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The High Quality Steel Bushing for Mini Loader is a precision-engineered wear component designed to ensure stable and smooth pivot motion in compact and small wheel loaders.
Manufactured from 45# carbon steel (C45 / AISI 1045), this bushing delivers excellent strength, machinability, and cost-effectiveness, making it ideal for light to medium-duty applications.
Each bushing is produced through turning, heat treatment, and precision grinding, resulting in high dimensional accuracy and smooth surface finish for perfect fitment with pins and housings.
The material’s balanced toughness and wear resistance help minimize maintenance frequency while maintaining reliable performance under repetitive movement and moderate loads.
Custom dimensions, tolerances, and surface treatments are available to match various mini loader brands and models.
Premium 45# Carbon Steel (C45 / AISI 1045) — Excellent mechanical strength and good wear resistance for small loader applications.
Compact & Lightweight Design — Ideal for mini and compact loaders with limited installation space.
Precision Machined Finish — Maintains accurate fit and alignment with loader pins for smooth joint movement.
Customizable Options — Support for tailor-made sizes, tolerances, and coating types (phosphating, nickel plating, or oil coating).
Economical & Reliable Choice — Balances durability, ease of machining, and cost efficiency, perfect for OEM and aftermarket use.
| Option Type | Available Choices | Description |
|---|---|---|
| Material | 45# (C45 / AISI1045) | Standard high-strength carbon steel for mini loaders |
| Surface Treatment | Phosphating / Nickel / Oil Coating | Improves corrosion and wear resistance |
| Size | Customizable (Typical 30–90 mm OD range) | Suitable for mini loader joints |
| Tolerance | ±0.02 mm | Ensures accurate press-fit and alignment |
| OEM Branding | Available | Laser engraving or logo marking upon request |
This bushing is widely used in mini and compact loaders, skid steer loaders, and small articulated wheel loaders, providing reliable support for:
Bucket and link joints — Reduces friction between moving parts
Boom pivot points — Ensures stable lifting and lowering motion
Cylinder ends and hinge joints — Absorbs vibration and maintains joint alignment
Its compact yet durable design helps enhance machine efficiency and prolong service life of pins and structures.
| Parameter | Specification |
|---|---|
| Product Name | High Quality Steel Bushing for Mini Loader |
| Material | 45# Steel (C45 / AISI 1045) |
| Hardness | HRC 20–30 (after quenching and tempering) |
| Size Range | Customizable (Typical OD 30–90 mm) |
| Tolerance | ±0.02 mm |
| Surface Treatment | Phosphate / Nickel / Oil coating |
| Application | Bucket, boom, and linkage joints for mini loaders |
| Type | Press-fit, replaceable wear sleeve |
| Packaging | Rust-proof film + wooden case or carton |
1. Why choose 45# steel for mini loader bushings?
45# steel (C45/AISI1045) offers excellent machinability and moderate hardness, making it ideal for mini loaders that require good strength at a reasonable cost.
2. Can the bushing size be customized for my loader brand?
Yes. We support fully customized sizes based on your loader model or technical drawings. Simply provide dimensions or samples, and we’ll manufacture exact-fit bushings.
3. What surface treatment is recommended for outdoor or humid conditions?
For humid or coastal environments, nickel plating provides superior corrosion protection. For normal conditions, phosphating or oil coating is sufficient.
4. How should the bushing be installed?
It should be press-fitted into the housing bore with proper alignment. Always ensure oil holes match lubrication points for optimal performance.
5. What is the typical lead time for custom orders?
Lead time ranges from 15–20 days depending on quantity and customization level. Express production is available for urgent maintenance needs.
The High Quality Steel Bushing for Mini Loader is a precision-engineered wear component designed to ensure stable and smooth pivot motion in compact and small wheel loaders.
Manufactured from 45# carbon steel (C45 / AISI 1045), this bushing delivers excellent strength, machinability, and cost-effectiveness, making it ideal for light to medium-duty applications.
Each bushing is produced through turning, heat treatment, and precision grinding, resulting in high dimensional accuracy and smooth surface finish for perfect fitment with pins and housings.
The material’s balanced toughness and wear resistance help minimize maintenance frequency while maintaining reliable performance under repetitive movement and moderate loads.
Custom dimensions, tolerances, and surface treatments are available to match various mini loader brands and models.
Premium 45# Carbon Steel (C45 / AISI 1045) — Excellent mechanical strength and good wear resistance for small loader applications.
Compact & Lightweight Design — Ideal for mini and compact loaders with limited installation space.
