GOST 2224-93 Steel Thimbles for Steel Wire Ropes

GOST 2224-93 applies to forged and stamped thimbles for securing the ends of steel wire ropes of lifting and transport devices, climatic versions U, TU, KhL, TV and TS, placement categories 1, 2, 3 per GOST 15150.

This standard does not apply to thimbles used in nuclear power plants, aircraft construction, shipbuilding, marine and river rigging, or for raising vessels.

The requirements of this standard are mandatory.

Name of state	Name of national standardization body
Republic of Kyrgyzstan	Kyrgyzstandart
Republic of Moldova	Moldovastandart
Russian Federation	Gosstandart of Russia
Republic of Tajikistan	Tajikstandart
Turkmenistan	Main State Service “Turkmenstandartlary”

Steel Thimbles for Steel Wire Ropes Specifications Stell thimbles for stell wire ropes. Specifications	GOST 2224-93

1 Basic parameters and dimensions

The basic parameters and dimensions of thimbles correspond to those shown in the figure and table. OKP codes for thimbles are given in Appendix 1. Thimble dimensions per ISO 2262 are given in Appendix 2.

Dimensions in millimetres

Rope diameter	D	B	L	L₁	R	S	S₁	Weight, kg
From 2.0 to 2.5	10	5	16	24	1.5	1.0	1.5	0.002
Over 2.5 to 3.5	12	7	20	32	2.0	1.5	2.5	0.008
» 3.5 » 4.6	15	10	24	40	3.0	2.0	4.0	0.015
» 4.6 » 5.7	20	11	33	50	3.5	2.0	4.0	0.025
» 5.7 » 7.0	25	12	41	62	4.0	2.0	5.0	0.035
» 7.0 » 8.6	30	14	50	74	5.0	2.0	6.0	0.058
» 8.6 » 10.2	34	18	56	84	6.0	3.0	7.0	0.110
» 10.2 » 12.5	40	20	65	100	7.0	3.0	9.0	0.150
» 12.5 » 15.5	45	24	74	115	9.0	3.0	11.0	0.200
» 15.5 » 18.5	56	28	92	144	10.0	4.0	13.0	0.400
» 18.5 » 22.0	63	32	104	160	12.0	4.0	16.0	0.550
» 22.0 » 25.5	75	38	125	190	14.0	5.0	19.0	0.970
» 25.5 » 30.0	85	42	142	225	16.0	5.0	21.0	1.320
» 30.0 » 34.5	95	50	158	255	19.0	6.0	24.0	1.850
» 34.5 » 39.5	105	56	175	280	22.0	6.0	27.0	2.300
» 39.5 » 44.5	120	64	202	325	24.0	8.0	30.0	4.000
» 44.5 » 49.5	130	70	217	350	27.0	8.0	33.0	4.700
» 49.5 » 54.5	140	80	234	385	30.0	10.0	36.0	7.150
» 54.5 » 59.5	160	88	266	435	32.0	12.0	40.0	10.800
» 59.5 » 65.0	180	94	303	485	35.0	12.0	44.0	13.300
» 65.0 » 72.5	200	104	335	535	38.0	14.0	48.0	18.800
» 72.5 » 82.5	220	118	368	592	43.0	16.0	52.0	26.000

Example of thimble designation for D = 45 mm:

Thimble 45 GOST 2224-93

The same, for a thimble intended for operation at ambient temperatures below minus 40 °C, climatic version KhL, placement category 1 per GOST 15150:

Thimble 45 KhL 1 GOST 2224-93

Limit deviations of dimensions: D — H14; others — per corresponding tolerances.

Thimbles are selected according to rope diameter, regardless of its technical characteristics.

2 Technical requirements

Thimbles are manufactured in accordance with the requirements of this standard, per working drawings approved in accordance with the established procedure.

Material requirements

Thimbles intended for operation at ambient air temperatures not lower than minus 40 °C are manufactured from steel grades: St3sp5, St3Gps5 per GOST 14637; S255, S285, S345 per GOST 27772; 09G2-12, 09G2S-12 per GOST 19281; K260V, K270V; K310V, K330V, K350V of categories 5 and 6 per GOST 16523. The use of St3ps5 steel up to 10 mm thick and St3ps4 steel up to 6 mm thick per GOST 14637 is permitted.

Thimbles intended for operation at ambient air temperatures below minus 40 °C are manufactured from low-alloy steels with specified impact toughness values at the lowest operating temperature.

Thimbles may be manufactured from other steel grades providing physical and mechanical properties not lower than those of the specified steel grades.

The quality of materials used in the manufacture of thimbles is confirmed by certificates issued by the manufacturer.

Thimble forgings conform to group 1 per GOST 8479; machining allowances and tolerances on forging dimensions are per GOST 7505.

Surfaces of stampings and forgings shall be free from cracks, folds, laps and other defects extending beyond the tolerance for thimble manufacture.

Forgings and stampings are subjected to tempering.

At the customer’s request, thimbles may have a coating. The type and thickness of the coating are per GOST 9.306.

Marking

Each thimble with D = 40 mm or more is marked with the name or trademark of the manufacturer and the thimble designation per this standard.

Marking of thimbles with D less than 40 mm is applied on tags for each batch.

Transport marking of the cargo complies with the requirements of GOST 14192.

Packaging

Before packaging, each thimble is given temporary corrosion protection per GOST 9.104, option VZ-1 or VZ-4. The preservation protects thimbles from corrosion for 12 months. The inner packaging option is determined by the manufacturer’s documentation, approved in accordance with the established procedure.

Thimbles are packed in wooden boxes per GOST 2991, lined inside with waterproof material. The gross weight of the box shall not exceed 50 kg.

