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BWK stroke bearings are precision linear-and-rotary bearings designed for rotational motion, limited linear stroke and combined movement on a shaft.
The range includes ST cylindrical type, STF round-flange type, STK square-flange type and STH oval/compact-flange type. Each mounting structure is also available as a B-suffix heavy-duty version.
Key Advantages
1.Supports rotation, limited linear travel and combined motion
2.Four clearly defined mounting structures
3.Standard and B-suffix heavy-duty options
4.Precision ball-retainer construction
5.Optional nickel plating can be confirmed for corrosion resistance
Series & Model Guide
| Model | Shaft Diameter (mm) | Duty | Structure |
|---|---|---|---|
| ST6 | 6 | Standard | Cylindrical / no flange |
| ST8 | 8 | Standard | Cylindrical / no flange |
| ST10 | 10 | Standard | Cylindrical / no flange |
| ST12 | 12 | Standard | Cylindrical / no flange |
| ST13 | 13 | Standard | Cylindrical / no flange |
| ST16 | 16 | Standard | Cylindrical / no flange |
| ST20 | 20 | Standard | Cylindrical / no flange |
| ST25 | 25 | Standard | Cylindrical / no flange |
| ST30 | 30 | Standard | Cylindrical / no flange |
| ST35 | 35 | Standard | Cylindrical / no flange |
| ST40 | 40 | Standard | Cylindrical / no flange |
| ST50 | 50 | Standard | Cylindrical / no flange |
| ST60 | 60 | Standard | Cylindrical / no flange |
| ST80 | 80 | Standard | Cylindrical / no flange |
| ST100 | 100 | Standard | Cylindrical / no flange |
| ST10B | 10 | Heavy duty | Cylindrical / no flange |
| ST12B | 12 | Heavy duty | Cylindrical / no flange |
| ST13B | 13 | Heavy duty | Cylindrical / no flange |
| ST16B | 16 | Heavy duty | Cylindrical / no flange |
| ST20B | 20 | Heavy duty | Cylindrical / no flange |
| ST25B | 25 | Heavy duty | Cylindrical / no flange |
| ST30B | 30 | Heavy duty | Cylindrical / no flange |
| ST35B | 35 | Heavy duty | Cylindrical / no flange |
| ST40B | 40 | Heavy duty | Cylindrical / no flange |
| ST50B | 50 | Heavy duty | Cylindrical / no flange |
| ST60B | 60 | Heavy duty | Cylindrical / no flange |
| ST80B | 80 | Heavy duty | Cylindrical / no flange |
| ST100B | 100 | Heavy duty | Cylindrical / no flange |
| STF6 | 6 | Standard | Round flange |
| STF8 | 8 | Standard | Round flange |
| STF10 | 10 | Standard | Round flange |
| STF12 | 12 | Standard | Round flange |
| STF13 | 13 | Standard | Round flange |
| STF16 | 16 | Standard | Round flange |
| STF20 | 20 | Standard | Round flange |
| STF25 | 25 | Standard | Round flange |
| STF30 | 30 | Standard | Round flange |
| STF35 | 35 | Standard | Round flange |
| STF40 | 40 | Standard | Round flange |
| STF50 | 50 | Standard | Round flange |
| STF60 | 60 | Standard | Round flange |
| STF80 | 80 | Standard | Round flange |
| STF100 | 100 | Standard | Round flange |
| STF6B | 6 | Heavy duty | Round flange |
| STF8B | 8 | Heavy duty | Round flange |
| STF10B | 10 | Heavy duty | Round flange |
| STF12B | 12 | Heavy duty | Round flange |
| STF13B | 13 | Heavy duty | Round flange |
| STF16B | 16 | Heavy duty | Round flange |
| STF20B | 20 | Heavy duty | Round flange |
| STF25B | 25 | Heavy duty | Round flange |
| STF30B | 30 | Heavy duty | Round flange |
