12 Mar 2026

BEARING, SPHERICAL, PLAIN 99423-16, ENCODER 115299, TIMING BELT 120117

Product Introduction

We specialize in the production and supply of high-precision industrial components, covering spherical plain bearings, encoders, timing belts, precision fasteners, seals, gaskets, and structural brackets—all engineered to support the safe, stable, and efficient operation of industrial blowers, hydraulic accumulators, hammer unions, and precision machinery. Our core product lineup includes key models such as BEARING, SPHERICAL, PLAIN 99423-16, ENCODER 115299, TIMING BELT 120117, CONNECTOR, O-RING BOSS/37° 56529-12-8-S, and WASH PIPE ASSEMBLY, 3″ BORE 30123290. All products comply with international industrial standards, including ISO 12240 for spherical plain bearings, ISO 6431 for hydraulic components, ISO 898-1 for fasteners, and ASTM D2000 for O-rings and seals. Each unit undergoes a strict 16-point quality inspection process, with exclusive performance data: our spherical plain bearing (99423-16) has a load capacity of 28kN and a service life of 25,000 working hours, encoder (115299) maintains a positioning accuracy of ±0.02mm, and timing belt (120117) operates with a tension retention rate of 95% over 10,000 cycles—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 bearing seizure, encoder signal loss, timing belt wear, hydraulic leaks, and fastener loosening, which often lead to unplanned downtime, reduced precision, and increased operational costs. Our target users are segmented into industrial blower manufacturers, hydraulic accumulator operators, MRO (Maintenance, Repair, Operations) providers, and precision machinery specialists, focusing on their key pain points: spherical bearing wear causing mechanical jamming, encoder malfunctions disrupting precision control, timing belt slippage reducing operational efficiency, and difficulty sourcing compatible seals and gaskets for blower and hammer union systems. We prioritize value delivery by using premium, industry-certified materials—such as high-carbon steel for bearings, stainless steel for encoders, reinforced rubber for timing belts, brass with nickel plating for hydraulic connectors, and nitrile rubber for O-rings—reducing equipment downtime by 47%, cutting maintenance costs by 35%, and ensuring 100% compliance with ISO, ASTM, and SAE standards for critical industrial systems.

Function Description

1. Bearings & Rotational Components

The BEARING, SPHERICAL, PLAIN 99423-16 is a spherical plain bearing, designed to accommodate misalignment and radial/axial loads in industrial machinery, ensuring smooth rotational movement.SHAFT, ADAPTER 120116 connects different components, transmitting torque and ensuring precise alignment. PULLEY, ADAPTER 120119-1 and PULLEY, ENCODER 120119-2 work with the timing belt to transmit power, with the encoder pulley ensuring precise rotational feedback. TIMING BELT 120117 synchronizes the movement of pulleys and shafts, maintaining precise timing and preventing slippage in precision machinery. These components work together to ensure smooth, precise rotational movement in industrial systems.

2. Encoders & Feedback Components

The ENCODER 115299 is a precision encoder, designed to provide accurate rotational position and speed feedback for industrial machinery, enabling precise control and monitoring.SPRING (ENCODER) 120115 is a specialized spring for the encoder, ensuring proper tension and operation of the encoder’s internal components. Together, these components deliver reliable, high-precision feedback, critical for applications requiring precise motion control, such as industrial blowers and precision machinery.

3. Hydraulic & Sealing Components

The CONNECTOR, O-RING BOSS/37° 56529-12-8-S and CONNECTOR, O-RING BOSS/INT PIPE 56551-12-12S are high-pressure hydraulic connectors, providing leak-proof connections between hydraulic lines, accumulators, and other components. O-RING 51300-366-B, O-RING, MAIN OIL GALLERY 51300-223-F, and O-RING – SEAL, HAMMER UNION 51300-4-25-B are precision O-rings, providing leak-proof seals in hydraulic systems, oil galleries, and hammer unions. SEAL, HAMMER LUG UNION 79153 and LIP SEAL RING, 3″ HAMMER UNION 91923 seal hammer unions, preventing fluid leaks and protecting internal components. RESERVOIR BREATHER 71613 maintains pressure balance in hydraulic reservoirs, preventing contamination and ensuring smooth system operation. WASH PIPE ASSEMBLY, 3″ BORE 30123290 is a 3-inch bore wash pipe assembly, facilitating fluid flow and cleaning in industrial systems.

4. Gaskets & Structural Components

GASKET, BLOWER/DUCT 110110, GASKET, DUCT-MOTOR 110116, GASKET, BLOWER/SCROLL 110111, and GASKET, BLOWER/SCROLL 110112 are specialized gaskets for industrial blowers, ducts, and motors, providing airtight and leak-proof seals, preventing air or fluid loss. BRACKET, UPPER ACCUMULATOR 122845-500 is a structural bracket for upper accumulators, supporting and positioning the accumulator securely. SHIM, CARRIAGE (PERMANENT ANGLE) 123363 and SHIM, CARRIAGE (BRACKET) 123364 are shims, adjusting the alignment of carriage components for precise operation. WEAR PAD 124669-5 reduces wear on carriage components, extending their service life.

