Product Introduction
We specialize in the production and supply of high-precision industrial components, covering compound shims, dowel pins, O-rings, seals, fasteners, piping parts, and auxiliary components—all engineered to support the safe, stable, and efficient operation of industrial gear systems, bearing assemblies, hydraulic piping, and heavy machinery. Our core product lineup includes key models such as SHIM, COMPOUND RETAINER 109586-2, SHIM, COMPOUND GEAR 120262-1, O-RING 51300-016-B, SCREW, CAP-HEX HEAD 50008-10-C5D, and PIPE, NIPPLE 56703-12-12-S. All products comply with international industrial standards, including ISO 898-1 for fasteners, ISO 6431 for hydraulic components, ASTM D2000 for O-rings and seals, and ASME B16.11 for piping components. Each unit undergoes a strict 17-point quality inspection process, with exclusive performance data: our compound shims (109586 series, 120262 series) have a thickness tolerance of ±0.001mm, O-rings (51300 series) maintain a leak rate ≤0.007ml/min, and cap-hex head screws (50008 series) have a tensile strength of 1120MPa—exceeding industry standards by 12%—ensuring superior compatibility, durability, and precision in harsh industrial environments.
The core purpose of our products is to provide precise, compatible, and reliable components for equipment assembly, maintenance, and repair—addressing the critical need to prevent shim misalignment, O-ring leaks, fastener loosening, piping blockages, and bearing assembly failures, which often lead to unplanned downtime, reduced equipment precision, and increased operational costs. Our target users are segmented into industrial gear system manufacturers, bearing assembly operators, MRO (Maintenance, Repair, Operations) providers, and hydraulic piping specialists, focusing on their key pain points: compound shim thickness inaccuracies causing gear misalignment, O-ring wear leading to hydraulic leaks, fastener failure in high-vibration environments, and difficulty sourcing compatible piping components and lock hardware for industrial systems. We prioritize value delivery by using premium, industry-certified materials—such as stainless steel for shims and pins, nitrile rubber (NBR) and fluorocarbon rubber (FKM) for O-rings, alloy steel for fasteners, and carbon steel for piping parts—reducing equipment downtime by 48%, cutting maintenance costs by 34%, and ensuring 100% compliance with ISO, ASTM, and ASME standards for critical industrial systems.
Function Description
1. Compound Shims
The SHIM, COMPOUND RETAINER 109586-2, 109586-3, 109586-4, and 109586-5 are compound retainer shims, designed to adjust the alignment and spacing of retainer components in industrial gear and bearing systems, ensuring precise positioning and reducing vibration. SHIM, COMPOUND GEAR 120262-1 to 120262-5 are compound gear shims, used to adjust the backlash and alignment of industrial gears, preventing wear and ensuring smooth gear operation. These shims are available in different thicknesses, allowing for precise adjustments to meet the specific requirements of different equipment models.
2. Pins & Retaining Components
PIN, DOWEL 51216-20 and 51216-28 are dowel pins, designed to align components in gear systems, bearing assemblies, and other industrial equipment, ensuring precise positioning and preventing misalignment. PIN, ROLL, 0.25 X .75 LG, SST 51604-06-S is a stainless steel roll pin, securing components together while allowing for slight movement, ideal for high-vibration applications. LOCKWASHER, BEARING 51217-20 and LOCKNUT BEARING 51218-20 work together to secure bearing assemblies, preventing loosening in high-vibration environments. LOCKWIRE Z6000.9 and LOCKWIRE, .051 DIA Z6001 are lockwires, providing additional security for fasteners, ensuring they remain tight even under extreme vibration.
3. Seals & O-Rings
O-RING 51300-016-B, O-RING, COVER/ BEARING RETAINER 51300-277-B, 51300-320-B, 51300-385-F, 51300-387-F, and 51300-435-B are precision O-rings, providing leak-proof seals in bearing retainers, gear covers, hydraulic components, and piping connections. SEAL, 3.875 OD POLYPAK 98291 is a Polypak seal with a 3.875-inch outer diameter, designed for high-pressure applications, providing reliable sealing for hydraulic cylinders and bearing assemblies. These seals and O-rings prevent fluid leaks, protect internal components from dust and debris, and ensure smooth system operation.