Precision Machined Finish — Maintains accurate fit and alignment with loader pins for smooth joint movement.
Customizable Options — Support for tailor-made sizes, tolerances, and coating types (phosphating, nickel plating, or oil coating).
Economical & Reliable Choice — Balances durability, ease of machining, and cost efficiency, perfect for OEM and aftermarket use.
| Option Type | Available Choices | Description |
|---|---|---|
| Material | 45# (C45 / AISI1045) | Standard high-strength carbon steel for mini loaders |
| Surface Treatment | Phosphating / Nickel / Oil Coating | Improves corrosion and wear resistance |
| Size | Customizable (Typical 30–90 mm OD range) | Suitable for mini loader joints |
| Tolerance | ±0.02 mm | Ensures accurate press-fit and alignment |
| OEM Branding | Available | Laser engraving or logo marking upon request |
This bushing is widely used in mini and compact loaders, skid steer loaders, and small articulated wheel loaders, providing reliable support for:
Bucket and link joints — Reduces friction between moving parts
Boom pivot points — Ensures stable lifting and lowering motion
Cylinder ends and hinge joints — Absorbs vibration and maintains joint alignment
Its compact yet durable design helps enhance machine efficiency and prolong service life of pins and structures.
| Parameter | Specification |
|---|---|
| Product Name | High Quality Steel Bushing for Mini Loader |
| Material | 45# Steel (C45 / AISI 1045) |
| Hardness | HRC 20–30 (after quenching and tempering) |
| Size Range | Customizable (Typical OD 30–90 mm) |
| Tolerance | ±0.02 mm |
| Surface Treatment | Phosphate / Nickel / Oil coating |
| Application | Bucket, boom, and linkage joints for mini loaders |
| Type | Press-fit, replaceable wear sleeve |
| Packaging | Rust-proof film + wooden case or carton |
1. Why choose 45# steel for mini loader bushings?
45# steel (C45/AISI1045) offers excellent machinability and moderate hardness, making it ideal for mini loaders that require good strength at a reasonable cost.
2. Can the bushing size be customized for my loader brand?
Yes. We support fully customized sizes based on your loader model or technical drawings. Simply provide dimensions or samples, and we’ll manufacture exact-fit bushings.
3. What surface treatment is recommended for outdoor or humid conditions?
For humid or coastal environments, nickel plating provides superior corrosion protection. For normal conditions, phosphating or oil coating is sufficient.
4. How should the bushing be installed?
It should be press-fitted into the housing bore with proper alignment. Always ensure oil holes match lubrication points for optimal performance.
5. What is the typical lead time for custom orders?
Lead time ranges from 15–20 days depending on quantity and customization level. Express production is available for urgent maintenance needs.
| Pins | ||||
| Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm |
| 40*100 | 51*110 | 60*175 | 80*740 | 100*630 |
| 40*281 | 50*225 | 60*600 | 80*590 | 110*400 |
| 40*406 | 50*360 | 63*680 | 85*230 | 120*405 |
| 40*1290 | 50*445 | 65*150 | 85*850 | 125*480 |
| 45*100 | 50*524 | 65*490 | 88*210 | 127*276 |
| 45*100 | 51*255 | 70*238 | 90*280 | 150*1251 |
| 45*210 | 52*262 | 70*690 | 90*840 | 130*760 |
| 45*330 | 55*180 | 75*530 | 95*240 | 145*410 |
| 45*450 | 55*460 | 76*218 | 95*350 | 158*932 |
| 45*548 | 57*191 | 79*614 | 100*275 | 160*258 |
