Thrust Ball Bearings
51309 Thrust Ball Bearing
45 × 85 × 28 mm
51309 is a thrust ball bearing from the 513 series with a 45 mm bore, a 85 mm outside diameter and a 28 mm height. It has a dynamic load rating of 72,000 N and a static load rating of 146,700 N and a speed rating of 2,610 rpm (oil lubrication), weighing about 0.684 kg. The radial cross-section (D − d) is 40 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
51309 Specifications
| Bearing No. | 51309 |
|---|---|
| d (Bore) | 45 mm |
| D (Outer Dia.) | 85 mm |
| H (Height) | 28 mm |
| Dynamic Load | 72,000 N |
| Static Load | 146,700 N |
| Max. RPM | 2,610 |
| Weight | 0.684 kg |
| Series | 513 Series Single Direction Thrust Ball Bearings |
51309 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 513 series page.
51309 M
machined brass cage
Neighbouring Sizes in the 513 Series
51309 — Frequently Asked Questions
What are the dimensions of the 51309 bearing?
The 51309 has a bore (d) of 45 mm, an outside diameter (D) of 85 mm and a height of 28 mm, so it is written 45 × 85 × 28 mm.
What is the load rating of the 51309?
Dynamic load rating 72,000 N and static load rating 146,700 N. The speed rating is 2,610 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 51309 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 51309 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 51309?
Other thrust ball bearings with a 45 mm bore include 51109 (65 mm OD), 51209 (73 mm OD), 53209 (73 mm OD), 53309 (85 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 51309 bearing across India?
Yes. Logass Trade Centre supplies the 51309 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 51309?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.