51110 Thrust Ball Bearing 50*70*14mm For Crane Gearbox Mining Machinery Vertical Shaft Equipment
- 51110 is an open‑type single‑direction thrust ball bearing. It is specially engineered to bear pure one‑way axial load. The stamped steel cage keeps steel balls well‑positioned. Made of hardened GCr15 bearing steel, it features high static load capacity, compact thickness and stable rotary performance, widely fitted for machine‑tool spindles, vertical shafts, lifting machinery and positioning fixtures.
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| Specifiion | Value |
|---|---|
| Bearing Model | 51110 |
| Bearing Type | Single‑direction Thrust Ball Bearing |
| Number of row | Single Row |
| Inner diameter d | 50 mm |
| Outer diameter D | 70 mm |
| Width B | 14 mm |
| Material | GCr15 Chrome Bearing Steel |
| Seal Type | Open |
| Minimum Chamfer r | 1 mm |
| Basic Dynamic Load Cr | 27200 N |
| Basic Static Load C0r | 70200 N |
| Grease Limit Speed | 2800 rpm |
| Oil Limit Speed | 4300 rpm |
| Net Weight | 0.17 kg |
| Retainer Material | Steel Stamping Cage |
- Designed for stable single‑direction heavy axial load bearing
- Light‑weight durable stamped steel cage with low friction resistance
- Compact slim structure, saves installation space for shaft assemblies
- Hardened GCr15 steel raceway with outstanding compression‑wear resistance
- Open‑type layout for easy grease maintenance and routine inspection
- High static load rating suitable for stationary and low‑speed working conditions
- Machine tool vertical spindle and loing jig assemblies
- Crane, hoist and lifting equipment rotary shafts
- Gearbox end‑face axial positioning components
- Packaging machinery and rotating fixture parts
- Mining equipment hand‑operated screw adjustment mechanism
- Motor end cover and heavy‑duty clutch thrust components
*Check matched bearing models to complete your mechanical assembly.
- 30 years professional bearing industry experience
- ISO certified strict quality inspection
- Flexible OEM & private label customization
- 3-5 days fast delivery for stocked bearings
- Full bearing series, universal interchangeable size
- Factory direct price & reliable after-sales service
Q1: What type of load can the 51110 bearing take?
A1: This single‑direction thrust ball bearing is primarily applied to bear one‑way axial force, it is not fit for radial loads.
Q2: What material is the bearing retainer?
A2: It adopts low‑cost stamped steel cage which holds rolling balls steadily.
Q3: Can this thrust bearing run at high rotational speed?
A3: Its oil‑lubried limiting speed reaches 4300 rpm and grease lubriion suits low‑speed scenarios.
Q4: Does 51110 come with built‑in sealing covers?
A4: It belongs to the open‑style bearing, users need to add external dust‑proof structure for harsh‑duty environments.
Q5: How to prolong the service life of thrust ball bearing?
A5: Avoid radial force on the shaft, carry out periodic lubriion and guarantee parallel mounting of two race‑rings.
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