Metric Single Direction Thrust Ball Bearing
Metric single direction thrust ball bearings are designed to support axial load in one direction while allowing smooth rotation between a shaft washer, housing washer and ball-cage assembly. This TFL product list covers standard metric thrust ball bearing options, including 511, 512, 513 and 514 series, plus selected large-bore 510 and 591 series models. Buyers can compare bore diameter, outer diameter, shaft washer diameter, housing washer inner diameter, width, cage material, dynamic thrust load, static thrust load, speed and weight. These bearings are commonly used in vertical shaft systems, machine tools, pumps, gearboxes, lifting equipment and industrial positioning mechanisms. TFL helps customers source SKF-style replacement options based on bearing number, drawings, samples or application requirements.
Optimized for Single Direction Axial Loads
Precise Metric Dimensions
Simple Structure, Easy Installation
Metric Single Direction Thrust Bearing Selection Guide
Single direction thrust ball bearings are used when the main load acts along the shaft axis in one direction. This page focuses on metric open thrust ball bearings, including 511, 512, 513 and 514 series models, with replacement and cross-reference support for common industrial bearing numbers.
How to Choose This Bearing Type
Choose a metric single direction thrust ball bearing when the application needs one-way axial load support and does not require radial load capacity. Start by confirming the shaft diameter, axial load direction, available mounting space, operating speed, lubrication method, shaft washer diameter, and housing washer fit. If axial force may act from both directions, the complete bearing arrangement should be reviewed before replacement.
Common Series and Model Range
| Series | Typical Selection Focus | Procurement Notes |
|---|---|---|
| 511 series | Compact section and standard axial load applications | Common choice for metric replacement where installation space is limited. |
| 512 series | Higher section capacity compared with smaller thrust series | Check outside diameter, width and washer dimensions before interchange. |
| 513 series | Larger thrust load capacity options | Useful when higher axial load rating is required and space allows. |
| 514 series | Large section and heavy axial load applications | Confirm speed, lubrication, mounting rigidity and installation conditions. |
| 510 / 591 / large-bore models | Special or large metric shaft applications | Confirm drawing dimensions and handling requirements before ordering. |
How to Read a Model Number: Example 51108
51108 is a representative single direction thrust ball bearing with a 40 mm bore, 60 mm outer diameter, and 13 mm width. In the model number, “511” identifies the thrust bearing series, while “08” is the standard bearing bore code, meaning a 40 mm bore for standard bore code calculation. This model is useful as a reference when checking 511 series replacement options.
| Code / Parameter | Example in 51108 | Why It Matters |
|---|---|---|
| 511 | 511 series | Indicates a compact metric single direction thrust ball bearing series. |
| 08 | 40 mm bore | For standard bearing numbers from 04 upward, the bore code is multiplied by 5 mm. |
| Shaft washer OD | 60 mm | Must match the shaft-side mounting surface. |
| Housing washer ID | 42 mm | Important for correct seating and axial load transfer. |
| Load and speed | 5738 lbf dynamic thrust load / 7000 rpm | Confirms whether the bearing suits the axial load and operating speed. |
Open Design and Lubrication Selection
The models in this product list are open thrust ball bearings. Open design allows easier lubrication, inspection, and cleaning, but the bearing is not protected by seals. Confirm grease or oil lubrication, operating temperature, contamination level, and maintenance access before selecting a model. If the application is exposed to dust, moisture, or washdown conditions, additional protection in the surrounding assembly may be required.
Key Specifications to Confirm Before Quotation
Before requesting a quote, confirm the part number, bore diameter, outer diameter, shaft washer outer diameter, housing washer inner diameter, width, chamfer dimension, cage material, dynamic thrust load, static thrust load, limiting speed, lubrication requirement, and operating temperature. For large models such as 511/500 F, drawings and installation space should be checked before order confirmation.
Replacement and Cross Reference Notes
The models on this page are listed with dimensional cross-reference support for common metric thrust ball bearing numbers. TFL can help compare 511, 512, 513, 514, 510, and 591 series models by size, load rating, speed, and washer dimensions before recommending a replacement.
Brand and part number references are used only for identification, replacement, interchange, and cross-reference purposes. TFL does not imply original-brand supply or authorized distribution unless specifically stated.
Common Applications
Metric single direction thrust ball bearings are commonly used in vertical shaft assemblies, machine tools, pumps, gearboxes, screw jacks, rotary tables, lifting mechanisms, industrial positioning systems, and equipment where axial load acts mainly from one direction.
Popular Models / High-Demand Models
Common models include 51105, 51106, 51108, 51110, 51205, 51208, 51210, 51305, 51310, 51410, 511/500 F, and 510/1000 M. 51108 is a strong priority model because it has a dedicated product page and represents a common 40 mm bore 511 series thrust bearing application.
Engineering Note
Single direction thrust ball bearings should not be used for radial load or reverse axial load. If the shaft may receive thrust from both directions, confirm whether a double direction thrust ball bearing or another bearing arrangement is more suitable.
Need Help Matching a Metric Thrust Bearing?
Send us the bearing number, drawing, sample photos, or working conditions. TFL can help check series, washer dimensions, axial load rating, speed, and available sourcing options before shipment coordination.
Request Bearing SupportTFL / SDTFL Bearing is a bearing supplier and sourcing partner. We help customers source suitable standard or customized bearing alternatives from qualified factory resources and inspect model, quantity, appearance, packaging, and basic quality requirements before shipment.
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