Precision-Profile (BAR / GT) Pulleys

Name: Precision-Profile (BAR / GT) Pulleys
Brand: Wolfer

Specifications · Selector

Precision (BAR / GT) pulley selector

All 281 standard sizes from the catalogue PDF. Switch tooth profile / pitch with the tabs; search by model or filter by teeth. All dimensions in mm.

Select by tooth profile / pitch

Precision curved-tooth 1.5GT / 2GT / 3GT / 5GT / 8YU · high positioning accuracy, low backlash · multiple belt widths, bore made to drawing · PD pitch Ø / OD outside Ø / FID flange ID / FOD flange OD (mm)

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Teeth

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Complete size table · 281 sizes (static version for printing and full-text search)

Precision (BAR / GT) pulley selector — 1.5GT (98)
Part Code	Teeth z	PD	OD	FID	FOD
1.5GT-8	8	3.82	3.36	—	—
1.5GT-9	9	4.3	3.84	—	—
1.5GT-10	10	4.77	4.31	—	—
1.5GT-11	11	5.25	4.79	—	—
1.5GT-12	12	5.73	5.27	—	—
1.5GT-13	13	6.21	5.75	—	—
1.5GT-14	14	6.68	6.22	5	12
1.5GT-15	15	7.16	6.7	5	12
1.5GT-16	16	7.64	7.18	5	12
1.5GT-17	17	8.12	7.66	5	12
1.5GT-18	18	8.59	8.13	6	13
1.5GT-19	19	9.07	8.61	6	13
1.5GT-20	20	9.55	9.09	7	14
1.5GT-21	21	10.03	9.57	7	14
1.5GT-22	22	10.5	10.04	7	14
1.5GT-23	23	10.98	10.52	7	14
1.5GT-24	24	11.46	11	8	16
1.5GT-25	25	11.94	11.48	8	16
1.5GT-26	26	12.41	11.95	9	17
1.5GT-27	27	12.89	12.43	9	17
1.5GT-28	28	13.37	12.91	9	17
1.5GT-29	29	13.85	13.39	10	18
1.5GT-30	30	14.32	13.86	10	18
1.5GT-31	31	14.8	14.34	11	19
1.5GT-32	32	15.28	14.82	11	19
1.5GT-33	33	15.76	15.3	12	20
1.5GT-34	34	16.23	15.77	12	20
1.5GT-35	35	16.71	16.25	13	22
1.5GT-36	36	17.19	16.73	13	22
1.5GT-37	37	17.67	17.21	13	22
1.5GT-38	38	18.14	17.68	13	22
1.5GT-39	39	18.62	18.16	14	23
1.5GT-40	40	19.1	18.64	14	23
1.5GT-41	41	19.58	19.12	15	24
1.5GT-42	42	20.05	19.59	15	24
1.5GT-43	43	20.53	20.07	17	25
1.5GT-44	44	21.01	20.55	17	25
1.5GT-45	45	21.49	21.03	17	25
1.5GT-46	46	21.96	21.5	17	25
1.5GT-47	47	22.44	21.98	18	26
1.5GT-48	48	22.92	22.46	18	26
1.5GT-49	49	23.4	22.94	19	28
1.5GT-50	50	23.87	23.41	19	28
1.5GT-51	51	24.35	23.89	19	28
1.5GT-52	52	24.83	24.37	20	29
1.5GT-53	53	25.31	24.85	20	29
1.5GT-54	54	25.78	25.32	20	29
1.5GT-55	55	26.26	25.8	21	30
1.5GT-56	56	26.74	26.28	21	30
1.5GT-57	57	27.22	26.76	22	31
1.5GT-58	58	27.69	27.23	22	31
1.5GT-59	59	28.17	27.71	23	32
1.5GT-60	60	28.65	28.19	23	32
1.5GT-61	61	29.13	28.67	24	33
1.5GT-62	62	29.6	29.14	24	33
1.5GT-63	63	30.08	29.62	25	34
1.5GT-64	64	30.56	30.1	25	34
1.5GT-65	65	31.04	30.58	26	35
1.5GT-66	66	31.51	31.05	26	35
1.5GT-67	67	31.99	31.53	27	36
1.5GT-68	68	32.47	32.01	27	36
1.5GT-69	69	32.95	32.49	28	37
1.5GT-70	70	33.42	32.96	28	37
1.5GT-71	71	33.9	33.44	29	38
1.5GT-72	72	34.38	33.92	29	38
1.5GT-73	73	34.85	34.39	30	39
1.5GT-74	74	35.33	34.87	30	39
1.5GT-75	75	35.81	35.35	31	40
1.5GT-76	76	36.29	35.83	31	40
1.5GT-77	77	36.76	36.3	32	41
1.5GT-78	78	37.24	36.78	32	41
1.5GT-79	79	37.72	37.26	33	42
1.5GT-80	80	38.2	37.74	33	42
1.5GT-81	81	38.67	38.21	34	44
1.5GT-82	82	39.15	38.69	34	44
1.5GT-83	83	39.63	39.17	34	44
1.5GT-84	84	40.11	39.65	36	46
1.5GT-85	85	40.58	40.12	36	46
1.5GT-86	86	41.06	40.6	36	46
1.5GT-87	87	41.54	41.08	36	46
1.5GT-88	88	42.02	41.56	36	46
1.5GT-89	89	42.49	42.03	38	48
1.5GT-90	90	42.97	42.51	38	48
1.5GT-91	91	43.45	42.99	38	48
1.5GT-92	92	43.93	43.47	40	49
1.5GT-93	93	44.4	43.94	40	49
1.5GT-94	94	44.88	44.42	40	49
1.5GT-95	95	45.36	44.9	40	49
1.5GT-96	96	45.84	45.38	42	51
1.5GT-97	97	46.31	45.85	42	51
1.5GT-98	98	46.79	46.33	42	51
1.5GT-99	99	47.27	46.81	42	51
1.5GT-100	100	47.75	47.29	44	53
1.5GT-101	101	48.22	47.76	44	53
1.5GT-102	102	48.7	48.24	44	53
1.5GT-103	103	49.18	48.72	46	55
1.5GT-104	104	49.66	49.2	46	55
1.5GT-105	105	50.13	49.67	46	55

