Self-Lubricating Graphite-Filled Brass Bushings for Cone Crusher Bottom Shell Bushing
Self-Lubricating Graphite-Filled Brass Bushings for Cone Crusher Bottom Shell Bushing
High-Performance Self-Lubricating Bronze Bushing Solutions & Technologies. Minimize downtime, extend service life, and reduce costs for dynamic applications.
VIIPLUS Self-Lubricating Graphite-Filled Brass Bushings for Cone Crusher Bottom Shell Bushing – The Ultimate Maintenance-Free Solution
In the high-load, high-impact environment of cone crushers, the bottom shell bushing (also called the frame bushing or lower shell bushing) plays a mission-critical role. VIIPLUS delivers a game-changing upgrade with our self-lubricating, graphite-filled brass bushings, engineered for extreme durability, zero-grease operation, and outstanding reliability in mining and aggregate crushing.
Comparable standards
Swedish standard SS-EN 1982 CC493K
European standard EN 1982 CC493K
US standard UNS C93200
British standard (old) BS 1400 LG2
German standard (old) DIN 1705 CuSn7ZnPb
Why VIIPLUS Graphite-Plugged Brass Bottom Shell Bushings Lead the Industry
| Feature | VIIPLUS Advantage |
|---|---|
| Base Material | High-strength CuZn25Al5Mn4Fe3 / C86300 manganese bronze or C83600/C93200 |
| Graphite Coverage | 28–35% high-density solid graphite plugs – industry-leading |
| Lubrication | 100% self-lubricating; no grease lines or auto-lube systems required |
| Load Capacity | Handles up to 20 MPa dynamic load – ideal for Symons, Metso HP, Sandvik CH/H series |
| Temperature Range | Performs flawlessly from –40°C to +300°C |
| Service Life | 2–4× longer than traditional greased bronze bushings |
| Plug Retention | Vacuum-impregnated + mechanical anchoring – graphite plugs never dislodge |
Direct Replacement for Major Cone Crusher Brands
VIIPLUS manufactures ready-to-install graphite bronze bottom shell bushings for nearly all major crusher lines:
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Standard Family
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Standard Code
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Material Designation
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Chemical Composition (Main)
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Typical Hardness (HB)
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Common Name / Remarks
|
VIIPLUS Equivalent / Upgrade Grade
|
|---|---|---|---|---|---|---|
|
European
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EN 1982
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CC493K
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CuSn7Zn4Pb7 (Cu 81–85%, Sn 6.5–8.5%, Zn 3–5%, Pb 5–8%)
|
65–80
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Leaded gunmetal – traditional greased bushing material
|
VIIPLUS uses stronger base → CC495K or CuZn25Al5Mn4Fe3 + Graphite
|
|
Swedish
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SS-EN 1982
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CC493K
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Same as EN 1982 CC493K
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65–80
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Identical to European norm
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Upgraded to high-strength manganese bronze + graphite
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USA (ASTM/UNS)
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UNS / ASTM B505, B271
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C93200 (SAE 660)
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CuSn7Zn4Pb7 – same as CC493K
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65–80
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SAE 660 Bearing Bronze – most common in Symons & old Metso
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Direct equivalent, but VIIPLUS offers C93200 + 30% graphite plugs or stronger C95400/C86300 versions
|
|
British (historical)
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BS 1400
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LG2
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CuSn5Zn5Pb5 (very similar to CC491K)
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60–75
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Leaded Gunmetal (LG2) – widely used in older UK-built crushers
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Replaced by stronger VIIPLUS graphite-plugged alloys
|
|
German (historical)
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DIN 1705
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CuSn7ZnPb (Rg7)
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Almost identical to CC493K / C93200
|
65–80
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Rg7 – standard European bearing bronze
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Direct cross, but VIIPLUS standard is higher tensile strength
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VIIPLUS Standard Material for Cone Crusher Bottom Shell Bushings (2025)
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Property
|
VIIPLUS Primary Grade (Recommended)
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Alternative Grade (when exact C93200 match required)
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|---|---|---|
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Base Alloy
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CuZn25Al5Mn4Fe3 (CC762S / CA104)
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C93200 (SAE 660) + graphite
|
|
Equivalent EN 1982
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CC762S / CC764S
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CC493K
|
|
Graphite Content
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28–35% solid plugs
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28–35% solid plugs
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|
Tensile Strength
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≥750 MPa
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≥241 MPa
|
|
Yield Strength
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≥450 MPa
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≥138 MPa
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Hardness
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200–240 HB
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70–90 HB
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Max Load (dynamic)
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20–25 MPa
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8–10 MPa
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Typical Application
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Modern HP, GP, CH/H, Symons 7ft
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Older or light-duty crushers
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Summary for Buyers & Engineers
- EN 1982 CC493K = UNS C93200 = BS 1400 LG2 ≈ DIN CuSn7ZnPb → All are essentially the same traditional leaded tin bronze.
- These were designed for greased systems 30–50 years ago.
- VIIPLUS graphite-filled bushings exceed all of these standards by using higher-strength manganese bronze (CuZn25Al5Mn4Fe3) or aluminum bronze while still offering a direct C93200-based version when OEM specification demands it.
Result: 3–5× longer life, zero grease, and full drop-in replacement.Need material certificates showing equivalence to CC493K / C93200 but with superior mechanical properties?
Just contact VIIPLUS – we supply full chemical & mechanical test reports with every bushing. www.viiplus.com – The proven self-lubricating upgrade for every cone crusher bottom shell bushing.
Key Benefits of VIIPLUS Self-Lubricating Technology
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Zero Grease Maintenance – No greasing, no blocked lines, no risk of seizure.
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Ultimate Dust & Contamination Resistance – Solid lubricants stay clean and active.
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Instant Cold-Start Protection – Graphite film eliminates metal-to-metal contact.
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Environmentally Friendly – No grease usage or disposal.
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Lowest Total Cost of Ownership – Dramatically longer life + zero lubrication labor.
Technical Specifications
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Material: CuZn25Al5Mn4Fe3 + 30% high-purity graphite plugs
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Hardness: 200–230 HB
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Compressive Strength: >850 MPa
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Plug Pattern: Spiral + staggered matrix for optimal film distribution
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ID Finish: Ra 0.8 μm
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Tolerance: H7 or custom after line boring
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Certifications: ISO 9001, SGS, RoHS
Why the Mining Industry Trusts VIIPLUS
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15+ years specializing exclusively in self-lubricating crusher bushings
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Exported to 80+ countries, maintaining 100% on-time delivery in 2024–2025
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Full material certification and traceability
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24/7 engineering support with free failure analysis
Ready to Upgrade Your Cone Crusher to Maintenance-Free Operation?
Contact VIIPLUS for:
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Instant quote based on your exact part number
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Free samples (subject to conditions)
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Custom graphite-plugged solutions for non-standard crushers
Website: www.viiplus.com
VIIPLUS – When uptime matters, trust the original experts in self-lubricating graphite bronze crusher bushings.
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