ABOUT FK
FK Bearings, (FK Rod Ends & Spherical Plain Bearings), is a World-Class, leading USA manufacturer of rod ends, spherical bearings, custom-engineered bearings and related products. Established in 1983, FK Bearings brings over 35 years of experience to the industrial and performance racing and off-road markets.
FK Bearings has grown to become the preferred source for motion control products to nearly every industry. Their products are utilized in various applications in: construction equipment, mining equipment, material handling, transportation and off-highway equipment, automation and robotics, machine tools, agricultural equipment, military vehicles, performance racing, and many others.
PTFE (Teflon) Liners
F.K. Bearings offers self-lubricating PTFE liners on nearly all of their rod ends and spherical bearings. The PTFE liner is chemically bonded to the inner diameter of the race. The liner offers a very high load carrying capacity and has greatly increased dynamic wear characteristics. The operating temperatures of our liner range from -65° to 325 F°.
High Performance Rod Ends & Spherical Plain Bearings for Motor Sport
FK Bearings manufacture a large range of rod ends and spherical bearings used for motor sport applications. `To Finish First-You Must First Finish`
Features
- Materials-Chrome Molly, Stainless Steel or Aluminium.
- PTFE-Teflon® Liner.
- Preloaded Ball-Tight Fit, no slop or play.
- Heavy Shank Series available.
- High Misalignment Rod Ends and Spherical Bearings.
Special Products
- Weldable Tube Ends.
- Bearing Cups.
- High Misalignment Bushings.
- Rubber Boots and Seals.
- Lock Nuts.
FK Bearings Rod End Range
FK Bearings manufactures over 20 different series of commercial and precision rod ends. Inch bore sizes from 1/8” through 2” and Metric bores from 5mm – 30mm. Studded rod ends are available in Inch sizes 3 – 12 and Metric sizes 5 – 12. FK Bearings offer a variety of materials and styles to suit a broad array of application requirements. Other popular options such as lubrication fittings and PTFE liners are available on most series. Use this summary to assist with your choice of series.
Commercial/Industrial Rod Ends
CM / CF
2-piece, metal-to-metal, low carbon steel body.
CMX / CFX
2-piece, metal-to-metal, heat treated alloy steel body.
ECM / ECF
2-piece, Economy Import, metal-to-metal, low carbon steel body.
SCM-T / SCF-T
2-piece, metal-to-metal, low carbon steel body.
Precision Series Rod Ends
ALJM / ALJM-H / ALJF
3-piece, aluminum body, anodized
HJMX-T / HRSMX-T
3-piece, male, high misalignment series, high strength alloy steel. PTFE lined.
JM / JF
3-piece, low carbon steel body, alloy steel race.
JMX / JFX
3-piece, high strength alloy steel body, alloy steel race.
KMX
3-piece, male, high strength alloy steel body, injected Nylon plastic race
M-SB / F-SB
3-piece, oil-impregnated sintered bronze race series.
NJM / NJF
3-piece, Nylon race series.
PMX-T
3-piece, Performance Racing Series, 4340 high strength heat treated body, 17-4PH race, 440C stainless or 52100 steel ball at manufacturer’s option. PTFE lined.
RJM / RJF
3-piece, decorative chrome plated series.
RJMX-T
3-piece, male, alloy steel body and race, electroless nickel or hard chrome plated body. PTFE lined.
SJM-T / SJF-T
3-piece, 17-4PH body and race. PTFE line
Extra Strength – Heavy Duty Shank Rod Ends
ALRSM
3-piece, aluminum body, anodized.
HRSMX-T
3-piece, high misalignment series, high strength all
RSM
3-piece, low carbon steel body.
RSMX
3-piece, high strength alloy steel body.
CM-M / CF-M
2-piece, metric, metal-to-metal.
JM-M / JF-M
3-piece, metric, low carbon steel body, alloy steel race.
JMX-M / JFX-M
3-piece, metric, high strength alloy steel body, alloy steel race.
SCM-MT / SCF-MT
2-piece, metric, stainless steel series. PTFE lined.
