Product Introduction
The TBR16UU is an open-type round flange linear bearing designed for 16 mm nominal diameter linear shafts. It belongs to the TBR series - a widely adopted standard in industrial linear motion systems that combines a cylindrical outer body with a pre-drilled flange, enabling direct bolt-down mounting onto machine frames without the need for separate pillow block housings. This design significantly simplifies integration into new machine builds and retrofits alike.
At its core, the TBR16UU uses a recirculating ball arrangement to achieve smooth, low-friction linear travel along the shaft axis. The precision-ground ball grooves distribute load evenly across the contact surface, reducing localized wear and extending service life even under continuous-duty cycles. Double rubber seals (UU) on both ends retain lubricant within the bearing and protect the internal ball circuit from dust, swarf, and light moisture ingress - a key consideration for packaging, textile, and light-industrial environments.
Specifications
| Support Designation | Shaft Dimensions | Dimensions(mm) | S2d1 × d2 × l |
Weight(g/m) |
|||||||
| E | h | B | H | T | F | C | S₁ | ||||
| TBR16 | Φ 16 | 25 | 22.14 | 50 | 14.96 | 6 | 18.71 | 37 | Φ 5.5 | 5.5 × 9.5 × 5.4 | 1.1 |
| TBR20 | Φ 20 | 27.5 | 29.01 | 55 | 19.37 | 8 | 18.96 | 40 | Φ 5.5 | 5.5 × 9.5 × 5.4 | 1.8 |
| TBR25 | Φ 25 | 32.5 | 31.97 | 65 | 20.14 | 10 | 20 | 45 | Φ 6.6 | 6.6 × 11 × 6.5 | 2.05 |
| TBR30 | Φ 30 | 37.5 | 36.52 | 75 | 22.45 | 12 | 22.96 | 55 | Φ 6.6 | 6.6 × 11 × 6.5 | 2.8 |
Support Rail Stand Lengths and Dimensions：
| Designation | TBR 16 | TBR 20 | TBR 25 | TBR 30 |
| StandardLength L | 190 | 340 | 250 | 450 |
| 340 | 640 | 450 | 850 | |
| 640 | 940 | 850 | 1250 | |
| 940 | 1240 | 1250 | 1450 | |
| N | 20 | 20 | 25 | 25 |
| P | 150 | 150 | 200 | 200 |
| Max.length | 6000 | 6000 | 6000 | 6000 |
Why TBR16UU?
Open-type design for easy mounting
The open slot allows direct shaft access without full disassembly - ideal for designs where the shaft cannot be removed and reduces installation time on the production floor.
Consistent precision from 100+ CNC machines
Manufactured in our 19,800 m² facility with over 100 advanced CNC and CNC grinding machines. Every bearing undergoes rigorous dimensional inspection before leaving the line.
Low friction, long service life
Precision-ground ball grooves and quality steel balls minimize friction during linear travel, reducing wear on both bearing and shaft for longer maintenance intervals.
ISO 9001 quality management
Our certified QMS enforces strict process controls and traceability at every stage - from raw material sourcing through final inspection - so you receive consistent quality in every shipment.
Key features
Bore: 16 mm
Fits standard 16 mm linear shafts (optical axis). Compatible with SQ-brand optical axes and most industry-standard shafts.
Open-type (UU suffix)
Double rubber seals on both ends retain grease and block contaminants, extending service life in dusty or lightly humid environments.
Drop-in replacement
Dimensional equivalence with JIS B 1192 / ISO 10285 standards. Replaces HIWIN, IKO, THK, and Misumi equivalents without machine modification.
OEM & custom branding
Private-label packaging, custom logo printing, and bespoke box designs available. Minimum quantities apply - contact us for details.
Typical applications
- Industrial automation & pick-and-place
- Packaging machiney
- Textile & printing equipment
- Medical & laboratory devices
- Electronics assembly lines
- Chemical processing equipment
- Engineering & transport machinery
- CNC machines & linear actuators
About the manufacturer
Founded on 19 June 2007 and headquartered at No. 97 Xianxia Road, Liandu District, Lishui, Zhejiang, China. A high-tech enterprise dedicated to the research, development, and precision manufacturing of linear motion components under the registered brands SQ and Siqiang Bearing. Vice-chairman unit of the Lishui Rolling Functional Components Association.
01
ISO 9001 certified quality
Stringent quality management across every production stage. Recognized as a Lishui City Integrity Enterprise - zero tolerance for dimensional deviation.
02
Advanced manufacturing
Over 100 CNC machining centers and CNC grinding machines ensure consistent precision across high-volume production runs for B2B customers worldwide.
03
Full OEM capability
Custom seals, plastic bags, paper boxes, master cartons, and logo printing all available. Sampling and branded packaging design supported from initial inquiry.
04
Own export rights
Direct international shipping without intermediaries. Competitive lead times and transparent documentation for customs clearance in your region.
Frequently asked questions
Q: What is the difference between TBR and LM series linear bearings?
A: TBR bearings use a round outer body designed to sit in a matching round housing or pillow block, making them easy to mount without precision-bored housings. LM (or LME) bearings have a plain cylindrical outer diameter that requires a close-tolerance bore in the housing. TBR16UU is ideal when you want to use standard, off-the-shelf pillow blocks (such as SK16 or SHF16).
Q: Which optical axis (linear shaft) should be used with TBR16UU?
A: TBR16UU is designed for a 16 mm nominal diameter linear shaft with h6 or h7 tolerance. We recommend pairing it with our SQ-brand 16 mm optical axis, which is ground and polished to the correct tolerance for smooth, low-play operation.
Q: Is custom packaging or private labeling available for bulk orders?
A: Yes. We offer full OEM customization including branded paper boxes, master cartons, logo printing, and custom part numbering. Samples of packaging can be arranged. Please contact our sales team with your branding requirements and target order quantity.
Q: What is the warranty and after-sales policy?
A: All products carry a one-year quality warranty from the date of shipment. We recommend applying anti-rust oil before long-term storage. If components are found to be defective under normal use conditions within the warranty period, replacements are provided free of charge.
Q: Do you provide installation instructions or technical support?
A: Yes. We provide operation videos and assembly tutorials upon request. Our technical team is available to advise on correct mounting orientation, preload selection, and lubrication intervals to maximize the service life of your bearings.
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