Representative product illustrationHRB / THRUST BALL BEARINGS
51208
Thrust Ball Bearings
Separable bearings consisting of shaft and housing washers with a ball-and-cage assembly. Single-direction and double-direction versions support axial loads in the corresponding direction.
- Separable washer and cage assembly
- Single-direction and double-direction designs
- Spherical seating options in selected series
PRODUCT OVERVIEW
51208 — Thrust Ball Bearings
Separable bearings consisting of shaft and housing washers with a ball-and-cage assembly. Single-direction and double-direction versions support axial loads in the corresponding direction.
Thrust ball bearings do not support radial loads. Check minimum load, speed and mounting alignment.
Typical application areas: Vertical pumps, Jacks, Crane hooks, Vertical machine tool supports. Suitability is reviewed against the specific operating conditions and bearing arrangement.
Technical Specifications
| Brand | HRB |
|---|---|
| Designation | 51208 |
| Bearing Family | Thrust Ball Bearings |
| Bore Diameter d | 40 mm |
| Outside Diameter D | 68 mm |
| Width H | 19 mm |
| Basic Dynamic Load Rating | 47 kN |
| Basic Static Load Rating | 74.1 kN |
| Limiting Speed — Grease | 2800 r/min |
| Limiting Speed — Oil | 3800 r/min |
| Reference Weight | Not listed |
| Bore Type | Confirm by designation |
| Material | Confirm by specification |
| Precision | Confirm by specification |
| Clearance / Sealing / Cage | According to the full designation |
| Availability & Delivery | Confirmed on quotation |
Source: HRB Rolling Bearings Catalog, printed page 305 / PDF page 309. Reference data supports initial selection; confirm the final drawing and exact specification before ordering.
Dimensions & Technical Documents
d = 40 mm; D = 68 mm; H = 19 mm
Ordering Information
Is there a minimum order quantity?+
There is no strict MOQ limit stated for standard bearings in the HRB product catalog. Quantities for custom and non-standard bearings are agreed according to specifications and manufacturing complexity. Availability and commercial terms are confirmed in the quotation.
Are samples available?+
Samples of standard models can be requested. Custom samples require technical review; sample cost and delivery time are agreed for the project.
What is the normal production lead time?+
The supplied company information states that in-stock standard models can be dispatched promptly, while regular standard bearing production orders normally require 60 working days. Availability, custom lead times and shipment dates are confirmed for each order.
What is the warranty policy?+
Warranty terms are agreed in the sales contract and apply under normal installation and compliant operating conditions. Manufacturing quality issues may receive technical support, repair or replacement according to the agreement. Improper use and human-caused damage are excluded.
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