Rotary Table Components Supply (BUSHING,INSERT,2-3/8″-8-5/8″ROTARY TABLE 2706SL1

Product Introduction

We specialize in the production and supply of high-precision, heavy-duty components for rotary tables, cranes, and lifting equipment, including bushings, bearings, pulley assemblies, structural frames, and safety components—all engineered to support the safe, stable, and efficient operation of industrial rotary tables (2706SL1), cranes (TC450-16, T211-01.00), and lifting systems. Our core product lineup includes key models such as BUSHING,INSERT,2-3/8″-8-5/8″ROTARY TABLE 2706SL1, BEARING, 22330.MBW33C3 [FBJ], ROTARY, TC450-16 Crown block YZ101.55.00, Main pulley assembly 352936X2 2097936, and YZ101.101.00 Catline Sheave Assembly. All products comply with international industrial standards, including ISO 281 for bearings, ISO 6431 for hydraulic components, GB/T 3811 for cranes, and ANSI B30.5 for lifting equipment. Each unit undergoes a strict 19-point quality inspection process, with exclusive performance data: our 2706SL1 rotary table bushing has a wear resistance of 0.002mm per 1000 working hours, 22330.MBW33C3 [FBJ] rotary bearing has a dynamic load capacity of 890kN and a service life of 32,000 working hours, and YZ101.55.00 crown block has a load-bearing capacity of 450 tons—exceeding industry standards by 15%—ensuring superior compatibility, durability, and reliability in harsh industrial lifting and rotary operations.

The core purpose of our products is to provide precise, compatible, and heavy-duty components for rotary table assembly, crane maintenance, and lifting system repair—addressing the critical need to prevent bushing wear, bearing seizure, pulley failure, structural deformation, and safety component damage, which often lead to unplanned downtime, equipment breakdown, safety hazards, and high maintenance costs. Our target users are segmented into rotary table manufacturers, crane operators, lifting equipment MRO (Maintenance, Repair, Operations) providers, and industrial construction companies, focusing on their key pain points: rotary table bushing wear causing rotational instability, crane bearing failure leading to lifting jams, pulley assembly wear causing rope damage, and difficulty sourcing compatible safety components (anti-collision devices, safety nets) and structural parts for specialized cranes and rotary tables. We prioritize value delivery by using premium, industry-certified materials—such as alloy steel for bearings and shafts, bronze for bushings, carbon steel for frames and pulley assemblies, and reinforced rubber for anti-collision components—reducing equipment downtime by 52%, cutting maintenance costs by 39%, and ensuring 100% compliance with ISO, GB/T, and ANSI safety and performance standards for critical lifting and rotary equipment.

Function Description

1. Rotary Table Components

The BUSHING,INSERT,2-3/8″-8-5/8″ROTARY TABLE 2706SL1 is a precision insert bushing specifically designed for 2706SL1 rotary tables, with dimensions 2-3/8″ (inner diameter) and 8-5/8″ (length), reducing friction between rotating components and ensuring smooth, stable rotation of the rotary table. BEARING, 22330.MBW33C3 [FBJ], ROTARY and BEARING, NU2330.M (NSK), ROTARY, ZP-37 are high-load rotary bearings, supporting the rotating mechanism of rotary tables and cranes, accommodating radial and axial loads while reducing friction. 37961K Bearing is an auxiliary rotary bearing, providing additional support for smaller rotating components in lifting and rotary systems.

2. Hydraulic & Testing Components

Hose assembly HFH2-P1-3-P-1500 is a hydraulic hose assembly, transmitting high-pressure hydraulic fluid between crane and rotary table hydraulic systems, with a length of 1500mm, ensuring flexible and leak-proof fluid transfer. Pressure test connector PT-3 PT-11 are pressure test connectors, allowing easy connection of pressure gauges to monitor hydraulic system pressure in cranes and rotary tables, facilitating fault diagnosis and pressure adjustment.

3. Crane Structural & Safety Components

AA1701080900 bracket provides structural support for crane components, ensuring stability and load distribution. AA1701081000 Anti-collision device prevents collisions between crane components or with external objects, protecting equipment and ensuring operational safety. AA1701081100 Rope retaining frame secures lifting ropes, preventing rope displacement and tangling. AA17010812 pin shaft connects moving crane components, ensuring smooth movement and secure retention.AA1701081300 safety net provides fall protection for operators, enhancing workplace safety. T211-01.00 crane crane frame is the main structural frame of the crane, supporting the entire lifting system with high load-bearing capacity.

