Bdl 51316/51317/51318/51320 Thrust Ball Bearings – High-Quality, Precision, Load-Optimized
Basic Info
| Inner Diameter | 100 mm |
|---|---|
| Outer Diameter | 170 mm |
| Thickness | 55 mm |
Introduction
BDL 51320 thrust bearing made of high-grade bearing steel, suitable for axial load applications. Features grease or oil lubrication, precision grades P0–P2, vibration levels Z1V1–Z3V3, ISO9001:2008 certified, and ready for OEM/ODM service.Key Specifications & Why Engineers Choose BDL 51320 Thrust Ball Bearings
| Description | Core Value |
|---|---|
| Model: 51320 (also compatible with 51316/51317/51318) | Drop-in replacement for SKF 51320 — seamless integration, no redesign needed |
| Dimensions: 100×170×55 mm | Optimized axial load capacity (Ca = 245 kN) for heavy-duty thrust applications |
| Precision Grades: P0/P6/P5/P4/P2 | Ultra-precise P4/P2 options available — ideal for high-speed spindles & precision machinery |
| Vibration Classes: Z1V1 to Z3V3 | Low-noise operation — meets strict OEM requirements in CNC and medical equipment |
| Lubrication: Grease or oil | Flexible maintenance — pre-greased for life or field-re-lubricatable via separated design |
| Material: High-purity bearing steel | Enhanced fatigue life & corrosion resistance vs. standard SAE 52100 |
| Certification: ISO 9001:2008 | Consistent batch-to-batch quality — backed by full traceability & test reports |
| Non-aligning, single-row thrust design | Pure axial load handling — zero radial misalignment risk in vertical shafts |
| Origin: China (HS Code 8482102000) | Cost-efficient without compromise — 30% lower TCO vs. premium brands, same performance |
| OEM/ODM support + in-stock availability | Fast lead time (≤3 days) — critical for MRO and urgent production line needs |
Used in hydraulic turbines, crane turntables, vertical pumps, and gearmotor thrust supports — where reliability under constant axial load is non-negotiable. Unlike generic thrust bearings, BDL 51320 features tighter raceway geometry control and optimized ball groove curvature for 22% higher dynamic load rating. FAQ: Yes — interchangeable with SKF 51320 per ABEC-1/ISO P0 tolerances; yes — custom packaging & branding supported; yes — sample batches available with full dimensional & vibration test data. Ready to verify fit, pricing, or request a technical datasheet? Send your inquiry now.
- Product Name
- Bdl 51316/51317/51318/51320 Thrust Ball Bearings – High-Quality, Precision, Load-Optimized
- Category
- Thrust Ball Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Thrust Ball 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 |
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.
The engineering partner advantage
Get a custom quote for
Bdl 51316/51317/51318/51320 Thrust Ball Bearings – High-Quality, Precision, Load-Optimized
NDA protected · Free samples for orders > $50K · Reply within 12 hours