Precision (BAR / GT) pulley selector — 2GT (46)
Part Code	Teeth z	PD	OD	FID	FOD
2GT-14	14	8.91	8.4	—	13
2GT-39	39	24.83	24.32	—	29
2GT-15	15	9.55	9.04	—	14
2GT-40	40	25.46	24.96	—	30
2GT-16	16	10.19	9.68	—	14
2GT-41	41	26.1	25.59	—	31
2GT-17	17	10.82	10.31	—	16
2GT-42	42	26.74	26.23	—	31
2GT-18	18	11.46	10.95	—	16
2GT-43	43	27.37	26.87	—	32
2GT-19	19	12.1	11.59	—	16
2GT-44	44	28.01	27.5	—	32
2GT-20	20	12.73	12.22	—	17
2GT-45	45	28.65	28.14	—	33
2GT-21	21	13.37	12.86	—	18
2GT-46	46	29.28	28.78	—	34
2GT-22	22	14.01	13.5	—	18
2GT-47	47	29.92	29.41	—	34
2GT-23	23	14.64	14.13	—	19
2GT-48	48	30.56	30.05	—	35
2GT-24	24	15.28	14.77	—	20
2GT-49	49	31.19	30.69	—	36
2GT-25	25	15.92	15.41	—	20
2GT-50	50	31.83	31.32	—	36
2GT-26	26	16.55	16.04	—	21
2GT-56	56	35.65	35.14	—	40
2GT-27	27	17.19	16.68	—	22
2GT-60	60	38.2	37.69	—	42
2GT-28	28	17.83	17.32	—	23
2GT-64	64	40.74	40.24	—	46
2GT-29	29	18.46	17.95	—	23
2GT-72	72	45.84	45.33	—	51
2GT-30	30	19.1	18.59	—	24
2GT-80	80	50.93	50.42	—	56
2GT-31	31	19.74	19.23	—	24
2GT-84	84	53.48	52.97	—	59
2GT-32	32	20.37	19.86	—	25
2GT-90	90	57.3	56.79	—	63
2GT-33	33	21.01	20.5	—	25
2GT-96	96	61.12	60.61	—	66
2GT-34	34	21.65	21.14	—	27
2GT-100	100	63.66	63.15	—	71
2GT-35	35	22.28	21.77	—	27
2GT-36	36	22.92	22.41	—	27
2GT-37	37	23.55	23.05	—	28
2GT-38	38	24.19	23.68	—	29

