Bdl 51316/51317/51318/51320 Thrust Ball Bearings – High-Quality
Basic Info.
| Inner Diameter | 100 mm |
| Outer Diameter | 170 mm |
| Thickness | 55 mm |
| Type | Thrust Bearing, Non-Aligning, Single Row |
| Lubrication | Grease or Oil |
| Material | Bearing Steel |
Introduction
High-precision thrust bearing (Model 51320) with ISO9001:2008 certification. Designed for axial load applications, it features P0–P2 precision ratings, Z1V1–Z3V3 vibration control, and is in stock for immediate delivery. Made in China under BDL brand.
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Warranty 1 year
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Description
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 — meets CNC spindle & servo motor tolerances |
| Vibration Classes: Z1V1 to Z3V3 | Low-noise operation — ideal for precision machinery and quiet industrial environments |
| Lubrication: Grease or Oil | Pre-greased with high-temp lithium complex grease; oil-lubricated variants support continuous high-RPM use |
| Material: High-Carbon Chromium Bearing Steel (GCR15 equivalent) | Hardness ≥61 HRC, fatigue life extended by 22% vs. standard ISO grade |
| Certified: ISO 9001:2008 | Full traceability — batch-tested for hardness, geometry, and surface finish |
| Non-Aligning, Separated Design | Easy installation/maintenance; shaft/washer can be mounted independently |
| Application Focus | Vertical pumps, crane hooks, machine tool tables, automotive steering columns, wind turbine yaw systems |
| Why Not Generic? — BDL Advantage | Stricter ΔDmp/Δdmp tolerance control (±0.008 mm), superior raceway micro-finish (Ra ≤0.2 μm), and 100% in-stock availability — no 8–12 week lead times |
Frequently Asked Questions:
Q: Is this bearing interchangeable with SKF 51320?
A: Yes — identical dimensions, load ratings, and mounting interfaces; certified test reports available.
Q: Can it handle shock loads?
A: Yes — hardened washers and optimized ball groove geometry absorb dynamic impact per DIN 620-3.
Q: What’s the max operating temperature?
A: 120°C continuous (grease-lubricated); up to 150°C with special high-temp grease.
