KMTA Precision Lock Nuts KMTA Series manufacturer from China Yancheng Qihang Petroleum Machinery Co., Ltd

Payment Terms:	T/T
Place of Origin:	Jiangsu, China (Mainland)


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Product Detail

Model No.: KMTA Series

Production Capacity: 10000 pcs/month

Delivery Date: 20 days

Series: KMTA

Hardness: HRC 28-32

Lateral Deflection: 0.002mm

Applications: lathes, grinders, milling m...

Means of Transport: Ocean,Land,Air

Packing: Neutral Packaging

Product Name: Precision Lock Nuts

Material: Carbon Steel or Stainless S...

Thread Tolerance: ISO 4H

Surface Treatment: Alkaline Oxidation (Phospha...

Product Name: KMTA Series Precision Lock Nuts
Material: 42CrMo
Hardness: HRC 28-32
Thread Tolerance: ISO 4H
Lateral Deflection: 0.002mm

KMT and KMTA Precision Lock Nuts are used to locate bearings in machines and equipment that require high precision such as lathes, grinders, milling machines, motors, shut-off valves, spindle and ball screws.

These nuts have 3 brass pins angularly distributed around its circumference which are tightened against the shaft by screws. The pins are machined to match the shaft thread and its tilt is equal to nut thread angle so the nuts are not subject to axial loads or deformation, allowing locking in the exact position. Although they use the same locking system, the KMT and KMTA nuts differ by the external profile and tightening tools required.

Our Precision Lock Nuts are made of Carbon Steel as standard with optional choice of Stainless Steel.

Assembling

The KMT nuts are usually mounted with hook spanners, however, sizes up KMT 15 can be mounted using wrenches. The KMTA are mounted using pin wrenches or a pin-type face spanner and both of them are equipped with through-body screws. Once assembled, the bolts should be tighten lightly until each brass pin touches the shaft thread and only then tighten the screws alternately with a torque wrench until the recommended torque value is achieved for all the three bolts.

Removal

When removing the precision nuts KMT and KMTA, first loosen the three screws. Note that the brass pins can still be attached to the shaft thread, in order to proceed, tap the nuts near the pins using a copper or rubber hammer to loosen them. Only then remove the nut.

Technical Details

Product Name: Precision Lock Nuts

Series: KMTA

Material: 42CrMo

Hardness: HRC 28-32

Thread Tolerance: Metric Thread ISO 4H

Lateral Deflection: 0.002mm

Our Neutral Packaging of Precision Lock Nuts

Aside from KMT & KMTA series Precision Lock Nuts, we also produce other series Precision Nuts.

Drawing and Technical Data Sheet of KMTA series Precision Lock Nuts

KMTA Series Precision Lock Nuts
Precision Lock Nuts No.	G	Dm	D	B	N1	N2	P	Nm
Precision Lock Nuts No.	mm	mm	mm	mm	mm	mm
KMTA 5	M 25x1.5	42	35	20	4.3	4	M 6	8
KMTA 6	M 30x1.5	48	40	20	4.3	5	M 6	8
KMTA 7	M 35x1.5	53	47	20	4.3	5	M 6	8
KMTA 8	M 40x1.5	58	52	22	4.3	5	M 6	8
KMTA 9	M 45x1.5	68	58	22	4.3	6	M 6	8
KMTA 10	M 50x1.5	70	63	24	4.3	6	M 6	8
KMTA 11	M 55x1.5	75	70	24	4.3	6	M 6	8
KMTA 12	M 60x1.5	84	75	24	5.3	6	M 6	8
KMTA 13	M 65x1.5	88	80	25	5.3	6	M 6	8
KMTA 14	M 70x1.5	95	86	26	5.3	8	M 8	18
KMTA 15	M 75x1.5	100	91	26	6.4	8	M 8	18
KMTA 16	M 80x2	110	97	30	6.4	8	M 8	18
KMTA 17	M 85x2	115	102	32	6.4	8	M 10	35
KMTA 18	M 90x2	120	110	32	6.4	8	M 10	35
KMTA 19	M 95x2	125	114	32	6.4	8	M 10	35
KMTA 20	M 100x2	130	120	32	6.4	8	M 10	35
KMTA 22	M 110x2	140	132	32	6.4	8	M 10	35
KMTA 24	M 120x2	155	142	32	6.4	8	M 10	35
KMTA 26	M 130x3	165	156	32	6.4	8	M 10	35
KMTA 28	M 140x3	180	166	32	6.4	10	M 10	35
KMTA 30	M 150x3	190	180	32	6.4	10	M 10	35
KMTA 32	M 160x3	205	190	32	8.4	10	M 10	35
KMTA 34	M 170x3	215	205	32	8.4	10	M 10	35
KMTA 36	M 180x3	230	215	32	8.4	10	M 10	35
KMTA 38	M 190x3	240	225	32	8.4	10	M 10	35
KMTA 40	M 200x3	245	237	32	8.4	10	M 10	35