Model THK – Torque Limiter Coupling with Keyway Connection

Model THK – Torque Limiter Coupling with Keyway Connection
(7 sizes with rated torque from 5-650 Nm)

Design Description: A hub design for mounting pulleys, sprockets, or gears. Shaft connection is by hollow bore with keyway.

Bore Diameters: Metric or inch bores from 8-58 mm, or 0.315-2.283 inches. Keyway sizes must be specified.

Temperature Range: From as low as -30° C to as high as +120° C in standard version (3.6° F to 270° F). High temperature options available.

Sizes: THK-15, THK-30, THK-60, THK-150, THK-200, THK-300, THK-500

Sizing Chart:

THK		15	30	60	150	200	300	500
Adjustment Range available from - to (approx. values) (Nm)	T KN	5-15 12-25 20-40 35-70	5-20 10-30 20-60 50-100	10-30 25-80 50-115	20-70 45-150 80-225	30-90 60-160 140-280 250-400	100-200 150-240 220-440	80-200 200-350 320-650
Adjustment Range available from - to (approx. values) ("F" version)	T KN	7-15	8-20 or 16-30	10-30 20-40 30-60	20-60 40-80 80-150	80-140 or 130-200	120-180 160-300 300-450	50-150 100-300 250-500
Overall Length A (mm)	A	34	43	46	48.5	54	57	71.5
Overall length ("F" version) (mm)	AF	34	43	46	48.5	57	60	75
Actuation ring ∅ (mm)	B	55	65	73	92	99	120	135
Actuation ring ∅ ("F" Version) (mm)	BF	62	70	83	98	117	132	155
Inner Diameter from ∅ to ∅ H7 (mm)	D	8-19	12-25.4	12-30	15-38	20-44	25-50	25-58
Pilot Diameter h7 (mm)	E	40	47	55	68	75	82	90
Bolt-hole Circle Diameter ± 0.2 (mm)	F	47	54	63	78	85	98	110
Flange outside diameter -0.2 (mm)	G	53	63	72	87	98	112	128
Distance (mm)	K	8	8	11	12	12	15	21
Distance (mm)	L	27	35	37	39	44	47	59
Distance ("F" Version) (mm)	LF	27	37	39	41.5	47	51.5	68
Download - 2D DWG (W,D,G)
Download - 2D DWG (F)
Download - 2D PDF (W,D,G)
Download - 2D PDF (F)
Download - 3D STP (W,D,G)		STP	STP	STP	STP	STP	STP	STP
Download - 3D STP (F)		STP	STP	STP	STP	STP	STP	STP
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