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professional manufacturer and distributor for special materials bearings
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Engineered for continuous furnace, kiln, heat-treatment, and industrial oven systems where standard bearings fail due to lubrication breakdown and thermal expansion mismatch.
HTB series are our engineered high-temperature bearing codes. Please always use our part number when ordering.
| Brand | Model | Our Replacement | Clearance | Lubrication |
|---|---|---|---|---|
| SKF | 6204-2Z | HTB-6204-C4 | C4 | Graphite |
| SKF | 6306-C3 | HTB-6306-C4 | C4 | Graphite |
| FAG | 6005-C3 | HTB-6005-C4 | C4 | MoS₂ |
| NSK | 6908VV | HTB-6908-HC | C3 | Dry Solid |
| TIMKEN | 6204-2Z | HTB-6204-C4 | C4 | Graphite |
Disclaimer: All trademarks (SKF®, FAG®, NSK®, TIMKEN®) are the property of their respective owners. This cross-reference is for compatibility comparison only. We are an independent supplier of replacement parts.
Trademark disclaimer: SKF, FAG, NSK and TIMKEN are registered trademarks of their respective owners. This cross-reference is provided for engineering compatibility purposes only and does not imply any affiliation or endorsement. Need a different model? Send your part number for matching within 24h.
Lubrication breakdown at continuous high temperature
Thermal expansion causing clearance collapse
Oxidation inside furnace environments
Incorrect replacement selection during procurement
Procurement Insight: Most premature failures are caused by lubrication collapse and improper clearance selection — not material defects. Standard bearings fail in weeks; our engineered series lasts 12–18 months.
| Factor | Standard Bearings | Our 500°C Bearings |
|---|---|---|
| Replacement frequency | Every 2–4 weeks | Every 12–18 months |
| Maintenance effort | Frequent relubrication | Reduced (solid lubrication) |
| Unplanned downtime risk | High | Controlled |
| Estimated annual downtime cost* | $48,000+ | $0 unplanned interruptions |
Example calculation based on typical furnace line assumptions. Actual savings depend on your operating conditions. Contact us for a personalized estimate.
*Based on 1 shutdown every 3 weeks, 4-hour downtime, $700/hour lost production + $500 labor/parts. Actual savings vary.
| Operating Temperature | Recommended Series |
|---|---|
| ≤300°C | Standard high-temp bearings |
| 300–450°C | Reinforced clearance series (C4 / custom) |
| 450–500°C | 500°C high temperature bearings (recommended) |
✔ Continuous annealing furnace systems
✔ Industrial kiln conveyors
✔ Heat-treatment production lines
✔ Industrial oven and drying systems
● Bearing replacement matching report
● Thermal expansion calculation (shaft & housing)
● Lubrication selection support (Graphite/MoS₂/hybrid)
● Lifecycle optimization & MTBF improvement advice
| Question | Answer |
|---|---|
| Do you offer warranty? | Yes — 18 months or 8,000 operating hours. Covers manufacturing defects. |
| What if bearings fail due to a defect? | Replacement or credit after verification; free failure analysis included for 3 samples. |
| Can we test samples before bulk order? | Absolutely. Sample orders with flexible quantity (2 pcs min) are welcome. |
| Expedited lead time for samples? | 10–12 days expedited service for first-time buyers (up to 20 pieces). |
| Is batch traceability provided? | Yes — batch number, heat treatment code, and clearance report on every package. |
| Can you replace a non-listed SKF/FAG model? | Yes — send us your model/drawing, we reply with cross-reference within 24h. |
Heat-stabilized steel
S1/S2 treatment, hardness retention at 500°C
Hybrid ceramic reinforcement
Lower thermal expansion, rotational stability
Solid lubrication
Graphite / MoS₂ – no grease breakdown
C3, C4, or custom clearance
Application-specific thermal expansion calculation
Choose how to proceed — we respond within 24 hours (working days).
Nossas orientações, suas soluções!
NO.23 JIAHE ROAD XIAMEN CHINA
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