This standard specifies the product classification, technical requirements, test methods, inspection rules, marking and packaging of cable pulleys. This standard applies to marine derrick devices, including pulleys used in marine derrick cranes, and is used in conjunction with "cable pulleys". CB/T 153-1995 Cable pulley CB/T153-1995 Standard download decompression password: www.bzxz.net

Shipbuilding Industry Standard of the People's Republic of China
CB/T 153—1995
Wire rope pulley
Issued on December 19, 1995
China State Shipbuilding Corporation
Implementation on August 1, 1996
Shipbuilding Industry Standard of the People's Republic of China
Subject content and scope of application
CB/T153—1995
Classification number: U24
Replaces CB153-76
This standard specifies the product classification, technical requirements, test methods and inspection rules, marking and packaging of wire rope pulleys (hereinafter referred to as pulleys). This standard applies to marine derrick devices, including pulleys used for marine derrick cranes, and is used in conjunction with "Wire Rope Pulley" and other standards. Product classification
2.1 The types and parameters of pulleys are as shown in Table 1.
Sliding bearing
Cast steel rope pulley
Rolling bearing
Cast steel rope pulley
Sliding bearing
Hot-rolled rope pulley
Rolling bearing
Hot-rolled rope pulley
Applicable rope diameter
19.5~34.5
19.5~34.5
The structural type and basic dimensions of 2.2AH pulley shall be as shown in Figure 1 and Table 2. Approved by China State Shipbuilding Corporation on December 19, 1995 175
Nominal diameter of pulley
Implementation on August 1, 1996
Nominal diameter of pulley
Applicable maximum
rope diameter
Rope safety
working load
CB/T153-1995
Continued Table 2
Note: When Dz has two values, the upper one is the pulley for single-disc block, and the lower one is the pulley for double-disc block. The structural type and basic dimensions of 2.3AG type pulley shall be according to Figure 2 and Table 3. Figure 2 1-Pulley body; 2--hole block diagram; 3-rolling bearing; 4-sleeve; 5-cover; 6-retractable washer Table 3 Nominal diameter of pulley Applicable maximum rope diameter Safe rope working load 2.4 The structural type and basic dimensions of BH pulley are as shown in Figure 3 and Table 4. B Bearing model (GB 297)
Pulley nominal diameter
Applicable maximum
Rope diameter
CB/T153-1995
1-Pulley body; 2-Bushing; 3-Conical end set screwTable 4
Rope safety
Working load
Note: When Ds has two values, the upper one is for single-disc pulley and the lower one is for double-disc pulley. The structural type and basic dimensions of 2.5BG type pulley are shown in Figure 4 and Table 5.42
Pulley nominal
Applicable maximum
Rope diameter
2.6Marking example
CB/T153- 1995
1--Pulley body; 2-hole block diagram; 3-rolling bearing; 4-sleeve; 5-cover; 6-stop pad diagram 5
Rope safety
Working load
Pulley with nominal diameter of 250mm and shaft diameter of 40mm sliding bearing cast steel rope pulley pulley AH250×40CB/T153—1995
Pulley with nominal diameter of 450mm and shaft diameter of 75mm rolling bearing hot rolled steel rope pulley pulley BG450×75CB/T153—1995
3 Technical requirements
3.1 The main parts and materials of the pulley are in accordance with Table 6. Bearing model
(GB297)
Nominal diameter of pulley
Applicable maximum
Rope diameter
CB/T153-1995
1-Pulley body; 2-Bushing; 3-Conical end set screwTable 2
Rope safety
Working load
Part name
Pulley body
Sleeve, nut
CB/T153-1995
ZG230-450
Carbon structural steel
Copper alloy
Carbon structural steel
After the pulley is assembled, the oil reservoir should be filled with lubricating grease. Q235-A
ZCuAI9Mn2 or QA19-2
Q235-A
Standard No.bZxz.net
GB11352—89
GB700—88
GB1176—87
GB5233--85
GB700—88
The hole and shaft of AH and BH pulleys are matched to H10/d10. The hole and shaft of AG and BG pulleys are matched to H8/f7. The surface of the parts should be free of defects such as burrs, cracks, rust, etc. that affect the strength, and the outer sharp edges should be rounded. The machined surface of the casting shall not have defects such as sand holes, pores, shrinkage holes, cracks and looseness, and the non-machined surface shall not have defects that affect the strength. The weld of the hot-rolled pulley should be smooth and free of sand holes and undercuts. Each pulley shall be subjected to a static load test. After the test, the load-bearing parts shall not have permanent deformation or any defects. Test method
The pulley shall be subjected to a static load test according to the test load and loading method specified in Table 7. The pulley may also be subjected to a strength test after being assembled with the tackle. The test load is consistent with that of the corresponding tackle. The test time is 5 minutes. After the test, the pulley shall meet the requirements of 3.7. Table 7
Test loading method
Safe working load of steel rope, kN
Test load, kN
Inspection rules
Each pulley must be inspected and tested by the product quality inspection department of the manufacturer in accordance with the technical requirements and test methods of this standard. The product can only be shipped after it has passed the inspection and verified by the ship inspection department, and the product quality certificate and ship inspection certificate shall be issued. 6
Marking and packaging
6.1 Marking
CB/T153-1995
6.1.1Each pulley shall have a product label, which shall indicate the following: a.
Product model and specification;
Safe working load of the wire rope;
Manufacturer name;
Manufacture date.
Each pulley shall be marked with a ship inspection mark.
6.2 Packaging
When the pulley leaves the factory, it must be properly packaged to ensure that the product will not be damaged or corroded, and can meet the requirements of multiple loading and unloading and long-distance transportation.
Additional remarks:
This standard is proposed by the National Technical Committee for Ship Equipment Standardization. This standard is under the jurisdiction of Jiangnan Shipyard.
This standard is drafted by Jiangnan Shipyard, Changzhou Pulley Factory and Changshu Hoisting Machinery Factory. The main drafters of this standard are Zhang Songying, Xie Zhigang, Shen Maolin and Xue Huigang.
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