| The sizes above are just for reference, we can't list all sizes here. We can supply more products as your requirements. Please feel free to send us your inquiry. | ||||
| Bushings | ||||
| Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm |
| 30*35*290 | 50*60*80 | 70*90*90 | 100*110*49 | 130*200*70 |
| 30*38*190 | 50*64*70 | 75*90*150 | 100*140*100 | 130*180*76 |
| 30*40*50 | 55*60*310 | 76*90*81 | 100*175*120 | 140*155*89 |
| 30*60*193 | 55*65*60 | 80*100*110 | 110*125*130 | 140*164*160 |
| 35*45*287 | 55*70*80 | 80*140*90 | 110*140*140 | 140*180*355 |
| 40*45*185 | 60*70*40 | 80*95*80 | 120*135*100 | 165*184*183 |
| 40*50*30 | 60*70*85 | 85*110*110 | 120*140*210 | 170*195*158 |
| 40*80*233 | 60*75*90 | 90*104*180 | 120*150*221 | 180*240*115 |
| 45*55*40 | 70*80*85 | 90*160*120 | 120*180*540 | 190*140*544 |
| 50*55*385 | 70*85*130 | 95*110*120 | 127*146*140 | 220*240*415 |
| The sizes above are just for reference, we can't list all sizes here. We can supply more products as your requirements. Please feel free to send us your inquiry. | ||||
Excavator bushing
Excavator pin
Loader bushing
Loader pin
Construction machinery pins and bushings
>> Partial Applicable Vehicle Model Display
| CAT | CAT301.7 CR | CAT313 GC | CAT323 GX | CAT333 |
| CAT301.4 CR | CAT312 GC | CAT323 | CAT374 | |
| CAT302 CR | CAT326 GC | CAT316 GC | CAT395 | |
| CAT303 CR | CAT326 | CAT 318D2L | CAT352 | |
| CAT305.5 | CAT320 GX | CAT330 | CAT355 | |
| CAT306.5 | CAT320 GC | CAT336 | CAT330 GC | |
| CAT307.5 | CAT320 | CAT350 | ||
| CAT307 | CAT323 GC | CAT340 | ||
| KOMATSU | PC100-3/5/6 | PC200-2/3/5/6/7/8 | PC270-6/7/8 | PC360-7 |
| PC120-2/3/5/6 | PC220-2/3/5/6/7/8 | PC290-10/11 | PC360LC-10/11 | |
| PC130-6/8/11 | PC228-1/2/3/8/10/11 | PC300LC-1/2/3/5/6/7/8 | PC390LC-10/11 | |
| PC150-1/3/5/6 | PC240-6/8/10/11 | PC350-8 | ||
| PC160-6/7/8 | PC250-6 | PC350LC-6/8/10/11 | ||
| SANY | SY135C | SY75C | SY245H-S | SY415H-S |
| SY200C-S | SY335BH-S | SY95C | SY375IDS | |
| SY205C-S | SY275H | SY485H-S | SY550H | |
| SY215E | SY235H-S | SY485GLC-S | ||
| SY215C-S | SY155H | SY305H-S | ||
| KOBELCO | SK210LC-10 | SK200-10 | SK60-8 | SK140LC-8 |
| SK130-11 | SK250-10 | SK380XD-10 | SK460-8 | |
| SK75-11 | SK260LC-10 | SK220XD-10 | ||
| SK350LC-10 | SK330-10 | SK150LC-11 | ||
| Hitachi | ZX130-6A | ZX260K-6A | ZX210LC-5A | ZX490LCH-5A |
| ZX240-5A | ZX260LCH-5A | ZX350-6A Pro | ZX220K-6A | |
| ZX250-6A | ZX200C-6A | ZX360K-5A | ZX520LCH-6A | |
| ZX250K-5A | ZH200-5A | ZX300-6A | ZX350-6A | |
| ZX250LC-5A | ZX210-6A | ZX300-5A | ZX500LCH-5A | |
| ZX260LC-6A | ZX210K-5A | ZX370K-6A | ZX220LC-6A | |
| ZX195-5A | ZX360H-5A | ZX370H-6A |
| Pins | ||||
| Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm |
| 40*100 | 51*110 | 60*175 | 80*740 | 100*630 |
| 40*281 | 50*225 | 60*600 | 80*590 | 110*400 |
| 40*406 | 50*360 | 63*680 | 85*230 | 120*405 |
| 40*1290 | 50*445 | 65*150 | 85*850 | 125*480 |
| 45*100 | 50*524 | 65*490 | 88*210 | 127*276 |
| 45*100 | 51*255 | 70*238 | 90*280 | 150*1251 |
| 45*210 | 52*262 | 70*690 | 90*840 | 130*760 |
| 45*330 | 55*180 | 75*530 | 95*240 | 145*410 |
| 45*450 | 55*460 | 76*218 | 95*350 | 158*932 |
| 45*548 | 57*191 | 79*614 | 100*275 | 160*258 |
| The sizes above are just for reference, we can't list all sizes here. We can supply more products as your requirements. Please feel free to send us your inquiry. | ||||
| Bushings | ||||
| Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm | Size (Diameter*Height) mm |
| 30*35*290 | 50*60*80 | 70*90*90 | 100*110*49 | 130*200*70 |
| 30*38*190 | 50*64*70 | 75*90*150 | 100*140*100 | 130*180*76 |