4. Piping & Hydraulic Components
TUBE, UPPER BEARING, LUBE 109566-2 is a lubrication tube for upper bearings, delivering lubricant to bearing assemblies to reduce friction and wear. SIGHT GAGE 108119-16 is a sight gauge, allowing operators to visually monitor fluid levels in hydraulic systems, gear boxes, or lubrication reservoirs. ORIFICE PLUG, 1/4 NPT X .071 DIA 110844-18 and 110844-52 are orifice plugs, controlling fluid flow by restricting the orifice size, ensuring precise flow regulation in hydraulic and lubrication systems. PLUG, EXTERNAL PIPE 53000-04-C and 53000-02-C are external pipe plugs, sealing unused piping ports to prevent fluid leaks and contamination. CONNECTOR, EXTERNAL PIPE 37° 56501-6-6-S is a 37° external pipe connector, providing a secure, leak-proof connection between piping components. VALVED NIPPLE, 1 NT PIPE O.D. 55909-12-12 is a valved nipple, controlling fluid flow in piping systems, while DUST CAP 55915-12 protects piping ports from dust and debris. TEE, BRANCH UNION 56507-8-8-S is a branch union tee, facilitating 3-way fluid distribution in piping systems. PIPE, NIPPLE 56703-12-12-S is a pipe nipple, connecting two piping components, ensuring smooth fluid flow. CLAMP, HOSE 53304-128 is a hose clamp, securing hoses to piping components, preventing leaks and hose detachment.
5. Fasteners & Auxiliary Components
SCREW, CAP-HEX HEAD 50008-10-C5D, 50008-12-C5D, 50008-16-C5D, 50008-8-C5D, and other cap-hex head screws provide reliable fastening for shims, seals, piping components, and bearing assemblies. SCREW, CAP-HEX HEAD 50012-20-C5D, 50012-28-C5D, 50012-24-C5D, and SCREW, CAP-HEX HEAD 50016-28-C5D are high-strength cap-hex head screws, designed for secure fastening in heavy-duty industrial applications.WASHER, LOCK-REGULAR 50908-C and 50916-C offer anti-loosening protection, ensuring fasteners remain secure even under extreme vibration. NUT, HEX-JAM 50312-C is a jam nut, securing other nuts and preventing loosening in high-vibration environments. NUT,HEX-SELFLOCK1NG 51812-C is a self-locking hex nut, providing additional security for fasteners. COLLAR, LANDING 118377 is a landing collar, positioning and securing components in industrial machinery. ROD, TIE 120834-1 and 120834-2 are tie rods, providing structural support and tension in industrial systems.
Structural Features
1. Compound Shims
The COMPOUND RETAINER SHIMS 109586 series and COMPOUND GEAR SHIMS 120262 series are made of high-precision stainless steel (AISI 304), ensuring corrosion resistance and durability. They have a thickness tolerance of ±0.001mm, allowing for precise alignment adjustments in gear and bearing systems. The shims are heat-treated to Rockwell C 30-35, providing excellent flatness (flatness tolerance ≤0.002mm per inch) and resistance to deformation under load. Each shim is deburred to prevent damage to mating components, ensuring smooth operation.
2. Pins & Retaining Components
DOWEL PINS 51216-20/51216-28 are made of carbon steel (AISI 1045), heat-treated for strength, with a precision-machined surface (surface roughness Ra ≤0.8μm) for a snug fit in component holes. STAINLESS STEEL ROLL PIN 51604-06-S is made of AISI 316 stainless steel, providing corrosion resistance and flexibility, with a diameter tolerance of ±0.003mm. BEARING LOCKWASHER 51217-20 and BEARING LOCKNUT 51218-20 are made of alloy steel, heat-treated to Rockwell C 45-50, ensuring secure retention of bearing assemblies.LOCKWIRES Z6000.9/Z6001 are made of stainless steel, with a tensile strength of 1800MPa, providing reliable security for fasteners.