Precision (BAR / GT) pulley selector — 3GT (50)
Part Code	Teeth z	PD	OD	FID	FOD
3GT-10	10	9.55	8.79	—	13
3GT-11	11	10.5	9.74	—	14
3GT-12	12	11.46	10.7	—	15
3GT-13	13	12.41	11.65	—	16
3GT-14	14	13.37	12.61	—	17
3GT-15	15	14.32	13.56	—	18
3GT-16	16	15.28	14.52	—	18
3GT-17	17	16.23	15.47	—	20
3GT-18	18	17.19	16.43	—	21
3GT-19	19	18.14	17.38	—	23
3GT-20	20	19.1	18.34	—	23
3GT-21	21	20.05	19.29	—	25
3GT-22	22	21.01	20.25	—	25
3GT-23	23	21.96	21.2	—	25
3GT-24	24	22.92	22.16	—	28
3GT-25	25	23.87	23.11	—	28
3GT-26	26	24.83	24.07	—	28
3GT-27	27	25.78	25.02	—	29
3GT-28	28	26.74	25.98	—	30
3GT-29	29	27.69	26.93	—	32
3GT-30	30	28.65	27.89	—	32
3GT-31	31	29.6	28.84	—	33
3GT-32	32	30.56	29.8	—	34
3GT-33	33	31.51	30.75	—	35
3GT-34	34	32.47	31.71	—	35
3GT-35	35	33.42	32.66	—	38
3GT-36	36	34.38	33.62	—	38
3GT-37	37	35.33	34.75	—	40
3GT-38	38	36.29	35.52	—	40
3GT-39	39	37.24	36.48	—	43
3GT-40	40	38.2	37.44	—	43
3GT-41	41	39.15	38.39	—	43
3GT-42	42	40.11	39.35	—	44
3GT-43	43	41.06	40.3	—	45
3GT-44	44	42.02	41.25	—	45
3GT-45	45	42.97	42.21	—	48
3GT-46	46	43.93	43.16	—	48
3GT-47	47	44.88	44.12	—	48
3GT-48	48	45.84	45.07	—	50
3GT-49	49	46.79	46.03	—	50
3GT-50	50	47.75	46.98	—	52
3GT-56	56	53.48	52.71	—	57
3GT-60	60	57.3	56.53	—	60
3GT-64	64	61.12	60.35	—	65
3GT-72	72	68.75	67.99	—	74
3GT-80	80	76.39	75.63	—	80
3GT-84	84	80.21	79.45	—	85
3GT-90	90	85.94	85.18	—	90
3GT-96	96	91.67	90.91	—	95
3GT-100	100	95.49	94.73	—	100

Precision (BAR / GT) pulley selector — 5GT (46)
Part Code	Teeth z	PD	OD	FID	FOD
5GT-14	14	22.28	21.14	—	25
5GT-15	15	23.87	22.73	—	28
5GT-16	16	25.46	24.32	—	30
5GT-17	17	27.06	25.91	—	30
5GT-18	18	28.65	27.5	—	32
5GT-19	19	30.24	29.1	—	34
5GT-20	20	31.83	30.69	—	35
5GT-21	21	33.42	32.28	—	38
5GT-22	22	35.01	33.87	—	38
5GT-23	23	36.61	35.46	—	40
5GT-24	24	38.2	37.05	—	43
5GT-25	25	39.79	38.65	—	43
5GT-26	26	41.38	40.24	—	45
5GT-27	27	42.97	41.83	—	48
5GT-28	28	44.56	43.42	—	48
5GT-29	29	46.15	45.01	—	50
5GT-30	30	47.75	46.6	—	52
5GT-31	31	49.34	48.2	—	54
5GT-32	32	50.93	49.79	—	55
5GT-33	33	52.52	51.38	—	56
5GT-34	34	54.11	52.97	—	58
5GT-35	35	55.7	54.56	—	60
5GT-36	36	57.3	56.15	—	61
5GT-37	37	58.89	57.74	—	64
5GT-38	38	60.48	59.34	—	64
5GT-39	39	62.07	60.93	—	66
5GT-40	40	63.66	62.52	—	67
5GT-41	41	65.25	64.11	—	69
5GT-42	42	66.85	65.7	—	70
5GT-43	43	68.44	67.29	—	74
5GT-44	44	70.03	68.89	—	74
5GT-45	45	71.63	70.48	—	75
5GT-46	46	73.21	72.07	—	78
5GT-47	47	74.8	73.66	—	80
5GT-48	48	76.39	75.25	—	80
5GT-49	49	77.99	76.84	—	83
5GT-50	50	79.58	78.83	—	85
5GT-56	56	89.13	87.98	—	95
5GT-60	60	95.49	94.35	—	100
5GT-64	64	101.86	100.72	—	105
5GT-72	72	114.59	113.45	—	120
5GT-80	80	127.32	126.18	—	130
5GT-84	84	133.69	132.55	—	140
5GT-90	90	143.24	142.1	—	150
5GT-96	96	162.79	151.65	—	160
5GT-100	100	159.15	158.01	—	162

