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China Custom Dowel Bearing Cap with Threaded Stainless Steel Railing Accessories Connectors
CUSTOM
Discover durable bearing caps for engine and machinery protection. Precision components ensure smooth operation and extended service life. Request a quote today.
minimum order
1 piece
Quantity
$0.18 - $3.98
/ piece
Discover durable bearing caps for engine and machinery protection. Precision components ensure smooth operation and extended service life. Request a quote today.
| Key Attributes | |
| Machining Capabilities | CNC Machining Processes:Broaching, Drilling, Etching/Chemical Machining, Laser Machining, Milling, Turning, Wire EDM, Rapid Prototyping |
| Materials Supported | Aluminum, Brass, Bronze, Copper, Hardened Metals, Stainless Steel, Steel Alloys, Plastic |
| Micro-Machining or Not | Micro Machining |
| Key Processes | CNC Milling, Turning, Drilling |
| Tolerance Standards | Industry-standard precision |
| Surface Treatments | Anodizing, Plasting, Polishing, etc. |
| Applications | Control Systems, Automotive Components |
| Place of Origin | Guangdong, China |
| Model Number | CUSTOM |
| Service Type | Customized OEM/ODM Manufacturing |
| Drawing Formats | PDF, CAD, IGES, STEP |
| Delivery Time | 7-30 Days |
| MOQ | 10 pcs |
· Product Overview
These precision-engineered bearing caps are specialized components designed to secure, protect, and lubricate bearings in mechanical systems. Crafted from 304 stainless steel (food-safe, corrosion-resistant), they feature an externally threaded top (for tool-free installation), an internal bore (to fit bearing outer races), and integrated side slots (to enable lubricant flow to bearing surfaces). The polished, passivated finish ensures durability in harsh environments, while tight dimensional tolerances guarantee a snug, vibration-resistant fit—making them ideal for both industrial and sanitary equipment applications.
· Core Specifications
- Material: 304 Stainless SteelCorrosion-resistant (48-hour salt spray test passed), food-safe (compliant with FDA 21 CFR 175.300), and non-magnetic; tensile strength ≥515 MPa.
- Manufacturing Standard: ISO 9001-Certified
- Key Processes: CNC Turning (main body + external threads + internal bore) → CNC Milling (side lubrication slots) → Surface Passivation (corrosion protection) → Deburring.
- Standard Parameters:
- Thread Size: M10–M16 (customizable to UNC/UNF standards)
- Internal Bore Diameter: 8–12mm (matches standard bearing outer races)
- Lubrication Slots: 2–3 uniformly spaced slots (optimized for grease/oil flow)
- Dimensional Tolerance: ±0.02mm (ensures tight bearing fit and vibration resistance).
· Application Scenarios
These bearing caps are critical for bearing retention and lubrication in:
- Industrial Machinery: Conveyor system bearings, gearbox bearing assemblies, and textile machine rotating components.
- Food & Beverage Processing Equipment: Sanitary pump bearings (304 SS meets food-contact standards) and packaging machine rotating parts.
- Automotive Components: Engine accessory bearings, transmission bearing mounts, and chassis rotating assemblies.
- Medical & Laboratory Equipment: Sterile centrifuge bearings and diagnostic device rotating components (non-magnetic, corrosion-resistant).
- Marine Equipment: Small vessel pump bearings (resists saltwater corrosion).
· Production Process Introduction
- Raw Material Sourcing: Procure certified 304 stainless steel round bars (traceable to material standards).
- CNC Turning: Machine the main cylindrical body, external installation threads, and internal bore (to match target bearing dimensions).
- CNC Milling: Cut side lubrication slots (uniformly spaced to ensure consistent lubricant distribution to bearings).
- Surface Passivation: Apply a chemical passivation treatment to enhance 304 SS’s natural corrosion resistance.
- Deburring: Remove sharp edges from threads, slots, and bores (ensures safe installation and prevents bearing damage).
- Quality Inspection: Use CMM (Coordinate Measuring Machine) to verify thread/bore dimensions; check slot alignment and surface finish.
· Packaging and Shipping Methods
- Packaging:
- Individual units: Sealed in anti-scratch, moisture-proof plastic bags.
- Bulk orders: Packed in foam-lined partitioned boxes (prevents thread/slot damage) + moisture-absorbing desiccants (protects passivated finish).
- Shipping Options:
- Express Delivery (DHL/FedEx: 3–5 business days for samples).
- Air Freight (7–10 business days for small batches).
- Sea Freight (20–25 business days for bulk orders).All shipments include full tracking and damage insurance.
· Process
· Frequently Asked Questions (FAQ)
- MOQ (Minimum Order Quantity): 500 pieces for standard specifications; 200 pieces for custom designs (with valid technical drawings).
- Lead Time: 7–10 working days (standard production); expedited production (5–7 working days) is available for urgent orders (additional fees apply).
- Customization Capability: We support full customization—adjust thread size (Metric/Imperial), internal bore diameter (to match specific bearings), slot quantity/shape, or upgrade to 316 stainless steel (for extreme corrosion environments) based on your requirements. Our engineering team validates designs for bearing fit and lubrication efficiency.
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