Cylindrical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Cylindrical Roller Bearing
Durablec Tapered Roller Bearing BDL 31321 – High-Precision, Low-Noise for Instruments & Sports Equipment
Basic Specifications
| Bore Size | 15–240 mm |
| Outer Dimension | 35–400 mm |
| Thickness | — |
Product Introduction
High-precision taper roller bearing made of bearing steel, suitable for radial load applications. Features separated design, grease or oil lubrication, and precision ratings from P0 to P2. Complies with HS code 8482200000; manufactured in China under BDL brand.7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
Key Features & Technical Highlights
| Description | Core Value |
|---|---|
| Tapered roller bearing series (31321/30615/33024/32940/32922) | Precise axial & radial load capacity for high-stiffness applications |
| Bore size: 15–240 mm; OD: 35–400 mm | Wide dimensional range — fits diverse OEM instrument & sports equipment |
| High-carbon chromium bearing steel | Superior hardness, wear resistance & fatigue life vs. standard steel |
| P0–P2 precision grades available | Meets strict runout & noise specs — ideal for precision instruments |
| Z1V1–Z3V3 low-vibration options | Ensures ultra-smooth operation in high-speed sports gear & lab devices |
| Grease or oil lubrication compatible | Flexible maintenance — supports sealed or re-lubricatable designs |
| Non-aligning, separable design | Easy installation, adjustment & replacement — reduces downtime |
| BDL-branded, made in China (HS 8482200000) | ISO-certified manufacturing with 1M pcs/year capacity & OEM/ODM support |
| Application focus: Medical instruments, cycling hubs, tennis racket tensioners, gym machines | Engineered for compact, high-reliability motion control — not generic industrial use |
| RoHS-compliant, carton/pallet packaging | Global shipping-ready with traceable quality documentation |
Why choose these tapered rollers over mainstream alternatives? Unlike generic imports, BDL’s 329/330-series bearings feature tighter raceway geometry tolerances, optimized contact angles, and batch-tested vibration profiles — critical for silent, jitter-free performance in sensitive equipment. All units undergo 100% dynamic testing before shipment. Have a custom bore/OD or precision requirement? Contact us now for a technical quote and sample support.
Product Summary
- Product Name
- Durablec Tapered Roller Bearing BDL 31321 – High-Precision, Low-Noise for Instruments & Sports Equipment
- Category
- Cylindrical Roller Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Get a Custom Quote
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Cylindrical Roller Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Custom Specifications Available
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
Request a Quote
Get a custom quote for
Durablec Tapered Roller Bearing BDL 31321 – High-Precision, Low-Noise for Instruments & Sports Equipment
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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