Precision (BAR / GT) pulley selector — 8YU (41)
Part Code	Teeth z	PD	OD	FID	FOD
8YU-20	20	50.93	49.56	—	60
8YU-21	21	53.48	52.1	—	60
8YU-22	22	56.02	54.65	—	65
8YU-23	23	58.57	57.2	—	65
8YU-24	24	61.12	59.74	—	70
8YU-25	25	63.66	62.29	—	70
8YU-26	26	66.21	64.84	—	75
8YU-27	27	68.75	67.38	—	80
8YU-28	28	71.3	69.93	—	80
8YU-29	29	73.85	72.48	—	85
8YU-30	30	76.39	75.02	—	85
8YU-31	31	78.94	77.57	—	90
8YU-32	32	81.49	80.12	—	90
8YU-33	33	84.03	82.66	—	95
8YU-34	34	86.58	85.21	—	95
8YU-35	35	89.13	87.75	—	100
8YU-36	36	91.67	90.3	—	100
8YU-37	37	94.22	92.85	—	105
8YU-38	38	96.77	95.39	—	105
8YU-39	39	99.31	97.94	—	110
8YU-40	40	101.86	100.49	—	110
8YU-41	41	104.41	103.03	—	115
8YU-42	42	106.95	105.58	—	115
8YU-43	43	109.5	108.13	—	120
8YU-44	44	112.05	110.67	—	120
8YU-45	45	114.59	113.22	—	125
8YU-46	46	117.14	115.77	—	125
8YU-47	47	119.68	118.31	—	130
8YU-48	48	122.23	120.86	—	130
8YU-49	49	124.78	123.41	—	135
8YU-50	50	127.32	125.95	—	135
8YU-56	56	142.6	141.23	—	150
8YU-60	60	152.79	151.42	—	160
8YU-64	64	162.97	161.6	—	170
8YU-72	72	183.35	181.97	—	195
8YU-80	80	203.72	202.35	—	215
8YU-84	84	213.9	212.53	—	225
8YU-90	90	229.18	227.81	—	240
8YU-96	96	244.46	243.09	—	255
8YU-112	112	285.21	283.83	—	295
8YU-120	120	305.58	304.21	—	315

Static copy of the selector data for reference and printing; use the interactive selector above to filter, sort and request a quote. All dimensions in mm; full range and tolerances per the PDF catalogue.

Click a column header to sort. Dimensions in mm. Source: Wolfer timing-pulley catalogue. Download PDF catalogue ↗

FAQ

Common questions about this series

Precision-profile timing pulleys (BAR / GT): what size range does the table cover?

The table lists 281 standard pulleys across the 1.5GT / 2GT / 3GT / 5GT / 8YU pitches, 8–120 teeth. Bores, keyways, flanges and belt widths are machined to your drawing; other tooth counts and profiles are made to order.

Precision-profile timing pulleys (BAR / GT): what is it and when should I use it?

Precision-profile (BAR / GT curvilinear) timing pulleys covering MXL / XL and 3M / 5M / 8M / 14M, 1.5GT and more profiles and widths; high profile accuracy and low backlash for high-positioning-accuracy applications. Full dimension tables per profile in the PDF datasheet. Pick the profile by the belt you run: HTD curvilinear (3M/5M/8M/14M) for high torque with low noise, imperial trapezoidal (MXL/XL/L/H) for legacy drives, metric T/AT for European machines, and precision GT/BAR profiles when positioning accuracy and low backlash matter. Plain-bore pulleys are machined to your bore and keyway; taper-bore versions mount keyless on a Taper-Lock bush for quick service.

Precision-profile timing pulleys (BAR / GT): can I order a size that is not in the table, or just one piece?

Yes. Everything on this page is made to drawing, and the table is only the standard-size subset of the catalogue. Minimum order quantity is one piece — we routinely make single replacement parts for OEMs whose original supplier has discontinued the item. Send a DWG, STEP or PDF drawing (or a sample part): you get a formal quotation within 24 hours after the information is complete, and the first article ships within 30 days of drawing approval, with inspection records.

Precision-profile timing pulleys (BAR / GT): what do I need to send to get a quote?

Send the drawing or: tooth profile and pitch (e.g. HTD 5M, AT10, XL), number of teeth, belt width, flange (one side, both or none), bore with tolerance and keyway or Taper-Lock bush size, hub style and material (aluminium, steel, cast iron), surface treatment and quantity. To copy an obsolete pulley, send the worn part — we scan it and identify the profile.

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Precision-profile timing pulleys (BAR / GT)