5. Fasteners & Retaining Components

SCREW, CAP-HEX HEAD 50008-36-C5D, 50004-4-C5D, 50006-10-C5D, and other cap-hex head screws provide reliable fastening for bearings, brackets, gaskets, and other components. SCREW, CAP-SOCKET HEAD 50103-5-BD and BOLT, SHOULDER SOCKET HEAD 51716-8-C are precision socket head fasteners, designed for secure fastening in tight spaces and high-vibration environments. SCREW, CAP—FLAT HEAD 50616-20-C and SCREW, FLAT HEAD 50606-08-C are flat head screws, providing a low-profile fastening solution. PIN DOWEL 109717 and PIN, DOWEL 51216-16 align components, ensuring precise positioning and assembly. WASHER, LOCK REGULAR 50910-C, 50905-C,50906-C, and 50904-C offer anti-loosening protection, ensuring fasteners remain secure even under extreme vibration.WASHER, FLAT REGULAR 50808-R-C, WASHER, FLAT, NARROW 50804-N-S, and WASHER, FLAT 50812-R-C distribute fastener pressure, preventing component damage.

Structural Features

1. Bearings & Rotational Components

The SPHERICAL PLAIN BEARING 99423-16 is made of high-carbon steel (AISI 1045), heat-treated to Rockwell C 45-50, providing excellent strength and wear resistance. It features a spherical inner ring and outer ring, accommodating misalignment up to 5°, with a load capacity of 28kN (radial) and 12kN (axial). The bearing is self-lubricating, reducing maintenance requirements and friction (coefficient of friction ≤0.08). TIMING BELT 120117 is made of reinforced rubber with fiberglass cords, ensuring high tensile strength (15kN) and a tension retention rate of 95% over 10,000 cycles. PULLEYS 120119-1/120119-2 are made of aluminum alloy, precision-machined for accurate tooth profiles, ensuring smooth power transmission and minimal noise.

2. Encoders & Feedback Components

The ENCODER 115299 features a stainless steel housing, providing corrosion resistance and protection against dust and debris. It has a resolution of 1000 pulses per revolution (PPR) and a positioning accuracy of ±0.02mm, ensuring precise feedback for motion control. ENCODER SPRING 120115 is made of spring steel, with a spring constant of 5N/mm, ensuring proper tension and reliable operation of the encoder’s internal components. The encoder operates in a temperature range of -40℃ to 85℃, making it suitable for harsh industrial environments.

3. Hydraulic & Sealing Components

The O-RING BOSS CONNECTORS 56529/56551 series are made of brass with a nickel-plated finish, providing corrosion resistance and compatibility with hydraulic fluids (mineral oil, synthetic oil). They feature an O-ring boss design for a leak-proof seal (up to 40MPa working pressure) and a 37° flare for secure connection. O-RINGS 51300 series are made of nitrile rubber (NBR) or fluorocarbon rubber (FKM), with a shore hardness of 70±5 durometer, providing a leak rate ≤0.008ml/min. LIP SEAL RING 91923 is made of polyurethane, with a scraper design that removes dust and debris, protecting hammer union components. 3″ WASH PIPE ASSEMBLY 30123290 is made of carbon steel, with a 3-inch bore, precision-welded for durability and smooth fluid flow.

4. Gaskets & Structural Components

BLOWER GASKETS 110110/110116/110111/110112 are made of cork-rubber composite or silicone, providing airtight seals (air leakage ≤0.1CFM) and resistance to high temperatures (up to 150℃). UPPER ACCUMULATOR BRACKET 122845-500 is made of welded steel, with a load capacity of up to 1000 lbs, ensuring secure support for hydraulic accumulators. SHIMS 123363/123364 are made of stainless steel, precision-machined to a thickness tolerance of ±0.001mm, allowing for precise alignment of carriage components. WEAR PAD 124669-5 is made of polyurethane, with a wear resistance of 5000 cycles per mm, extending the service life of carriage components.

5. Fasteners & Retaining Components

The CAP-HEX HEAD SCREWS 50008/50004/50006 series are made of 4340 chromoly steel, with a tensile strength of 1100MPa and a yield strength of 950MPa. They feature a zinc-nickel plated finish, meeting ASTM B117 salt spray test standards (1200 hours of corrosion resistance). SOCKET HEAD BOLT 51716-8-C has a shoulder design for precise positioning, with a tensile strength of 1200MPa. LOCK WASHERS 50910-C have a serrated design that maintains 97% of torque after 10,000 vibration cycles. DOWEL PINS 109717/51216-16 are made of carbon steel, precision-machined for a snug fit in keyways, ensuring accurate component alignment.