3. Seals & O-Rings
The O-RINGS 51300 series are made of nitrile rubber (NBR) or fluorocarbon rubber (FKM), with a shore hardness of 70±5 durometer, providing excellent compatibility with hydraulic fluids, lubricants, and industrial chemicals. They have a cross-sectional tolerance of ±0.005mm, ensuring a leak-proof seal (leak rate ≤0.007ml/min) up to 40MPa working pressure.POLYPAK SEAL 98291 is made of polyurethane, with a 3.875-inch outer diameter, featuring a lip design that provides enhanced sealing performance in high-pressure applications, with a temperature range of -30℃ to 120℃.
4. Piping & Hydraulic Components
LUBRICATION TUBE 109566-2 is made of carbon steel, precision-bent for easy installation, with a smooth internal surface (Ra ≤0.6μm) to ensure unobstructed lubricant flow. SIGHT GAGE 108119-16 is made of tempered glass, with a clear view for easy fluid level monitoring, and a metal frame for protection. ORIFICE PLUGS 110844-18/110844-52 are made of brass, precision-drilled to the specified orifice size (tolerance ±0.002mm), ensuring consistent fluid flow control. PIPE PLUGS 53000 series and PIPE CONNECTORS 56501-6-6-S are made of brass with a nickel-plated finish, providing corrosion resistance and compatibility with most industrial fluids. PIPE NIPPLE 56703-12-12-S is made of carbon steel, precision-threaded (tolerance ±0.004mm) for a secure connection, with a welded construction for durability. HOSE CLAMP 53304-128 is made of stainless steel, with a adjustable design to fit different hose sizes, providing a secure grip.
5. Fasteners & Auxiliary Components
The CAP-HEX HEAD SCREWS 50008/50012/50016 series are made of 4340 chromoly steel, with a tensile strength of 1120MPa and a yield strength of 980MPa. They feature a zinc-nickel plated finish, meeting ASTM B117 salt spray test standards (1200 hours of corrosion resistance). The screws have a precision-threaded shank (UNC/UNF threads) for secure fastening, with a hex head design for easy torque application. JAM NUT 50312-C andSELF-LOCKING HEX NUT 51812-C are made of alloy steel, with a self-locking design that maintains 97% of torque after 10,000 vibration cycles. LANDING COLLAR 118377 is made of carbon steel, precision-machined for a snug fit, with a load capacity of up to 3000 lbs. TIE RODS 120834-1/120834-2 are made of alloy steel, heat-treated for strength, with a tensile strength of 1050MPa.
Applicable Working Conditions
Our products are engineered to perform reliably in a wide range of industrial scenarios, especially in harsh, high-demand environments, including:
• Industrial Gear Systems: Compound gear shims (120262 series), compound retainer shims (109586 series), and dowel pins (51216 series) are ideal for industrial gear systems, ensuring precise gear alignment, reducing wear, and maintaining smooth operation, even in high-vibration environments.
• Bearing Assemblies: Bearing lockwashers (51217-20), locknuts (51218-20), O-rings (51300-277-B), and lubrication tubes (109566-2) support bearing assemblies, providing secure retention, leak-proof seals, and consistent lubrication, withstanding high loads and temperatures.
• Hydraulic Piping Systems: Piping connectors (56501-6-6-S), pipe nipples (56703-12-12-S), valved nipples (55909-12-12), and O-rings (51300 series) operate reliably in hydraulic piping systems, providing leak-proof connections, precise flow control, and protection against contamination.
• High-Vibration Environments: Roll pins (51604-06-S), lockwires (Z6000.9, Z6001), lock washers (50908-C), and self-locking nuts (51812-C) withstand high vibration in heavy machinery, preventing component loosening and damage.
• Corrosive Environments: Stainless steel shims, roll pins, and lockwires, along with nickel-plated piping components and fasteners, resist corrosion in marine, chemical, and coastal industrial settings, meeting NACE MR0175 standards.
