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+86-134-23456823
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Stainless Steel Single-End Threaded Shaft Core
This 303 stainless steel single-ended threaded shaft core is a precision component for industrial automation conveyor rollers and idler pulleys. It features standard coarse threads from M6 to M16, outer diameters (OD) ranging from 6 to 20mm, and various shaft lengths (L) available. Equipped with a hexagonal step and circlip groove, it enables easy, wobble-free installation, offering rust and corrosion resistance suitable for humid and mildly corrosive environments, widely used in automation equipment, conveyor lines, and mechanical systems.
Working principle and selection logic
1. Industrial Automation & Conveyor Line Industry
- As the core support shaft for idler rollers, driven pulleys and guide wheels on belt conveyors.
- Used in automated assembly lines, sorting systems, packaging lines and material handling equipment.
- Ensures stable, low-noise rotation of rollers, reducing friction and improving long-term operational reliability.
2. Food Processing & Beverage Industry
- 303 stainless steel construction offers rust and corrosion resistance, meeting hygiene requirements for food-grade environments.
- Applied to conveyor rollers in food packaging machinery, fruit and vegetable processing equipment, and beverage filling lines.
- Suitable for frequent water washing and humid working conditions.
3. Packaging Machinery & Printing Industry
- Used as shafts for film guide rollers, paper feeding rollers and tension control wheels.
- Provides precise rotation support to prevent deviation during film winding and paper feeding processes.
- Smooth surface avoids scratching packaging materials and printed products.
4. Textile Machinery & Garment Equipment Industry
- Applied as core shafts for fabric guide rollers and tension rollers in looms, knitting machines and garment processing equipment.
- Stainless steel material prevents rust stains on textiles, ensuring product quality.
- Stable rotation ensures smooth fabric transmission without damage.
5. Door, Window & Sliding Track System Industry
- Serves as support shafts for sliding door/window rollers, guide wheels and track positioning components.
- Single-ended thread and hexagonal step design enables easy installation and adjustment.
- Durable and rustproof for long-term frequent opening and closing use.
6.Logistics Sorting & Warehousing Equipment
- Used as idler roller shafts on express sorting conveyors, warehouse storage lines and parcel handling systems.
- High load-bearing performance suitable for heavy-duty, continuous conveying operations.
- Reduces roller wear and extends the service life of sorting equipment.
7. Electronic Manufacturing & Precision Automation Industry
- Applied to small conveyor rollers in PCB production lines, electronic assembly equipment and cleanroom automation systems.
- Low-noise, dust-free rotation meets precision workshop requirements.
- Stainless steel material is suitable for clean and low-corrosion environments.
8. Medical & Pharmaceutical Machinery Industry
- Hygienic stainless steel design suitable for conveyor rollers in medical devices and pharmaceutical production lines.
- Easy to clean and disinfect, complying with medical and pharmaceutical hygiene standards.
9. Outdoor & Environmental Protection Machinery
- Waterproof, rainproof and rustproof properties adapt to outdoor working conditions.
- Used as roller shafts in environmental protection conveying equipment, outdoor belt machines and solar tracking systems.
10. Woodworking & Furniture Manufacturing Industry
- Serves as feed roller shafts in woodworking machinery, panel processing equipment and furniture production lines.
- High wear resistance ensures stable operation under heavy material conveying loads.
11. Plastic, Rubber & Chemical Equipment Industry
- Corrosion-resistant structure suitable for use in plastic, rubber and chemical production environments.
- Resists weak acid, weak alkali and corrosive gas conditions.
12. General Industrial Machinery
- Universal application as support shafts for idler rollers, guide wheels and auxiliary rolling components in various mechanical equipment.
- High compatibility and easy installation make it widely used in all types of industrial machinery.
Application scenarios and industries of use
1.Industrial Automation & Conveyor Line Industry
- As the core support shaft for idler rollers, driven pulleys and guide wheels on belt conveyors.
- Used in automated assembly lines, sorting systems, packaging lines and material handling equipment.
- Ensures stable, low-noise rotation of rollers, reducing friction and improving long-term operational reliability.
2.Food Processing & Beverage Industry
- 303 stainless steel construction offers rust and corrosion resistance, meeting hygiene requirements for food-grade environments.
- Applied to conveyor rollers in food packaging machinery, fruit and vegetable processing equipment, and beverage filling lines.
- Suitable for frequent water washing and humid working conditions.
3.Packaging Machinery & Printing Industry
- Used as shafts for film guide rollers, paper feeding rollers and tension control wheels.
- Provides precise rotation support to prevent deviation during film winding and paper feeding processes.
- Smooth surface avoids scratching packaging materials and printed products.
4.Textile Machinery & Garment Equipment Industry
- Applied as core shafts for fabric guide rollers and tension rollers in looms, knitting machines and garment processing equipment.
- Stainless steel material prevents rust stains on textiles, ensuring product quality.
- Stable rotation ensures smooth fabric transmission without damage.
5.Door, Window & Sliding Track System Industry
- Serves as support shafts for sliding door/window rollers, guide wheels and track positioning components.
- Single-ended thread and hexagonal step design enables easy installation and adjustment.
- Durable and rustproof for long-term frequent opening and closing use.
6.Logistics Sorting & Warehousing Equipment
- Used as idler roller shafts on express sorting conveyors, warehouse storage lines and parcel handling systems.
- High load-bearing performance suitable for heavy-duty, continuous conveying operations.
- Reduces roller wear and extends the service life of sorting equipment.