| 30*40*50 | 55*60*310 | 76*90*81 | 100*175*120 | 140*155*89 |
| 30*60*193 | 55*65*60 | 80*100*110 | 110*125*130 | 140*164*160 |
| 35*45*287 | 55*70*80 | 80*140*90 | 110*140*140 | 140*180*355 |
| 40*45*185 | 60*70*40 | 80*95*80 | 120*135*100 | 165*184*183 |
| 40*50*30 | 60*70*85 | 85*110*110 | 120*140*210 | 170*195*158 |
| 40*80*233 | 60*75*90 | 90*104*180 | 120*150*221 | 180*240*115 |
| 45*55*40 | 70*80*85 | 90*160*120 | 120*180*540 | 190*140*544 |
| 50*55*385 | 70*85*130 | 95*110*120 | 127*146*140 | 220*240*415 |
| The sizes above are just for reference, we can't list all sizes here. We can supply more products as your requirements. Please feel free to send us your inquiry. | ||||
Excavator bushing
Excavator pin
Loader bushing
Loader pin
Construction machinery pins and bushings
>> Partial Applicable Vehicle Model Display
| CAT | CAT301.7 CR | CAT313 GC | CAT323 GX | CAT333 |
| CAT301.4 CR | CAT312 GC | CAT323 | CAT374 | |
| CAT302 CR | CAT326 GC | CAT316 GC | CAT395 | |
| CAT303 CR | CAT326 | CAT 318D2L | CAT352 | |
| CAT305.5 | CAT320 GX | CAT330 | CAT355 | |
| CAT306.5 | CAT320 GC | CAT336 | CAT330 GC | |
| CAT307.5 | CAT320 | CAT350 | ||
| CAT307 | CAT323 GC | CAT340 | ||
| KOMATSU | PC100-3/5/6 | PC200-2/3/5/6/7/8 | PC270-6/7/8 | PC360-7 |
| PC120-2/3/5/6 | PC220-2/3/5/6/7/8 | PC290-10/11 | PC360LC-10/11 | |
| PC130-6/8/11 | PC228-1/2/3/8/10/11 | PC300LC-1/2/3/5/6/7/8 | PC390LC-10/11 | |
| PC150-1/3/5/6 | PC240-6/8/10/11 | PC350-8 | ||
| PC160-6/7/8 | PC250-6 | PC350LC-6/8/10/11 | ||
| SANY | SY135C | SY75C | SY245H-S | SY415H-S |
| SY200C-S | SY335BH-S | SY95C | SY375IDS | |
| SY205C-S | SY275H | SY485H-S | SY550H | |
| SY215E | SY235H-S | SY485GLC-S | ||
| SY215C-S | SY155H | SY305H-S | ||
| KOBELCO | SK210LC-10 | SK200-10 | SK60-8 | SK140LC-8 |
| SK130-11 | SK250-10 | SK380XD-10 | SK460-8 | |
| SK75-11 | SK260LC-10 | SK220XD-10 | ||
| SK350LC-10 | SK330-10 | SK150LC-11 | ||
| Hitachi | ZX130-6A | ZX260K-6A | ZX210LC-5A | ZX490LCH-5A |
| ZX240-5A | ZX260LCH-5A | ZX350-6A Pro | ZX220K-6A | |
| ZX250-6A | ZX200C-6A | ZX360K-5A | ZX520LCH-6A | |
| ZX250K-5A | ZH200-5A | ZX300-6A | ZX350-6A | |
| ZX250LC-5A | ZX210-6A | ZX300-5A | ZX500LCH-5A | |
| ZX260LC-6A | ZX210K-5A | ZX370K-6A | ZX220LC-6A | |
| ZX195-5A | ZX360H-5A | ZX370H-6A |
Alloy steel:
Composition: It contains various alloying elements such as chromium (Cr), nickel (Ni), molybdenum (Mo), and manganese (Mn) in addition to the basic iron and carbon.
Properties: Alloy steel has high strength, excellent wear resistance, and good toughness. The addition of alloying elements improves its hardenability, allowing it to maintain high hardness and strength even after heat treatment. It also has better resistance to deformation under high - load conditions.
Application: It is widely used in the manufacture of loader bucket bushings that require high strength and wear resistance, especially in harsh working environments or when dealing with heavy - duty operations.
Carbon steel:
Composition: Mainly composed of iron and carbon, with a carbon content ranging from 0.12% to 2.0%. According to the carbon content, it can be divided into low - carbon steel, medium - carbon steel, and high - carbon steel.
Properties: Low - carbon steel has good plasticity and weldability but relatively low strength and hardness. Medium - carbon steel has a balance of strength, hardness, and toughness. High - carbon steel has high hardness and strength but lower plasticity and toughness.