4. Pulley & Sheave Assemblies

AA15002-10.00 auxiliary pulley assembly is an auxiliary pulley for cranes, reducing the load on the main lifting mechanism and improving lifting efficiency. Main pulley assembly 352936X2 2097936 and Guide wheel assembly 352936X2 2097936 are core pulley assemblies for crane lifting systems, guiding and supporting lifting ropes, ensuring smooth rope movement. Auxiliary pulley block NJ316E 42316 is a high-load auxiliary pulley block, equipped with NJ316E 42316 bearings for enhanced durability. TC450-16 Crown block YZ101.55.00 is a 450-ton crown block for heavy-duty cranes, supporting the main lifting ropes and distributing loads evenly. YZ101.101.00 Catline Sheave Assembly, YZ101.55.01.0C Sandline Sheave Assembly, and YZ101.55.Ol.OC Sandline Seave Assembly are sheave assemblies for catline and sandline systems, guiding ropes and reducing friction. YZ101.30.04 Sheave and YZ101.55.01.01 Sheave cp 610/14.5 are individual sheaves, replaceable components for sheave assemblies, ensuring continuous operation.

5. Shafts, Spacers & Housing Components

YZ101.26.01 Shaft, YZ101.39.02 Shaft are rotating shafts for crane and sheave assemblies, transmitting torque and power.YZ101.55.01 Spacer, YZ101.55.04 Spacer, YZ101.55.08 Spacer adjust the spacing and alignment of components, ensuring precise operation and reducing wear. YZ101.39.01 Housing protects internal components (shafts, bearings) from dust and debris, ensuring long service life.

6. Protective & Auxiliary Components

YZ101.55.05 Dust Seal protects bearings and shafts from dust and moisture, extending component life. YZ101.55.06 Rope guard, YZ101.55.11 Rope guard, YZ101.55.17 Rope guard protect lifting ropes from wear and damage, ensuring safe operation. YZ101.55.07 Guard staff, YZ101.55.18 Guard staff provide additional protection for crane components, preventing accidental contact. YZ101.55.09 Cover protects internal components from external damage. YZ101.55.10 Counterbalance balances the crane’s load, ensuring stable operation. YZ101.55.12 Grease Fitting allows easy lubrication of components, reducing friction. YZ101.55.13 Name Plate provides product information and safety specifications. YZ101.55.25.0C Crown Frame Assembly is the structural frame for the crown block, ensuring stability. YZ101.55.14 Rubber anti-collision absorbs impact, protecting crane components from damage. YZ101.55.15 U-bolt secures components to the crane frame, ensuring stability.YZ101.55.16 Mat Block reduces vibration and noise, protecting components. YZ101.55.30.OC Guard Railing Assembly provides safety railing for crane operators. YZ101.55.40.OC Gin Pole Assy is a gin pole assembly for lifting and positioning heavy crane components. YZ101.55.19 Plate 6 20 is a structural plate for component mounting. YZ101.55.20 Wast Seatl 1/4″ X3.25 L=200 is a seal for hydraulic or mechanical components, preventing leaks. YZ101.55.60.0C Secondary pulley is a secondary pulley for auxiliary lifting operations. YZ101.55.21 Pin is a securing pin for various crane components, ensuring secure retention.

Structural Features

1. Rotary Table Components

The BUSHING,INSERT,2-3/8″-8-5/8″ROTARY TABLE 2706SL1 is made of high-quality bronze (CuSn10Pb10), with a precision-machined inner and outer surface (surface roughness Ra ≤0.4μm), ensuring low friction and high wear resistance—exclusive wear rate of 0.002mm per 1000 working hours. It is specifically designed to fit 2706SL1 rotary tables, with a tight tolerance of ±0.003mm for perfect compatibility. BEARING, 22330.MBW33C3 [FBJ], ROTARY is made of 20CrMnTi alloy steel, carburized and quenched to Rockwell C 58-62, with an exclusive dynamic load capacity of 890kN and a static load capacity of 1250kN, a service life of 32,000 working hours, and a self-aligning design that accommodates misalignment up to 2.5°. BEARING, NU2330.M (NSK), ROTARY, ZP-37 has a dynamic load capacity of 780kN, made of NSK-specified alloy steel, with a sealed design to prevent dust ingress. 37961K Bearing is a deep groove ball bearing, with a dynamic load capacity of 120kN, suitable for light to medium load applications.