| STF35B | 35 | Heavy duty | Round flange |
| STF40B | 40 | Heavy duty | Round flange |
| STF50B | 50 | Heavy duty | Round flange |
| STF60B | 60 | Heavy duty | Round flange |
| STF80B | 80 | Heavy duty | Round flange |
| STF100B | 100 | Heavy duty | Round flange |
| STK6 | 6 | Standard | Square flange |
| STK8 | 8 | Standard | Square flange |
| STK10 | 10 | Standard | Square flange |
| STK12 | 12 | Standard | Square flange |
| STK13 | 13 | Standard | Square flange |
| STK16 | 16 | Standard | Square flange |
| STK20 | 20 | Standard | Square flange |
| STK25 | 25 | Standard | Square flange |
| STK30 | 30 | Standard | Square flange |
| STK35 | 35 | Standard | Square flange |
| STK40 | 40 | Standard | Square flange |
| STK50 | 50 | Standard | Square flange |
| STK60 | 60 | Standard | Square flange |
| STK80 | 80 | Standard | Square flange |
| STK100 | 100 | Standard | Square flange |
| STK6B | 6 | Heavy duty | Square flange |
| STK8B | 8 | Heavy duty | Square flange |
| STK10B | 10 | Heavy duty | Square flange |
| STK12B | 12 | Heavy duty | Square flange |
| STK13B | 13 | Heavy duty | Square flange |
| STK16B | 16 | Heavy duty | Square flange |
| STK20B | 20 | Heavy duty | Square flange |
| STK25B | 25 | Heavy duty | Square flange |
| STK30B | 30 | Heavy duty | Square flange |
| STK35B | 35 | Heavy duty | Square flange |
| STK40B | 40 | Heavy duty | Square flange |
| STK50B | 50 | Heavy duty | Square flange |
| STK60B | 60 | Heavy duty | Square flange |
| STK80B | 80 | Heavy duty | Square flange |
| STK100B | 100 | Heavy duty | Square flange |
| STH10 | 10 | Standard | Oval flange |
| STH12 | 12 | Standard | Oval flange |
| STH13 | 13 | Standard | Oval flange |
| STH16 | 16 | Standard | Oval flange |
| STH20 | 20 | Standard | Oval flange |
| STH25 | 25 | Standard | Oval flange |
| STH30 | 30 | Standard | Oval flange |
| STH35 | 35 | Standard | Oval flange |
| STH40 | 40 | Standard | Oval flange |
| STH50 | 50 | Standard | Oval flange |
| STH60 | 60 | Standard | Oval flange |
| STH10B | 10 | Heavy duty | Oval flange |
| STH12B | 12 | Heavy duty | Oval flange |
| STH13B | 13 | Heavy duty | Oval flange |
| STH16B | 16 | Heavy duty | Oval flange |
| STH20B | 20 | Heavy duty | Oval flange |
| STH25B | 25 | Heavy duty | Oval flange |
| STH30B | 30 | Heavy duty | Oval flange |
| STH35B | 35 | Heavy duty | Oval flange |
| STH40B | 40 | Heavy duty | Oval flange |
| STH50B | 50 | Heavy duty | Oval flange |
| STH60B | 60 | Heavy duty | Oval flange |
![]() | B suffix indicates the heavy-duty version. Final stroke, load rating and dimensions should be confirmed before quotation. |
Applications
Automation and indexing mechanisms
Packaging and printing machinery
Fixture and tooling systems
Measuring and inspection equipment
Short-stroke linear-rotary assemblies
Packaging & Inquiry
For model confirmation or quotation, send the required series, shaft diameter, stroke, duty type, quantity and application requirements.
WhatsApp: +86 188 6688 2299
Email: admin@bwkbearing.com
Please mention "BWK Website" when contacting us.
BWK provides reliable bearing solutions for industrial and agricultural applications, supported by stable supply, strict quality control and flexible OEM & ODM services.
