66	3.90	4.09	4.63	5.15	5.42	6.22	6.78	7.35	8.57
400	2.36	2.63	2.89	3.18	3.45	3.74	4.02	4.31	4.63	4.92	5.22	5.87	6.53	6.87	7.89	8.60	9.34	10.8
500	2.81	3.13	3.45	3.79	4.11	4.47	4.81	5.17	5.53	5.90	6.26	7.03	7.82	8.23	9.48	10.3	11.2	13.1
600	3.23	3.59	3.97	4.36	4.74	5.15	5.54	5.96	6.39	6.80	7.24	8.12	9.05	9.52	10.9	12.0	13.0	15.2
700	3.65	4.04	4.47	4.92	5.35	5.79	6.26	6.71	7.19	7.67	8.18	9.18	10.2	10.7	12.4	13.5	14.7	17.2
800	4.02	4.49	4.95	5.44	5.92	6.42	6.92	7.46	7.98	8.52	9.07	10.2	11.3	11.9	13.8	15.1	16.4	19.2
900	4.40	4.90	5.42	5.94	6.46	7.01	7.58	8.14	8.73	9.32	9.93	11.1	12.4	13.1	15.1	16.6	18.0	21.1
1000	4.76	5.29	5.87	6.40	6.99	7.58	8.19	8.82	9.45	10.0	10.7	12.1	13.5	14.2	16.5	18.0	19.6	23.0
1100	5.11	5.71	6.30	6.92	7.57	8.21	8.86	9.54	10.2	10.9	11.6	13.1	14.6	15.4	17.8	19.5	21.3	25.0
1200	5.47	6.12	6.76	7.42	8.10	8.80	9.50	10.2	10.9	11.7	12.4	14.0	15.7	16.5	19.2	21.0	22.9	26.9
1300	5.83	6.51	7.19	7.91	8.62	9.37	10.1	10.9	11.7	12.5	13.3	15.0	16.8	17.7	20.5	22.5	24.5	28.8
1400	6.19	6.90	7.64	8.39	9.16	9.97	10.7	11.5	12.4	13.2	14.1	16.0	17.8	18.8	21.8	23.9	26.1	30.7
1450	6.35	7.08	7.85	8.62	9.41	10.2	11.0	11.9	12.7	13.6	14.5	16.4	18.4	19.4	22.5	24.7	26.9	31.6
1500	6.53	7.28	8.07	8.86	9.68	10.5	11.3	12.2	13.1	14.0	15.0	16.9	18.9	19.9	23.1	25.4	27.7	32.6
1600	6.85	7.64	8.46	9.32	10.1	11.0	11.9	12.9	13.8	14.8	15.8	17.8	19.9	21.0	24.4	26.8	29.3	34.4
1750	7.35	8.21	9.09	10.0	10.9	11.8	12.8	13.8	14.8	15.9	17.0	19.2	21.5	22.7	26.4	28.9	31.6	37.2
1800	7.50	8.39	9.30	10.2	11.1	12.1	13.1	14.1	15.2	16.3	17.3	19.6	22.0	23.2	27.0	29.6	32.4	38.1
2000	8.16	9.11	10.1	11.1	12.1	13.2	14.3	15.4	16.6	17.7	18.9	21.4	24.0	25.3	29.5	32.4	35.4	41.8
2400	9.39	10.5	11.6	12.8	14.0	15.2	16.5	17.9	19.2	20.6	22.0	24.9	28.0	29.5	34.4	37.9	41.4	49.0
2800	10.5	11.8	13.1	14.4	15.8	17.2	18.7	20.2	21.8	23.3	25.0	28.3	31.8	33.6	39.3	43.3	47.4	56.1
3000	11.1	12.4	13.8	15.2	16.7	18.2	19.8	21.4	23.0	24.7	26.4	30.0	33.7	35.6	41.7	45.9	50.3	59.6
3600	12.4	13.9	15.5	17.1	18.7	20.4	22.2	24.0	25.9	27.8	29.8	33.9	38.1	40.3	47.3	52.1	57.2	67.9
4000	13.1	14.8	16.4	18.2	20.0	21.8	23.7	25.7	27.7	29.7	31.8	36.2	40.9	43.2	50.7	56.0	61.5	73.0
5000	14.8	16.7	18.6	20.6	22.6	24.8	27.0	29.3	31.6	34.0	36.5	41.6	47.0	49.8	58.6	64.7
6000	16.1	16.1	20.4	22.6	24.9	27.3	29.8	32.3	34.9	37.6	40.4	46.2	52.3	55.5	65.4	72.4

・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 pulley speed greater than 33m/s. Ensure the pulley is well balanced.