Application: Medium - carbon steel is commonly used for loader bucket bushings in some general - purpose loaders due to its good comprehensive properties and relatively low cost. High - carbon steel may be used in specific applications where extremely high hardness and wear resistance are required.


Alloy steel:
Composition: It contains various alloying elements such as chromium (Cr), nickel (Ni), molybdenum (Mo), and manganese (Mn) in addition to the basic iron and carbon.
Properties: Alloy steel has high strength, excellent wear resistance, and good toughness. The addition of alloying elements improves its hardenability, allowing it to maintain high hardness and strength even after heat treatment. It also has better resistance to deformation under high - load conditions.
Application: It is widely used in the manufacture of loader bucket bushings that require high strength and wear resistance, especially in harsh working environments or when dealing with heavy - duty operations.
Carbon steel:
Composition: Mainly composed of iron and carbon, with a carbon content ranging from 0.12% to 2.0%. According to the carbon content, it can be divided into low - carbon steel, medium - carbon steel, and high - carbon steel.
Properties: Low - carbon steel has good plasticity and weldability but relatively low strength and hardness. Medium - carbon steel has a balance of strength, hardness, and toughness. High - carbon steel has high hardness and strength but lower plasticity and toughness.
Application: Medium - carbon steel is commonly used for loader bucket bushings in some general - purpose loaders due to its good comprehensive properties and relatively low cost. High - carbon steel may be used in specific applications where extremely high hardness and wear resistance are required.




Q1: What is the typical application for the High Quality Excavator Bucket Cylinder Upper Pin Shaft?
A1: This pin shaft is specifically designed for excavator bucket cylinders, suitable for high-demand tasks in construction, mining, and heavy machinery operations.
Q2: Can you customize the pin shaft for other machine models?
A2: Yes, we offer full customization services for pin shafts based on your specifications, ensuring compatibility with a wide range of machinery models.
Q3: How do you ensure the durability of your excavator pin shafts?
A3: We use advanced heat treatment processes and high-quality materials to enhance the hardness and wear resistance of the pin shafts, ensuring long-lasting performance.
Q4: What materials are used for manufacturing the pin shaft?
A4: Our pin shafts are made from premium alloys such as 45C, 42CrMo4, and 41Cr4, selected for their durability and ability to withstand heavy-duty use.
Q5: Do you provide after-sales support for your excavator pin shafts?
A5: Yes, we provide comprehensive after-sales support, including product guidance, warranty services, and troubleshooting assistance to ensure continued operation.
Q6: How do I place a custom order for the pin shaft?
A6: Simply provide us with your design drawings or specifications, and we’ll create a customized pin shaft tailored to your exact requirements.
Q7: Can you ship to international locations?
A7: Yes, we can deliver our high-quality excavator pin shafts worldwide, offering efficient shipping and timely delivery to your location.
Q8: Are your pin shafts compatible with other excavator brands?
A8: Our pin shafts are designed for a wide range of excavators, including those from Sany Heavy Industry, but we can also customize them for other brands as needed.


Q1: What is the typical application for the High Quality Excavator Bucket Cylinder Upper Pin Shaft?
A1: This pin shaft is specifically designed for excavator bucket cylinders, suitable for high-demand tasks in construction, mining, and heavy machinery operations.
Q2: Can you customize the pin shaft for other machine models?
A2: Yes, we offer full customization services for pin shafts based on your specifications, ensuring compatibility with a wide range of machinery models.
Q3: How do you ensure the durability of your excavator pin shafts?
A3: We use advanced heat treatment processes and high-quality materials to enhance the hardness and wear resistance of the pin shafts, ensuring long-lasting performance.
Q4: What materials are used for manufacturing the pin shaft?
A4: Our pin shafts are made from premium alloys such as 45C, 42CrMo4, and 41Cr4, selected for their durability and ability to withstand heavy-duty use.
Q5: Do you provide after-sales support for your excavator pin shafts?
A5: Yes, we provide comprehensive after-sales support, including product guidance, warranty services, and troubleshooting assistance to ensure continued operation.
Q6: How do I place a custom order for the pin shaft?
A6: Simply provide us with your design drawings or specifications, and we’ll create a customized pin shaft tailored to your exact requirements.
Q7: Can you ship to international locations?
A7: Yes, we can deliver our high-quality excavator pin shafts worldwide, offering efficient shipping and timely delivery to your location.
Q8: Are your pin shafts compatible with other excavator brands?
A8: Our pin shafts are designed for a wide range of excavators, including those from Sany Heavy Industry, but we can also customize them for other brands as needed.





