Thrust Ball Bearings
51209 Thrust Ball Bearing
45 × 73 × 20 mm
51209 is a thrust ball bearing from the 512 series with a 45 mm bore, a 73 mm outside diameter and a 20 mm height. It has a dynamic load rating of 43,200 N and a static load rating of 94,500 N and a speed rating of 3,330 rpm (oil lubrication), weighing about 0.317 kg. The radial cross-section (D − d) is 28 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
51209 Specifications
| Bearing No. | 51209 |
|---|---|
| d (Bore) | 45 mm |
| D (Outer Dia.) | 73 mm |
| H (Height) | 20 mm |
| Dynamic Load | 43,200 N |
| Static Load | 94,500 N |
| Max. RPM | 3,330 |
| Weight | 0.317 kg |
| Series | 512 Series Single Direction Thrust Ball Bearings |
51209 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 512 series page.
51209 M
machined brass cage
Neighbouring Sizes in the 512 Series
51209 — Frequently Asked Questions
What are the dimensions of the 51209 bearing?
The 51209 has a bore (d) of 45 mm, an outside diameter (D) of 73 mm and a height of 20 mm, so it is written 45 × 73 × 20 mm.
What is the load rating of the 51209?
Dynamic load rating 43,200 N and static load rating 94,500 N. The speed rating is 3,330 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 51209 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 51209 M (machined brass cage). Tell us the exact designation you need in a quote request.
Which other bearings have the same 45 mm bore as the 51209?
Other thrust ball bearings with a 45 mm bore include 51109 (65 mm OD), 53209 (73 mm OD), 51309 (85 mm OD), 53309 (85 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 51209 bearing across India?
Yes. Logass Trade Centre supplies the 51209 Pan India with technical support, from single pieces to bulk orders. Use the quote button to share your quantity and brand preference.
Need pricing on the 51209?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.