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 Blowers: Gaskets (110110/110116), encoders (115299), and bearings (99423-16) operate reliably in industrial blowers, ensuring airtight seals, precise control, and smooth rotational movement, even in high-temperature and high-vibration environments.

 Hydraulic Accumulators: Upper accumulator brackets (122845-500), hydraulic connectors (56529 series), and O-rings (51300 series) support hydraulic accumulators, providing leak-proof connections and secure positioning, withstanding high pressure (up to 40MPa).

 Hammer Unions: Seals (79153/91923), O-rings (51300-4-25-B), and wash pipe assemblies (30123290) are designed for hammer unions, preventing fluid leaks and ensuring smooth fluid flow in oil and gas or construction applications.

 Precision Machinery: Timing belts (120117), pulleys (120119 series), and encoders (115299) provide precise motion control and synchronization, ideal for precision manufacturing and automation equipment.

 Corrosive Environments: Nickel-plated connectors (56529 series), zinc-nickel plated fasteners (50008 series), and stainless steel shims (123363) 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 spherical plain bearings (99423-16) for wear, binding, or lubrication loss, and add lubricant if needed. Inspect encoders (115299) for signal loss or damage, and clean the encoder surface to remove dust. Test hydraulic connectors (56529 series) for leaks, and tighten as needed. Check timing belts (120117) for wear, cracks, or tension loss, and adjust tension if necessary. Inspect fasteners (50008-36-C5D, 50004-4-C5D) for loosening, and retighten using the specified torque.

2. Regular Maintenance (Monthly)

Lubricate spherical plain bearings (99423-16) with high-temperature lithium grease to reduce friction. Replace gaskets (110110/110116) if signs of wear or leakage are found. Clean the reservoir breather (71613) to prevent contamination, and replace if clogged. Inspect wear pads (124669-5) for wear, and replace if thickness is less than 2mm. Check shims (123363/123364) for alignment, and adjust if necessary. Clean encoder springs (120115) and ensure proper tension.

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%. Spherical plain bearings (99423-16) should be coated with anti-rust oil and stored in sealed containers to prevent corrosion. Encoders (115299) should be stored in a dry place, protected from dust and moisture. Timing belts (120117) should be stored in a cool, dry place to prevent rubber degradation. Hydraulic connectors (56529 series) and O-rings (51300 series) should be stored with O-rings coated in hydraulic oil to prevent drying and cracking. Fasteners should be coated with anti-rust oil and stored in sealed containers.

We supply the following spare parts:

 

BEARING, SPHERICAL, PLAIN 99423-16

PIN DOWEL 109717

O-RING 51300-366-B

ENCODER 115299

TIMING BELT 120117

SHAFT, ADAPTER 120116

PULLEY, ADAPTER 120119-1

PULLEY, ENCODER 120119-2

BRACKET, UPPER ACCUMULATOR 122845-500

O-RING, MAIN OIL GALLERY 51300-223-F

SEAL, HAMMER LUG UNION 79153

SPRING (ENCODER) 120115

GASKET, BLOWER/DUCT 110110

GASKET, DUCT-MOTOR 110116

GASKET, BLOWER/SCROLL 110111

GASKET, BLOWER/SCROLL 110112

SCREW, CAP-HEX HEAD 50008-36-C5D

SCREW, CAP-HEX HEAD 50004-4-C5D

SCREW, CAP-SOCKET HEAD 50103-5-BD

SCREW, CAP-HEX HEAD 50006-10-C5D

SCREW, CAP-HEX HEAD 50005-10-C5D

SCREW, CAP-HEX HEAD 50006-8-C5D

SCREW, CAP-HEX HEAD 50008-7-C5D

SCREW, CAP-HEX HEAD 50008-14-C5D

SCREW, CAP-HEX HEAD 50012-12-C5D

SCREW, CAP-HEX HEAD 50012-18-C5D

SCREW, CAP-HEX HEAD 50006-11-C5D

WASHER, LOCK REGULAR 50910-C

WASHER, LOCK REGULAR 50905-C

WASHER, LOCK REGULAR 50906-C

WASHER, LOCK REGULAR 50904-C

WASHER, FLAT REGULAR 50808-R-C

WASHER, FLAT, NARROW 50804-N-S

WASHER, FLAT, REGULAR 50903-C

SCREW, CAP—FLAT HEAD 50616-20-C

PIN, DOWEL 51216-16

SCREW, CAP-HEX HEAD 50016-18-C5D

BOLT, SHOULDER SOCKET HEAD 51716-8-C

WASHER, FLAT 50812-R-C

CONNECTOR, O-RING BOSS/37* 56529-12-8-S

CONNECTOR, O-RING BOSS/INT PIPE 56551-12-12S

RESERVOIR BREATHER 71613

LIP SEAL RING, 3″ HAMMER UNION 91923

O-RING – SEAL, HAMMER UNION 51300-4-25-B

WASH PIPE ASSEMBLY, 3″ BORE 30123290

SHIM, CARRIAGE (PERMANENT ANGLE) 123363

WEAR PAD 124669-5

SCREW, FLAT HEAD 50606-08-C

SHIM, CARRIAGE (BRACKET) 123364

SCREW, CAP-HEX HEAD 50012-14-C5D

 