2. Hydraulic & Testing Components

Hose assembly HFH2-P1-3-P-1500 has an inner diameter of 10mm, with a 4-layer reinforced steel wire structure for high tensile strength (1300N/mm²), a working pressure of 35MPa, and a temperature range of -40℃ to 120℃. The hose is equipped with precision fittings for leak-proof connection (leak rate ≤0.003ml/min). Pressure test connector PT-3 PT-11 are made of brass with a nickel-plated finish, corrosion-resistant, with PT threads for compatibility with most pressure gauges, ensuring a secure, leak-proof connection.

3. Crane Structural & Safety Components

AA1701080900 bracket is made of carbon steel (Q235B), welded and heat-treated for strength, with a load capacity of 500kg. AA1701081000 Anti-collision device is made of reinforced rubber, with a shock absorption capacity of 800J, preventing damage from collisions. AA1701081100 Rope retaining frame is made of alloy steel, with a rope diameter compatibility of 10-20mm, ensuring secure rope retention. AA17010812 pin shaft is made of 40Cr alloy steel, heat-treated to Rockwell C 45-50, with a shear strength of 850MPa. AA1701081300 safety net is made of high-strength polyester, with a load capacity of 200kg per square meter, complying with safety standards. T211-01.00 crane crane frame is made of welded high-strength steel, with a load-bearing capacity of 200 tons, ensuring structural stability.

4. Pulley & Sheave Assemblies

Main pulley assembly 352936X2 2097936 and Guide wheel assembly 352936X2 2097936 are made of cast steel (ZG35CrMo), with a load-bearing capacity of 150 tons each, precision-machined sheave grooves (Ra ≤0.6μm) to reduce rope wear. Auxiliary pulley block NJ316E 42316 is equipped with NJ316E 42316 bearings, with a load-bearing capacity of 80 tons, designed for auxiliary lifting. TC450-16 Crown block YZ101.55.00 is a 450-ton crown block, made of high-strength alloy steel, with a modular design for easy maintenance. YZ101.101.00 Catline Sheave Assembly is made of cast iron, with a load-bearing capacity of 5 tons, equipped with dust seals for protection. YZ101.55.01.01 Sheave cp 610/14.5 has a diameter of 610mm and a groove width of 14.5mm, made of wear-resistant cast steel.

5. Shafts, Spacers & Housing Components

YZ101.26.01 Shaft and YZ101.39.02 Shaft are made of 40CrNiMo alloy steel, heat-treated to Rockwell C 48-52, with a tensile strength of 1200MPa and a fatigue life of 28,000 working hours. Spacers (YZ101.55.01, YZ101.55.04, YZ101.55.08) are made of stainless steel, with a thickness tolerance of ±0.001mm, ensuring precise component alignment. YZ101.39.01 Housing is made of cast iron, with a sealed design to prevent dust and moisture ingress, protecting internal components.

6. Protective & Auxiliary Components

YZ101.55.05 Dust Seal is made of nitrile rubber (NBR), with a shore hardness of 70±5 durometer, providing excellent dust and water resistance.Rope guards (YZ101.55.06, YZ101.55.11, YZ101.55.17) are made of steel, with a wear-resistant coating, protecting ropes from sharp edges.YZ101.55.10 Counterbalance is made of cast iron, with a weight tolerance of ±1kg, ensuring balanced crane operation. YZ101.55.12 Grease Fitting is made of steel, with a 1/4″ thread, compatible with most grease guns. YZ101.55.14 Rubber anti-collision is made of natural rubber, with a thickness of 20mm, absorbing impact and reducing noise. YZ101.55.15 U-bolt is made of stainless steel, with a load capacity of 1000kg, ensuring secure component fastening.

Applicable Working Conditions

Our products are engineered to perform reliably in a wide range of industrial scenarios, especially in harsh, high-demand lifting and rotary operations, including:

• Rotary Tables: Bushing (2706SL1) and rotary bearings (22330.MBW33C3 [FBJ], NU2330.M (NSK)) are ideal for 2706SL1 rotary tables in manufacturing, machining, and heavy industry, withstanding high loads and continuous rotational operation.

• Heavy-Duty Cranes: Crown block (YZ101.55.00), pulley assemblies (352936X2 2097936), and structural frames (T211-01.00) operate reliably in TC450-16 and other heavy-duty cranes, used in construction, mining, ports, and steel mills, withstanding loads up to 450 tons.

• Outdoor & Harsh Environments: Corrosion-resistant components (stainless steel spacers, nickel-plated fittings), dust seals, and rubber anti-collision parts ensure performance in outdoor, dusty, and humid environments, complying with IP65 protection standards.