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

Small pulley rotation speed r/min	Upper row: Number of teeth of small pulley 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	95.2	103	112	121	129	147	155	164	173	181	199	216	242	250	285	311	337	389
40	82.5	91.1	104	112	121	130	138	151	160	169	177	199	221	234	264	286	312	360
60	78.2	86.9	95.5	104	112	124	133	141	150	159	170	191	211	220	252	272	295	342
100	73.2	81.9	88.9	97.5	106	115	122	130	139	149	158	175	195	205	235	256	277	318
200	64.6	71.6	79.4	86.4	94.3	101	109	117	124	133	144	158	175	184	211	230	249	290
300	60.1	66.5	73.5	80.5	87.5	94.5	101	109	116	124	130	147	163	172	198	215	233	272
400	56.5	62.6	69.2	75.8	82.3	89.3	95.9	102	110	117	124	140	156	163	188	205	223	259
500	53.7	59.6	66.0	72.3	78.5	85.2	92.0	98.6	105	112	119	134	149	157	181	197	214	250
600	51.5	57.2	63.1	69.4	75.5	81.9	88.4	94.8	101	108	115	129	143	151	174	191	207	242
700	49.7	55.3	61.0	66.9	73.0	79.1	85.3	91.6	98.0	104	111	125	139	146	169	185	201	235
800	48.1	53.7	59.0	64.7	70.7	76.6	82.6	88.9	95.2	101	108	121	135	142	165	180	196	229
900	46.7	51.9	57.4	63.0	68.5	74.4	80.5	86.4	92.7	98.9	105	118	132	139	161	176	191	224
1000	45.4	50.4	56.0	61.2	66.9	72.4	78.4	84.3	90.2	96.4	102	115	129	136	157	172	187	219
1100	44.3	49.5	54.7	60.1	65.6	71.2	76.9	82.6	88.6	94.8	101	113	127	133	155	169	185	216
1200	43.6	48.6	53.8	59.0	64.6	69.9	75.7	81.4	87.1	93.2	99.3	112	125	131	153	167	182	214
1300	42.7	47.7	52.8	58.1	63.3	68.9	74.4	80.1	85.9	91.8	97.9	110	123	130	150	165	180	211
1400	42.2	47.0	52.0	57.2	62.4	67.8	73.3	78.9	84.8	90.7	96.6	109	121	128	149	163	178	209
1450	41.8	46.7	51.7	56.7	62.1	67.3	72.8	78.4	84.1	90.0	95.9	108	121	127	148	162	177	208
1500	41.5	46.3	51.3	56.3	61.5	66.9	72.3	78.0	83.5	89.5	95.5	107	120	127	147	161	176	207
1600	40.8	45.6	50.4	55.6	60.8	66.0	71.4	76.9	82.6	88.4	94.3	106	119	125	146	160	174	205
1750	40.0	44.7	49.5	54.5	59.7	64.7	70.1	75.7	81.2	86.9	92.7	104	117	123	143	158	172	203
1800	39.7	44.5	49.4	54.2	59.4	64.4	69.8	75.1	80.9	86.4	92.3	104	116	123	143	157	171	202
2000	38.8	43.4	48.1	53.1	57.9	63.1	68.3	73.7	79.2	84.8	90.5	102	114	121	141	155	169	199
2400	37.4	41.7	46.3	51.0	55.8	60.8	66.0	71.2	76.6	81.9	87.7	99.3	111	117	137	150	165	194
2800	35.9	40.2	44.7	49.4	54.0	58.8	63.9	69.0	74.2	79.6	85.2	96.6	108	114	134	147	161	191
3000	35.4	39.7	44.2	48.6	53.3	58.1	63.1	68.1	73.3	78.7	84.3	95.5	107	113	132	146	160	189
3600	32.9	36.8	41.1	45.2	49.7	54.4	59.0	63.9	68.7	73.9	79.1	89.8	101	107	125	138	151	180
4000	31.5	35.4	39.3	43.4	47.7	52.0	56.7	61.3	66.0	71.0	76.0	86.6	97.5	103	121	133	146	174
5000	28.2	31.8	35.6	39.3	43.3	47.4	51.5	56.0	60.3	64.9	69.6	79.4	89.8	95.2	111	123
6000	25.7	25.7	32.3	35.9	39.7	43.4	47.4	51.5	55.6	59.9	64.4	73.5	83.2	88.2	104	115

・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 pulley speed greater than 33m/s. Ensure the pulley is well balanced.

Available for the following pulley 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-□□TJ P8M25BF-□□TJ	20T～60T
Lock S type		Carbon steel	P8M25AF-S□□ P8M25BF-S□□	20T～72T
		Aluminum	P8M25AF-A-S□□	20T～60T
		Plated	P8M25AF-□□-K	20T～72T