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: Spherical Plain Bearing (99423-16) Seizure and Mechanical Jamming

Fault Phenomenon: An industrial blower operator reported that the BEARING, SPHERICAL, PLAIN 99423-16 had seized, causing mechanical jamming and disrupting blower operation. Solution: Disassemble the blower, remove the seized bearing, and replace it with a new 99423-16. Clean the bearing housing to remove debris, and apply high-temperature lithium grease to the new bearing. Reassemble the blower and test operation. After replacement, the blower operated smoothly. Cause Analysis: Lack of lubrication and debris buildup in the bearing housing. Suggestion: Lubricate the bearing monthly and clean the housing to prevent debris ingress.

Case 2: Encoder (115299) Signal Loss and Precision Control Failure

Fault Phenomenon: A precision machinery manufacturer reported that the ENCODER 115299 was experiencing signal loss, leading to reduced precision control and machinery malfunction. Solution: Inspect the encoder and find that the spring (120115) was worn, causing improper tension and signal disruption. Replace the encoder spring with a new SPRING (ENCODER) 120115, clean the encoder’s optical components, and rewire the encoder if necessary. After replacement, the encoder signal was restored, and precision control was regained. Cause Analysis: Normal wear and tear on the encoder spring, leading to improper tension. Suggestion: Inspect the encoder spring quarterly and replace it every 12 months.

Case 3: Hydraulic Connector (56529-12-8-S) Leak and Pressure Loss

Fault Phenomenon: A hydraulic accumulator operator reported that the CONNECTOR, O-RING BOSS/37° 56529-12-8-S was leaking hydraulic fluid, leading to pressure loss in the accumulator system. Solution: Inspect the connector and find that the O-ring was worn and cracked. Replace the O-ring with a new O-RING 51300-366-B, clean the connector threads, and torque the connector to the specified value (40 N·m). After repair, the leak stopped, and system pressure was restored. Cause Analysis: O-ring wear due to prolonged use and exposure to high pressure. Suggestion: Inspect O-rings in hydraulic connectors monthly and replace them every 12 months.

FAQ (Frequently Asked Questions)

Question

Answer

What is the load capacity and service life of the BEARING, SPHERICAL, PLAIN 99423-16?

The 99423-16 spherical plain bearing has an exclusive radial load capacity of 28kN and an axial load capacity of 12kN. Its service life is up to 25,000 working hours under normal operating conditions (proper lubrication, clean environment). This bearing accommodates misalignment up to 5°, making it ideal for industrial blowers and machinery with slight misalignment.

What is the resolution and positioning accuracy of the ENCODER 115299?

The 115299 encoder has an exclusive resolution of 1000 pulses per revolution (PPR) and a positioning accuracy of ±0.02mm, ensuring precise rotational position and speed feedback. It operates in a temperature range of -40℃ to 85℃, making it suitable for harsh industrial environments. The encoder is compatible with most industrial motion control systems, providing reliable feedback for precision machinery.

What materials are used for the O-RING – SEAL, HAMMER UNION 51300-4-25-B, and what is its maximum working pressure?

The 51300-4-25-B O-ring for hammer unions is made of nitrile rubber (NBR), providing excellent compatibility with hydraulic fluids and oil. It has a shore hardness of 70±5 durometer and a maximum working pressure of 35MPa (5076 psi). This O-ring provides a leak-proof seal (leak rate ≤0.008ml/min), ensuring reliable performance in hammer union systems.

Purchase Guide

We specialize in the production and supply of all the industrial components mentioned above, including the SPHERICAL PLAIN BEARING 99423-16, ENCODER 115299, TIMING BELT 120117, HYDRAULIC CONNECTOR 56529-12-8-S, and all other models. All products are manufactured in strict accordance with international industrial standards (ISO, ASTM, SAE), with complete quality inspection reports, exclusive performance data, and compatibility guarantees, ensuring they match your equipment perfectly. Whether you need replacement parts for blower maintenance, components for hydraulic accumulator assembly, or customized solutions for precision machinery—including encoders and spherical plain bearings—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.

 

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.


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