SA…T/K Series — Male Thread Rod End Bearing Maintenance Free PTFE Lined

SA-TK-SERIES — 16 bore sizes · d 5–50 mm · External male thread · PTFE composite liner · Zinc-plated rod body.

MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.

Rod End Bearings › Maintenance-Free / Male Thread

SA...T/K Series — Male Thread Rod End Bearing Maintenance Free PTFE Lined

16 bore sizes · d 5–50 mm · External male thread · PTFE composite liner · Zinc-plated rod body

Maintenance-Free16 Sizes 5–50mmMale ThreadPTFE LinerZinc Plated

🆕 Series Overview

The SA...T/K series is the male-thread counterpart to SI...T/K — maintenance-free rod end with an external thread on the rod body and PTFE composite liner. The external thread screws directly into female-threaded clevises, yokes, and actuator bodies.

Available in 16 bore sizes from 5 mm to 50 mm. Right-hand thread standard; suffix L for left-hand. Suffix S for stainless steel. Male-thread configuration is often specified for retrofit applications where existing hardware has female-threaded rod-end sockets.

SA TK rod end bearing product photo

⚙ Key Design Features

🔧

Maintenance-Free PTFE Liner

PTFE composite at spherical contact. No re-lubrication required for rated service life.

🔁

Male External Thread

External thread connects directly to female-threaded clevises, yokes, and actuator forks.

🔭

Zinc-Plated Rod Body

Zinc electroplating for corrosion resistance.

✅

Left/Right Thread

Standard right-hand. Suffix L for left-hand thread.

📈

16 Bore Sizes

5 mm to 50 mm.

🔎

Stainless Option

Suffix S for stainless steel rod body.

📋 Specification Table

ⓘ Thread d3 = external rod body thread. dk = bearing bore. L1 = rod body length. L2 = overall length where applicable. Dimensions mm, load ratings kN, weight grams.

Part No. d Thread B C1 L1 d2 L2 dk a° Dyn C kN Sta C0 kN Wt g
SA5T/K 5 M5x0.8 8 6 19 18 — 11.11 13 5.7 6.0 13
SA6T/K 6 M6x1.0 9 6.75 21 20 — 12.7 13 7.2 7.65 20
SA8T/K 8 M8x1.25 12 9 25 24 42 15.875 14 11.6 12.9 38
SA10T/K 10 M10x1.25 14 10.5 28 28 46 19.05 13 14.5 18.0 55
SA12T/K 12 M12x1.75 16 12 32 32 54 22.225 13 17.0 24.0 85
SA14T/K 14 M14x2.0 19 13.5 36 36 78 25.4 15 24.0 31.0 140
SA16T/K 16 M16x2.0 21 15 37 40 87 28.575 15 28.5 39.0 210
SA18T/K 18 M18x1.5 23 16.5 41 44 94 31.75 15 42.5 47.5 280
SA20T/K 20 M20x1.5 25 18 45 50 103 34.925 14 42.5 57.0 380
SA22T/K 22 M22x1.5 28 20 46 54 111 38.1 15 57.0 68.0 480
SA25T/K 25 M24x2.0 31 22 55 60 124 42.85 15 68.0 85.0 640
SA28T/K 28 M27x2.0 35 24 62 66 136 47.6 15 86.0 107.0 800
SA30T/K 30 M30x2.0 37 25 66 70 145 50.8 17 88.0 114.0 1100
SA35T/K 35 M36x2.0 43 28 85 80 180.5 57.1 16 101 206 1640
SA40T/K 40 M42x2.0 49 33 90 91 195.5 66.6 17 124 280 2300
SA50T/K 50 M48x2.0 60 45 105 117 243.5 82.5 12 308 485 4800
SA TK rod end bearing specification drawing

🔭 Materials & Construction

Rod body: carbon steel zinc-plated. Inner ring: 100Cr6. Outer race: steel with PTFE composite liner. Identical specification to SI...T/K.

●

100Cr6 Inner Ring

Hardened, ground spherical OD.

🔭

PTFE Composite Liner

Bonded to outer race. Dry-running, rated -50 to +200 C.

🔎

Zinc-Plated Rod Body

Electroplated zinc on carbon steel.

🏭 Typical Applications

⚙

Actuator Rod Ends

Direct connection to hydraulic or pneumatic cylinder rod ends in automation where female-threaded sockets are fitted.

📈

Steering Linkages

Tie-rod ends in agricultural vehicles and industrial trucks using female-threaded steering components.

🔎

Press and Clamp Mechanisms

Toggle clamp and press linkage rod ends where external-thread connection to the clamping yoke is required.

⚙

HVAC Control Rods

Damper and air handler control rod ends where re-lubrication access is not planned.

🔭

Conveyor Systems

Tensioning rod ends on conveyor frames where grease-free operation prevents product contamination.

📈

Test Equipment

Load application linkages in fatigue testing machines where consistent friction-free operation is critical.

rod end bearings selection guide overview

🔧 Installation & Maintenance

🔎 Thread Engagement

Minimum 1.0 to 1.5x nominal diameter. Thread-lock under vibration.

🔧 Bore Fit

h6 shaft tolerance for press fit.

📈 Jam Nut

Lock position with jam nut after final adjustment.

⚙ No Lubrication

PTFE liner provides dry-running. Do not add grease.

🌡 Temperature

PTFE -50 to +200 C. Zinc rod body -30 to +120 C.

✅ End of Life

Replace when detectable play develops.

❓ Frequently Asked Questions

▶ What does maintenance-free mean for this rod end bearing?

Maintenance-free means the PTFE composite or PTFE fabric liner provides dry-running lubrication at the spherical contact without requiring periodic grease re-lubrication. Under normal operating conditions the rated service life is achieved without adding lubricant. Protect the bearing from abrasive contamination and chemical attack on the PTFE liner, as these cannot be corrected by re-lubrication.

▶ Can this rod end be used for continuous rotation?

No. Rod end bearings with spherical plain bearing inserts are designed for oscillating and tilting motion. Continuous rotation generates heat at the spherical contact that exceeds the PTFE liner PV limit, causing rapid wear. For rotating applications, select a rod end with a rolling-element insert.

▶ How do I order left-hand thread?

Add suffix L to the part number for left-hand thread. For example, SI 18T/K L indicates left-hand internal thread. Right-hand thread is standard with no suffix required. Stainless steel variants add suffix S.

▶ What is the maximum misalignment angle?

The misalignment angle alpha (a) is listed in the specification table for each size. It is the maximum angular displacement between the bore axis and the housing axis. Do not exceed this angle in service — sustained overangle causes edge loading and shortens service life.

▶ What shaft and housing tolerances are recommended?

Inner ring bore: shaft tolerance h6 for interference fit, f7 for sliding fit. For rod body thread: use standard metric thread engagement of 1.0 to 1.5 times the nominal thread diameter minimum. Apply thread-locking compound where vibration loosening is a risk.

📞 Ready to Order?

MOQ is 100 units per model. Provide bore diameter, thread specification, load case, and operating environment. All catalogue data is for reference only.

SA-TK-SERIES — 16 bore sizes · d 5–50 mm · External male thread · PTFE composite liner · Zinc-plated rod body.

MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.

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