Thrust Ball Bearings
51128 Thrust Ball Bearing
140 × 180 × 31 mm
51128 is a thrust ball bearing from the 511 series with a 140 mm bore, a 180 mm outside diameter and a 31 mm height. It has a dynamic load rating of 99,900 N and a static load rating of 360,000 N and a speed rating of 1,620 rpm (oil lubrication), weighing about 2.05 kg. The radial cross-section (D − d) is 40 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
51128 Specifications
| Bearing No. | 51128 |
|---|---|
| d (Bore) | 140 mm |
| D (Outer Dia.) | 180 mm |
| H (Height) | 31 mm |
| Dynamic Load | 99,900 N |
| Static Load | 360,000 N |
| Max. RPM | 1,620 |
| Weight | 2.05 kg |
| Series | 511 Series Single Direction Thrust Ball Bearings |
51128 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 511 series page.
51128 M
machined brass cage
Other Bearings with 140 mm Bore
| Bearing No. | Series | D (Outer Dia.) mm | Dynamic Load N |
|---|---|---|---|
| 51228 | 512 | 200 | 171,000 |
Neighbouring Sizes in the 511 Series
51128 — Frequently Asked Questions
What are the dimensions of the 51128 bearing?
The 51128 has a bore (d) of 140 mm, an outside diameter (D) of 180 mm and a height of 31 mm, so it is written 140 × 180 × 31 mm.
What is the load rating of the 51128?
Dynamic load rating 99,900 N and static load rating 360,000 N. The speed rating is 1,620 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 51128 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 51128 M (machined brass cage). Tell us the exact designation you need in a quote request.
Which other bearings have the same 140 mm bore as the 51128?
Other thrust ball bearings with a 140 mm bore include 51228 (200 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 51128 bearing across India?
Yes. Logass Trade Centre supplies the 51128 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 51128?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.