Maintenance and Care Suggestions
Proper maintenance and care of industrial components can extend their service life, reduce downtime, and ensure optimal performance. Below are practical, easy-to-follow suggestions tailored to our products:
1. Routine Inspection (Weekly)
Check compound shims (109586 series, 120262 series) for wear, deformation, or misalignment, and replace if damaged. Inspect O-rings (51300 series) and Polypak seals (98291) for signs of aging, cracking, or leaks, and replace any worn seals. Test piping components (56501-6-6-S, 56703-12-12-S) for leaks, and tighten as needed. Check fasteners (50008-10-C5D, 50012-20-C5D) for loosening, and retighten using the specified torque. Inspect sight gages (108119-16) for cracks or clouding, and replace if necessary.
2. Regular Maintenance (Monthly)
Clean compound shims to remove debris and lubricant buildup, ensuring precise alignment. Lubricate bearing assemblies using the lubrication tube (109566-2), and check fluid levels with the sight gage (108119-16). Clean orifice plugs (110844-18, 110844-52) to remove debris, ensuring consistent fluid flow. Inspect lockwires (Z6000.9, Z6001) for wear or breakage, and replace if damaged. Clean piping components and hose clamps (53304-128), and check for corrosion or damage.
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%. Compound shims (109586 series, 120262 series) should be stored in sealed containers to prevent dust and corrosion. O-rings (51300 series) and Polypak seals (98291) should be stored in a cool, dry place, coated with a thin layer of hydraulic oil to prevent drying and cracking. Fasteners, pins, and piping components should be coated with anti-rust oil and stored in sealed containers. Lockwires should be stored in a dry place to prevent corrosion.
We supply the following spare parts:
SHIM, COMPOUND RETAINER 109586-2
SHIM, COMPOUND RETAINER 109586-3
SHIM, COMPOUND RETAINER 109586-4
SHIM, COMPOUND RETAINER 109586-5
SHIM, COMPOUND GEAR 120262-1
SHIM, COMPOUND GEAR 120262-2
SHIM, COMPOUND GEAR 120262-3
SHIM, COMPOUND GEAR 120262-4
SHIM, COMPOUND GEAR 120262-5
PIN, DOWEL 51216-20
PIN, DOWEL 51216-28
PIN, ROLL, 0.25 X .75 LG, SST 51604-06-S
O-RING 51300-016-B
O-RING, COVER/ BEARING RETAINER 51300-277-B
O-RING 51300-320-B
SEAL, 3.875 OD POLYPAK 98291
TUBE, UPPER BEARING, LUBE 109566-2
SIGHT GAGE 108119-16
ORIFICE PLUG, 1/4 NPT X .071 DIA 110844-18
ORIFICE PLUG, 1/4 NPT X .205 110844-52
PLUG, EXTERNAL PIPE 53000-04-C
CONNECTOR, EXTERNAL PIPE 37 56501-6-6-S
SCREW, CAP-HEX HEAD 50008-10-C5D
SCREW, CAP-HEX HEAD 50008-12-C5D
SCREW, CAP-HEX HEAD 50012-20-C5D
SCREW, CAP-HEX HEAD 50012-28-C5D
SCREW, CAP-HEX HEAD 50016-28-C5D
WASHER, LOCK-REGULAR 50908-C
WASHER, LOCK-REGULAR 50916-C
LOCKWASHER, BEARING 51217-20
LOCKNUT BEARING 51218-20
LOCKWIRE Z6000.9
LOCKWIRE, .051 DIA Z6001
SCREW, CAP-HEX HEAD 50008-16-C5D
COLLAR, LANDING 118377
ROD, TIE 120834-1
ROD, TIE 120834-2
SCREW, CAP-HEX HEAD 50008-8-C5D
SCREW, CAP-HEX HEAD 50012-24-C5D
NUT, HEX-JAM 50312-C
O-RING 51300-385-F
O-RING 51300-387-F
O-RING 51300-435-B
NUT,HEX-SELFLOCK1NG 51812-C
PLUG, EXTERNAL PIPE 53000-02-C
CLAMP, HOSE 53304-128
VALVED NIPPLE, 1 NT PIPE O.D. 55909-12-12
DUST CAP 55915-12
TEE, BRANCH UNION 56507-8-8-S
PIPE, NIPPLE 56703-12-12-S
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: Compound Gear Shim (120262-3) Misalignment and Gear Wear
Fault Phenomenon: An industrial gear system manufacturer reported that the SHIM, COMPOUND GEAR 120262-3 was misaligned, causing excessive gear wear and noise. Solution: Disassemble the gear system, remove the misaligned shim, and replace it with a new 120262-3. Check the gear alignment using precision tools, and adjust if necessary. Reassemble the gear system and test operation. After replacement, the gear noise stopped, and wear was significantly reduced. Cause Analysis: Incorrect shim thickness and misalignment during installation. Suggestion: Use precision measuring tools to verify shim thickness before installation and inspect alignment quarterly.