7.Electronic Manufacturing & Precision Automation Industry
- Applied to small conveyor rollers in PCB production lines, electronic assembly equipment and cleanroom automation systems.
- Low-noise, dust-free rotation meets precision workshop requirements.
- Stainless steel material is suitable for clean and low-corrosion environments.
8.Medical & Pharmaceutical Machinery Industry
- Hygienic stainless steel design suitable for conveyor rollers in medical devices and pharmaceutical production lines.
- Easy to clean and disinfect, complying with medical and pharmaceutical hygiene standards.
9.Outdoor & Environmental Protection Machinery
- Waterproof, rainproof and rustproof properties adapt to outdoor working conditions.
- Used as roller shafts in environmental protection conveying equipment, outdoor belt machines and solar tracking systems.
10.Woodworking & Furniture Manufacturing Industry
- Serves as feed roller shafts in woodworking machinery, panel processing equipment and furniture production lines.
- High wear resistance ensures stable operation under heavy material conveying loads.
11.Plastic, Rubber & Chemical Equipment Industry
- Corrosion-resistant structure suitable for use in plastic, rubber and chemical production environments.
- Resists weak acid, weak alkali and corrosive gas conditions.
12.General Industrial Machinery
- Universal application as support shafts for idler rollers, guide wheels and auxiliary rolling components in various mechanical equipment.
- High compatibility and easy installation make it widely used in all types of industrial machinery.
Presentation of Advantages
Dongguan Jiulong Bearing Machinery Co., Ltd. is a professional bearing wholesaler and mechanical supporting solution provider, located in Dongguan, an internationally renowned manufacturing city in Guangdong, China. With convenient transportation links to Hong Kong, Shenzhen and Guangzhou, we are strategically positioned to serve customers across the globe.
Our Brands & Authorized Distributions
We act as an authorized distributor and dealer for a wide range of world-famous and domestic premium bearing brands:
- International Brands: NSK, NTN, IKO, KOYO, ASAHI, EASE, THK, EZO, NMB (Japan); FAG (Germany); TIMKEN (USA); SAMICK (Korea); SNFA (France)
- Domestic Brands: HRB (Harbin), ZWZ (Wafangdian), NXZ (Northwest), LYC (Luoyang), TMB (Tianma), TR (Dongguan)
Our Product Range
We supply a comprehensive selection of bearing types to meet diverse industrial needs:
- Deep Groove Ball Bearings
- Self-Aligning Ball Bearings
- Cylindrical Roller Bearings
- Spherical Roller Bearings
- Needle Roller Bearings
- Tapered Roller Bearings
- Thrust Ball Bearings
- Insert Bearings with Housings
- Rod End Bearings / Spherical Plain Bearings
- Linear Bearings
- Stainless Steel Bearings
- One-Way Bearings
- Custom Non-Standard Bearings (OEM & ODM services available)
Industries We Serve
Our bearings are widely used in the following sectors for both new equipment assembly and maintenance applications:
- Machinery Manufacturing
- Power Generation
- Paper Making
- Electric Motors
- Chemical Fiber & Petrochemicals
- Food & Beverage Processing
- Ceramics Production
- Machine Tools
- Metallurgy
- Power Tools
- Pharmaceuticals
- Precision Instruments
Why Choose Us?
- Genuine & Reliable Products: We maintain large spot inventories for all major brands to ensure fast delivery.
- Full Service Support: From pre-sales consultation to after-sales technical assistance, we provide comprehensive support for every customer.
- Competitive Pricing: Thanks to long-term partnerships with manufacturers, we offer stable and competitive prices.
- Customer-Centric Philosophy: We prioritize honesty, quality and customer satisfaction, aiming to build long-term partnerships with clients worldwide.
Main Technical Parameters
Common Materials Of Bearings
High-carbon chromium bearing steel
Most common bearing material—high hardness, wear and fatigue resistance. Used in motors, cars, and machine tools.
Stainless steel
Corrosion-resistant; ideal for food, medical, or marine applications. 440C for high hardness, 316 for better chemical resistance.
Ceramic materials
Lightweight, heat- and wear-resistant, non-magnetic. Used in aerospace and high-speed precision equipment.
Engineering plastics
Self-lubricating, quiet, and chemically inert. Suitable for light-load or maintenance-free environments like pumps and food machinery.
Faqs
Our shaft core is made of high-quality 303 stainless steel, featuring rustproof, corrosion-resistant and easy-machining performance, suitable for humid and lightly corrosive working conditions.
Yes, 303 stainless steel provides excellent anti-rust and anti-corrosion ability, long service life and stable performance in different industrial environments.
We support full thread specifications from M6 to M20, all standard sizes available and ready for installation.
Yes, we offer full customization on shaft diameter, total length, step size and special shapes, we also accept customization according to customer drawings.
Yes, all standard products are designed with hexagonal step for easy positioning and circlip groove for stable bearing installation.
All products are precision machined with tight tolerance and high concentricity, ensuring smooth rotation, low noise and no shaking during operation.
Widely used in automation equipment, conveyor lines, idler rollers, packaging machinery, food machinery, textile equipment and door and window sliding systems.
Very easy to install. Single-end thread for locking, hexagonal step for positioning, circlip groove for anti-loosening, no extra tools needed.
Standard specifications are in stock for fast shipment. Custom sizes take about 7–10 working days.
Yes, we support OEM, ODM and drawing customization, stable bulk supply and professional foreign trade service provided.