Thimbles of one size are packed in a box.

At the customer’s request, thimbles of different sizes, packed in cardboard boxes, may be packed together in one wooden box. Each cardboard box contains thimbles of one size. The cardboard box is marked with the thimble designation per this standard and the quantity.

The following are marked on the wooden box in indelible paint:

a) name or trademark of the manufacturer;

b) thimble designation per this standard;

c) quantity of packed thimbles;

d) manufacturer’s quality control stamp with the acceptance date;

e) number or name of the packer;

f) packing date.

A document containing the above information and the quantity of thimbles of each size is placed in each box.

When shipping thimbles to the Far North regions and hard-to-reach areas, the requirements of GOST 15846 shall be observed.

3 Acceptance

To verify the manufacturing quality of thimbles and their conformity to the requirements of this standard, the manufacturer conducts acceptance tests.

During acceptance tests, each thimble is checked for dimensions, manufacturing accuracy and surface quality. The correct use of materials, and the condition of marking, containers and packaging are also checked for each batch of thimbles shipped to the customer.

Verification of the marking condition on thimbles with D = 40 mm or more is performed on each thimble. A batch consists of thimbles of one size, manufactured from one steel melt.

4 Test methods

Dimensions, manufacturing accuracy and surface quality are checked visually using general-purpose measuring tools (rule, caliper, etc.), as well as special gauges and fixtures.

Verification of correct material use is performed by comparing material certificates with the requirements of this standard and the design documentation.

The presence and quality of marking and packaging are checked visually.

5 Transportation and storage

Thimbles packed in boxes are transported by all modes of transport in open and covered vehicles in accordance with the cargo transportation rules applicable to each mode of transport.

Transportation in containers, as well as in transport packages per GOST 24597 and GOST 26663, is permitted.

Transportation conditions in open vehicles are OZh1, and in covered vehicles OZh2, per GOST 15150.

Storage conditions for thimbles are 5 (OZh4) per GOST 15150.

6 Operating instructions

Before use, thimbles are de-preserved in accordance with the requirements of GOST 9.014.

7 Manufacturer’s warranties

The manufacturer guarantees that thimbles conform to the requirements of this standard, provided that the established conditions of transportation, storage and operation are observed.

The warranty period for thimbles shall be not less than the warranty period of the crane in which the thimbles are used.

APPENDIX 1 (informative). List of OKP codes for thimbles

Thimble designation (D)	OKP code of thimble for operation at temperature
	down to minus 40 °C	down to minus 60 °C
10	31 7829 3101	31 7829 3125
12	31 7829 3102	31 7829 3126
15	31 7829 3103	31 7829 3127
20	31 7829 3104	31 7829 3128
25	31 7829 3105	31 7829 3129
30	31 7829 3106	31 7829 3131
34	31 7829 3107	31 7829 3132
40	31 7829 3108	31 7829 3133
45	31 7829 3109	31 7829 3134
56	31 7829 3111	31 7829 3135
63	31 7829 3112	31 7829 3136
75	31 7829 3113	31 7829 3137
85	31 7829 3114	31 7829 3138
95	31 7829 3115	31 7829 3139
105	31 7829 3116	31 7829 3141
120	31 7829 3117	31 7829 3142
130	31 7829 3118	31 7829 3143
140	31 7829 3119	31 7829 3144
160	31 7829 3121	31 7829 3145
180	31 7829 3122	31 7829 3146
200	31 7829 3123	31 7829 3147
220	31 7829 3124	31 7829 3148

APPENDIX 2 (informative). Dimensions of thimbles for steel wire ropes per ISO 2262, mm

Rope diameter d	Fmax	Fmin	Cmax	Amin	Dmin	Gmin	Kmax
4	4.5	4.3	7	10	18	2.2	2.8
6	6.9	6.5	10.5	15	27	3.3	4.2
8	9.2	8.6	14	20	36	4.4	6.6
10	11.5	10.8	17.5	25	45	5.5	7
12	13.8	12.9	21	30	54	6.6	8.4
13	15	14	22.8	32.5	58.5	7.2	9.1
14	16.1	15.1	24.5	35	63	7.7	9.8
16	18.4	17.2	28	40	7	8.8	11.2
18	20.7	19.4	31.5	45	81	9.90	12.6
20	23	21.5	35	50	90	11	14
22	25.3	23.7	38.5	55	99	12.1	15.4
24	27.6	25.8	42	60	108	13.2	16.8
26	29.9	28	45.5	65	117	14.3	18.2
28	32.2	30.1	49	70	126	15.4	19.6
32	36.8	34.4	56	80	144	17.6	22.4
36	41.4	38.7	63	90	162	19.8	25.2
40	46	43	70	100	180	22	28
44	50.6	47.3	77	110	198	24.2	30.8
48	56.2	51.6	84	120	216	26.4	33.6
52	59.8	55.9	91	130	234	28.6	35.4
56	64.4	60.2	98	140	252	30.8	39.2
60	69	64.5	105	150	270	33	42

Designation of the referenced regulatory document	Clause/subclause number
GOST 9.014-78	2.4.1, 6
GOST 9.306-85	2.2.6
GOST 2991-85	2.4.2
GOST 7505-89	2.2.3
GOST 8479-70	2.2.3
GOST 14192-96	2.3.3
GOST 14637-89	2.2.1
GOST 15150-69	Introduction, 1.1, 5.2, 5.3
GOST 15846-79	2.4.7
GOST 16523-97	2.2.1
GOST 19281-89	2.2.1
GOST 24597-81	5.1
GOST 26663-85	5.1
GOST 27772-88	2.2.1
ISO 2262-84	Appendix 2