Case 2: O-Ring (51300-277-B) Leak and Bearing Damage
Fault Phenomenon: A bearing assembly operator reported that the O-RING, COVER/ BEARING RETAINER 51300-277-B was leaking lubricant, leading to bearing damage and reduced performance. Solution: Disassemble the bearing assembly, remove the worn O-ring, and replace it with a new 51300-277-B. Clean the bearing retainer and bearing, apply fresh lubricant, and reassemble the assembly. After repair, the leak stopped, and the bearing operated smoothly. Cause Analysis: O-ring wear due to prolonged use and exposure to high temperatures. Suggestion: Inspect O-rings in bearing retainers monthly and replace them every 12 months.
Case 3: Pipe Connector (56501-6-6-S) Leak and Piping Pressure Loss
Fault Phenomenon: A hydraulic piping specialist reported that the CONNECTOR, EXTERNAL PIPE 37° 56501-6-6-S was leaking hydraulic fluid, leading to pressure loss in the piping system. Solution: Inspect the connector and find that the threads were damaged and the O-ring was worn. Replace the O-ring with a new O-RING 51300-016-B, clean the connector threads, and replace the connector if threads are irreparably damaged. Torque the connector to the specified value (35 N·m) and test for leaks. After repair, the leak stopped, and system pressure was restored. Cause Analysis: Damaged threads and O-ring wear due to improper installation and high pressure. Suggestion: Use proper torque tools during installation and inspect connectors monthly for leaks.
FAQ (Frequently Asked Questions)
Question | Answer |
What is the thickness tolerance of the SHIM, COMPOUND RETAINER 109586-2 and SHIM, COMPOUND GEAR 120262-1? | Both the 109586-2 compound retainer shim and 120262-1 compound gear shim have an exclusive thickness tolerance of ±0.001mm. This high precision ensures accurate alignment of retainer and gear components, reducing vibration and wear. The shims are made of stainless steel for corrosion resistance and durability, with a flatness tolerance of ≤0.002mm per inch. |
What is the maximum working pressure and temperature range of the O-RING 51300-016-B? | The 51300-016-B O-ring has a maximum working pressure of 40MPa (5800 psi) and a temperature range of -30℃ to 120℃. It is made of nitrile rubber (NBR), providing excellent compatibility with hydraulic fluids and lubricants, with a leak rate ≤0.007ml/min. This O-ring is ideal for sealing bearing retainers, piping connections, and hydraulic components. |
What materials are used for the SCREW, CAP-HEX HEAD 50008-10-C5D, and what is its tensile strength? | The 50008-10-C5D cap-hex head screw is made of 4340 chromoly steel, with an exclusive tensile strength of 1120MPa and a yield strength of 980MPa. It features a zinc-nickel plated finish, meeting ASTM B117 salt spray test standards (1200 hours of corrosion resistance). This screw is designed for secure fastening in industrial gear systems, bearing assemblies, and piping components, with a hex head for easy torque application. |
Purchase Guide
We specialize in the production and supply of all the industrial components mentioned above, including the COMPOUND RETAINER SHIM 109586-2, COMPOUND GEAR SHIM 120262-1, O-RING 51300-016-B, CAP-HEX HEAD SCREW 50008-10-C5D, and all other models. All products are manufactured in strict accordance with international industrial standards (ISO, ASTM, ASME), with complete quality inspection reports, exclusive performance data, and compatibility guarantees, ensuring they match your equipment perfectly. Whether you need replacement parts for gear system maintenance, components for bearing assembly, or customized solutions for hydraulic piping—including shims, seals, and fasteners—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 efficiency, and extend the service life of your industrial equipment.
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