51209 Bearing Overview
Image for reference only.
Core Parameters
- Main Dimensions 45mm × 73mm × mm
- Dynamic Load (Cr) 39 kN
- Static Load (Cor) 86.5 kN
- Weight 0.3 kg
Bearing Type
| Bearing Model | 51209 | |
|---|---|---|
| ID | 45 mm | Inside diameter(I.D.) |
| OD | 73 mm | Outside diameter(O.D.) |
| H | 20 mm | Height/Thickness |
| Cr | 39 kN | Radial dynamic load rating |
| Cor | 86.5 kN | Radial static load rating |
| Pu | 3.2 kN | Fatigue load limit |
| Reference speed | 3600 r/min | |
| Limiting speed | 5000 r/min | |
| Mass | 0.3 Kg | Weight |
Cage
Steel cage (Customizable: Steel / Brass / Machined Brass)
Precision Rating
(P0 / P6 / P5 / P4 available)
Clearance
Brand
WJY / OEM Available
Origin
Wafangdian, China (30+ years bearing manufacturing hub)
Quality Standard
OEM & Customization
Custom materials, cages, precision & clearance available.
Product Description
The 51 series single direction thrust ball bearing (model: 51209) is designed to handle axial loads in one direction. It features a one-piece solid brass cage and chrome steel (GCr15) construction with carbonitriding treatment for enhanced durability. The bearing has a bore diameter of 45mm, outer diameter of 73mm, and height of 20mm, providing dynamic load capacity of 39kN and static load capacity of 86.5kN. This bearing is ideal for applications such as machine tool spindles, automotive transmissions, and industrial pumps, particularly suited for light industrial machinery such as conveyors and small pumps. Compliant with ISO 9001 standards, it supports grease lubrication (with oil lubrication option for high-speed applications) and operates within a temperature range of -30°C to +120°C. During installation, a recommended torque of 30-60 N·m is advised for washer bolts to ensure optimal performance. The manufacturer offers a Standard 12-month warranty extendable up to 18 months through authorized Jinyu distributors. OEM solutions available.
Delivery & Service
Delivery Time
In-stock: 3–5 days; OEM/ODM: 20–35 days.
Shipping Methods
Ocean Freight / Land Transport
Warranty
12-month warranty, extendable to 18 months.
Pricing Information
Prices vary by precision & material. Please submit an inquiry for best quote.