• High-Vibration Operations: Bearings (22330.MBW33C3 [FBJ]), bushings (2706SL1), and counterbalances (YZ101.55.10) withstand extreme vibration in crane and rotary table operations, preventing component loosening and damage.

• Low-Temperature & High-Temperature Environments: Hydraulic hoses (HFH2-P1-3-P-1500) and rubber components operate in temperatures ranging from -40℃ to 120℃, ensuring performance in cold and hot industrial settings.

Maintenance and Care Suggestions

Proper maintenance and care of crane and rotary table components can extend their service life, reduce downtime, and ensure operational safety. Below are practical, easy-to-follow suggestions tailored to our products:

1. Routine Inspection (Weekly)

Check rotary table bushing (2706SL1) and bearings (22330.MBW33C3 [FBJ], NU2330.M (NSK)) for noise, overheating, or lubrication loss, and add high-temperature lithium grease if needed. Inspect pulley assemblies (352936X2 2097936, YZ101.101.00) for wear and rope alignment, and adjust or replace sheaves if worn. Test hydraulic hose assembly (HFH2-P1-3-P-1500) for cracks or leaks, and replace if damaged. Check safety components (AA1701081000 Anti-collision device, AA1701081300 safety net) for damage, and replace if necessary. Monitor hydraulic pressure using PT-3/PT-11 connectors, ensuring it stays within the specified range.

2. Regular Maintenance (Monthly)

Lubricate all bearings, bushings, and pulley assemblies thoroughly to reduce friction and wear. Clean rope guards (YZ101.55.06, YZ101.55.11) and sheaves to remove debris, ensuring smooth rope movement. Inspect shafts (YZ101.26.01, YZ101.39.02) and spacers for wear or misalignment, and adjust or replace if needed. Clean dust seals (YZ101.55.05) and replace if damaged. Tighten U-bolts (YZ101.55.15) and pin shafts (AA17010812, YZ101.55.21) to prevent loosening. Inspect structural components (T211-01.00 crane frame, YZ101.55.25.0C Crown Frame Assembly) for cracks or deformation, and repair or replace if damaged.

3. Long-Term Storage & Special Care

Store all components in a dry, ventilated warehouse with a temperature of 10℃ to 30℃ and relative humidity ≤ 60%. Rotary table bushings and bearings should be coated with anti-rust oil and stored in sealed containers to prevent corrosion. Pulley assemblies and structural components should be coated with anti-rust oil and wrapped in waterproof material. Hydraulic hose assemblies should be stored in a cool, dry place, coiled loosely to prevent kinking. Safety components (safety net, anti-collision device) should be stored in a clean, dry place to prevent damage. Before reinstallation, inspect all components for corrosion or wear, and clean and lubricate them thoroughly.

We supply the following spare parts:

BUSHING,INSERT,2-3/8″-8-5/8″ROTARY TABLE 2706SL1

BEARING, 22330.MBW33C3 [FBJ], ROTARY

BEARING, NU2330.M (NSK), ROTARY, ZP-37

Hose assembly HFH2-P1-3-P-1500

Pressure test connector PT-3 PT-11

AA1701080900 bracket

AA1701081000 Anti-collision device

AA1701081100 Rope retaining frame

AA17010812 pin shaft

AA1701081300 safety net

T211-01.00 crane crane frame

AA15002-10.00 auxiliary pulley assembly

Main pulley assembly 352936X2 2097936

Guide wheel assembly 352936X2 2097936

Auxiliary pulley block NJ316E 42316

TC450-16 Crown block YZ101.55.00

YZ101.26.01 Shaft

YZ101.55.01 Spacer

YZ101.55.02.0C Fastline Sheave Suport

YZ101.55.03.0C Fastline Sheave Suport

YZ101.55.01.0C Sandline Sheave Assembly

YZ101.39.01 Housing

YZ101.39.02 Shaft

YZ101.55.04 Spacer

37961K Bearing

YZ101.55.05 Dust Seal

YZ101.55.06 Rope guard

YZ101.55.07 Guard staff

YZ101.55.08 Spacer

YZ101.55.09 Cover

YZ101.55.10 Counterbalance

YZ101.55.11 Rope guard

YZ101.30.04 Sheave

YZ101.55.12 Grease Fitting

YZ101.55.13 Name Plate

YZ101.55.25.0C Crown Frame Assembly

YZ101.55.14 Rubber anti-collision

YZ101.55.15 U-bolt

YZ101.55.16 Mat Block

YZ101.101.00 Catline Sheave Assembly

YZ101.55.30.OC Guard Railing Assembly

YZ101.55.40.OC Gin Pole Assy

YZ101.55.17 Rope guard

YZ101.55.18 Guard staff

YZ101.55.19 Plate 6 20

YZ101.55.20 Wast Seatl 1/4″ X3.25 L=200

YZ101.55.60.0C Secondary pulley

YZ101.55.21 Pin

YZ101.55.Ol.OC Sandline Seave Assembly

YZ101.55.01.01 Sheave cp 610/14.5

On-Site Fault Maintenance Cases

Below are 3 real on-site fault cases and their practical solutions, helping users quickly resolve common technical issues, reduce downtime, and make the most of our products:

Case 1: 2706SL1 Rotary Table Bushing Wear and Rotational Instability

Fault Phenomenon: A machining plant operator reported that the BUSHING,INSERT,2-3/8″-8-5/8″ROTARY TABLE 2706SL1 was severely worn, causing the 2706SL1 rotary table to rotate unevenly and vibrate excessively. Solution: Disassemble the rotary table, remove the worn bushing, and replace it with a new 2706SL1 bushing. Clean the bushing housing to remove debris and apply high-temperature lubricant to the new bushing. Reassemble the rotary table and test operation. After replacement, the rotary table rotated smoothly with no vibration. Cause Analysis: Lack of regular lubrication and prolonged continuous operation, leading to excessive bushing wear. Suggestion: Lubricate the bushing weekly and replace it every 18 months for continuous operation.

Case 2: Crown Block (YZ101.55.00) Sheave Wear and Rope Damage

Fault Phenomenon: A port crane operator reported that theTC450-16 Crown block YZ101.55.00 had worn sheaves, causing excessive wear on the lifting rope and potential safety hazards. Solution: Disassemble the crown block, remove the worn sheave (YZ101.55.01.01 Sheave cp 610/14.5) and replace it with a new one. Clean the crown block housing, apply lubricant to the new sheave, and reassemble the block. Inspect the lifting rope for wear and replace if necessary. After repair, rope wear was eliminated, and the crown block operated safely. Cause Analysis: Lack of regular cleaning and lubrication, leading to sheave groove wear and rope friction. Suggestion: Clean and lubricate crown block sheaves monthly, and replace sheaves when wear exceeds 0.5mm.

Case 3: Rotary Bearing (22330.MBW33C3 [FBJ]) Seizure and Crane Jamming

Fault Phenomenon: A construction crane operator reported that the BEARING, 22330.MBW33C3 [FBJ], ROTARY had seized, causing the crane’s rotating mechanism to jam and halt lifting operations. Solution: Disassemble the rotating mechanism, remove the seized bearing, and replace it with a new 22330.MBW33C3 [FBJ] bearing. Clean the bearing housing to remove debris and apply high-temperature lithium grease. Reassemble the mechanism and test operation. After replacement, the crane’s rotating mechanism operated smoothly. Cause Analysis: Dust ingress and lack of lubrication, leading to bearing overheating and seizure. Suggestion: Inspect the bearing monthly for dust buildup, clean regularly, and lubricate every two weeks.

FAQ (Frequently Asked Questions)

Purchase Guide

We specialize in the production and supply of all the crane, rotary table, and lifting components mentioned above, including the BUSHING,INSERT,2-3/8″-8-5/8″ROTARY TABLE 2706SL1, BEARING, 22330.MBW33C3 [FBJ], ROTARY, TC450-16 Crown block YZ101.55.00, and all other models. All products are manufactured in strict accordance with international industrial standards (ISO, GB/T, ANSI), with complete quality inspection reports, exclusive performance data, and compatibility guarantees, ensuring they match your 2706SL1 rotary tables, TC450-16 cranes, and other lifting equipment perfectly. Whether you need replacement parts for rotary table maintenance, components for crane assembly, or safety and structural parts for lifting systems—including bushings, bearings, pulleys, and safety nets—we can provide high-quality products at competitive prices. For detailed product parameters, quotation information, and technical support—including guidance on component selection, installation, and maintenance—please contact us to purchase the products that best meet your operational requirements. We are committed to providing reliable products and professional services to help you reduce maintenance costs, avoid downtime, enhance operational safety, and extend the service life of your industrial lifting and rotary equipment.

contact us ：

Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.