Studded Rod Ends – Rod Ends with threaded bolt
Studs are available on most rod end series
FK Bearings Spherical Bearings Range
FK Bearings offers 10 different series of commercial and precision spherical plain bearings. Inch bore sizes from 3/16” through 6” and Metric bores from 5mm – 160mm. FK Bearings offer their spherical bearings in a variety of materials and styles to suit a broad array of application requirements. Use this summary to assist with your choice of series.
Commercial Series
COM / COMH
Commercial Inch Series, low carbon steel race, metal-to-metal, PTFE liner available.
COM-M
Commercial Metric Series, low carbon steel race, metal-to-metal, PTFE liner available.
IN-P
Precision Plastic Race Inch Series, Light Duty.
Precision Narrow Series
FKS / FKS-T
Heavy Duty Precision Inch Series, Alloy Steel Race, PTFE Liner Available.
FKSSX-T / FKSSX-TV
Heavy Duty Precision Inch Series, stainless steel race and ball, PTFE liner and staking grooves available.
Wide Series
WSSX-T / WSSX-TV
Wide Precision Inch Series, stainless steel race and ball, PTFE lined.
Heavy Duty Precision Series
AIN
Heavy Duty Inch Precision Series, alloy steel race, PTFE Liner Available.
High Misalignment Series
HIN-T
Heavy Duty Precision Inch High Misalignment Series, alloy steel race, PTFE Lined.
Fractured Race Series
GEZ-ES / GE-ES
Inch and Metric Spherical Plain Bearings with single fractured outer race. Imported.
FK Bearings – Special Products
FK Bearings offers a full line of complementary accessory products. These products serve to help complete your overall system design as well as enhance the performance of rod ends and spherical bearings in your application. Seals, boots, jam nuts, misalignment spacers, weldable tube ends, bearing cups, clevises and rod eyes in a wide range of sizes are among the accessories available from FK. See below the summary, use our product search for more information or contact sales and support for assistance.
Ball Joints
Low carbon steel, swaged stud retention with dirt shield. Imported. Typical uses are light duty linkages for lawn and garden equipment, snow blower controls, throttle linkages, and other light duty linkage applications.
Solid Rod Ends
Low carbon steel, zinc plated with yellow chromate. Straight bore rod ends with no misaligning ball component are used for simple linkage applications requiring good load capability without excessive misalignment. Available in bore sizes of ½”, 5/8″, and ¾” with several thread sizes and thread lengths.
Clevis
Low carbon steel, zinc plated with yellow chromate. Six sizes available with bores of 3/8″, ½”, and 11/16″ and threads of 5/8-18, ½-20, and ¾-16.
Bearing Cups
Bearing cups and snap rings for select spherical bearings.
High Misalignment Bushings
FK Bearings HB Series 17-4 Stainless Steel high misalignment bushings increase the achievable misalignment angle and reduce the bore size of rod ends and spherical plain bearings. Sold in pairs.
Adjuster Ladder
Low carbon steel, zinc plated with yellow chromate. Make your own turnbuckle linkage with ¾” (Size 12) male and female rod ends.
Jam Nuts – Inch/Metric Steel – Inch Aluminum
Jam nuts are available in Inch and Metric size, right-hand and left-hand thread. Inch sizes available from 10-32 through ¾-16, and Metric sizes from M5 through M20. Sold in packs of 25 through inch size 12, and in packs of 10 for inch sizes 14-16. All metric jam nuts sold in packs of 25.
Center Finders
Center finders are used to find or establish the length between two connecting rods. Sold in pairs.
Boots
Protect rod ends in your application with FK RERS Series boots. These boots completely enclose the head portion of the rod end, and are held in place by the mounting bolt. Sold in packages of six of the same size. Variety packs not available.
Face Seals
FK Bearings WS Series face seals are designed to fit over the exposed portion of the rod end ball to protect against dirt and moisture. Sold in packs of 6, enough for 3 rod ends. Available for rod end sizes 3 – 16.
Weldable Tube Ends
FK Bearings weldable tube ends are made from 4130 chrome moly steel, with internal right-hand and left-hand thread sizes from 10-32 through 1 1/4-12. Designed for popular tube bores and wall thicknesses. See product detail page for more details.
