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Gear Racks

A rack gear is a rack-type gear that has been cut into a flat bar. By combining with a normal round gear, it is possible to convert rotational motion into linear motion. It is used for automobile steering and telescope focusing. Since it is basically a set with gears, you must choose one that matches the tooth surface. There is also a resin rack gear that can change its shape freely, and it can be used for a wide range of applications such as original work.
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  1. DR Molded Flexible Rack
    KHK Gears (Kohara Gear Industry) DR Molded Flexible Rack
    It is a molded product that can be deformed and can be used in a wide range of applications not found in metal racks. * "Duracon (R)" is a registered trademark of Polyplastics Co., Ltd. in Japan and other countries.
    Type  Rack  Material  Duracon ®(M90-44)  Shape  R4  Pressure Angle (°)  20  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 8  Tooth Surface Hardness  110~120HRR  Gear Surface Treatment  Molding  Gear Cutting Reference Plane  Bottom 
    Rating:
    91%
    from S$38.99
    Min. 2 days
  2. SR Gear Rack
    KHK Gears (Kohara Gear Industry) SR Gear Rack
    Type  Rack  Material  S45C  Shape  R1  Surface Treatment  Black dyed  Pressure Angle (°)  20  Heat Treatment  Straightening annealing  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4  Tooth Surface Hardness  95HRB or less  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom 
    Rating:
    100%
    from S$11.99
    Min. 2 days
  3. PR plastic rack
    KHK Gears (Kohara Gear Industry) PR plastic rack
    Type  Rack  Material  MC901  Shape  R1  Pressure Angle (°)  20  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Level 5  Tooth Surface Hardness  115~120HRR  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom 
    Rating:
    100%
    from S$89.99
    Min. 2 days
  4. BSR Brass Rack
    KHK Gears (Kohara Gear Industry) BSR Brass Rack
    A small module rack made of free-cutting brass (C3604) that has excellent workability and is resistant to rust.
    Type  Rack  Material  Free-cutting brass (C3604)  Shape  R1  Pressure Angle (°)  20  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4  Tooth Surface Hardness  (80HV or more) 
    Rating:
    100%
    from S$28.99
    Min. 2 days
  5. BS rack
    KYOUIKU GEAR MFG BS rack
    Type  Rack  Material  Brass 
    from S$19.99
    Min. 3 days
  6. KF Rack Gear
    KANA (KATAYAMA CHAIN) KF Rack Gear
    * Products with the F symbol on the rack number are finished on both ends.
    Type  Rack gear  Material  S45C  Accuracy  JIS N4 grade  Surface Treatment  Black dyed  Pressure Angle (°)  20  Heat Treatment  Normalizing  Tooth Type  Normal teeth  Surface Hardness  HS26~31 
    Rating:
    60%
    from S$44.99
    Min. 2 days
  7. CP rack and pinion
    KYOUIKU GEAR MFG CP rack and pinion
    Material  S45C  RoHS directive (corresponding to 10 substances)  Correspondence 
    from S$9.89
    Min. 2 days
  8. Rack Gear LRW On Double Ends
    AOKI SEIMITSU KOGYO Rack Gear LRW On Double Ends
    Specification  Both ends / processed  Material  S45C  Surface Treatment  Black dyed  Pressure Angle (°)  20  Tooth Type  Normal teeth  Accuracy Class  JIS N8 class (former JIS4 class)  Gear Surface Treatment  Cutting 
    Rating:
    80%
    from S$28.99
    Min. 6 days
  9. Sanko round rack (S45C)
    SANKO Sanko round rack (S45C)
    Material  S45C  Surface Treatment  Black dyed  Pressure Angle (°)  20  Heat Treatment  Straightening annealing  Tooth Type  Normal teeth  Accuracy Class  JIS N8 (former JIS4)  Tooth Surface Hardness  95HRB or less 
    from S$88.99
    Min. 9 days
  10. Both ends processing rack
    KHK Gears (Kohara Gear Industry) Both ends processing rack
    We have a wide variety of modules, lengths, etc., and they are inexpensive and versatile. Gears for power transmission.
    Material  S45C  2018 Trusco page  2 0120 
    from S$47.99
    Min. 3 days
  11. SRO round rack
    KHK Gears (Kohara Gear Industry) SRO round rack
    This is convenient when reciprocating the rack side.
    Type  Round rack  Material  S45C  Shape  R2  Surface Treatment  Black dyed  Pressure Angle (°)  20  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4  Tooth Surface Hardness  (95HRB or less)  Gear Surface Treatment  Cutting 
    from S$74.99
    Min. 2 days
  12. Lack polyacetal (blue)
    KYOUIKU GEAR MFG Lack polyacetal (blue)
    Material  Polyacetal  Pressure Angle (°)  20  RoHS directive (corresponding to 10 substances)  Correspondence 
    from S$89.99
    Min. 6 days
  13. S45C Rack
    KYOUIKU GEAR MFG S45C Rack
    Type  Rack  Material  S45C  RoHS directive (corresponding to 10 substances)  Correspondence 
    from S$29.99
    Min. 6 days
  14. SR rack
    KHK Gears (Kohara Gear Industry) SR rack
    We have a wide variety of modules, lengths, etc., and they are inexpensive and versatile.
    Type  Rack  Material  S45C  Shape  R1  Surface Treatment  Black dyed 
    Rating:
    100%
    from S$16.99
    Min. 8 days
  15. CP (circular pitch) rack
    KYOUIKU GEAR MFG CP (circular pitch) rack
    Type  Rack  RoHS directive (corresponding to 10 substances)  Correspondence 
    from S$28.99
    Min. 27 days
  16. Gear Racks with Bolt Holes (SRFD)
    KHK Gears (Kohara Gear Industry) Gear Racks with Bolt Holes (SRFD)
    Type  Mounting hole processing rack  Material  S45C  Shape  RD  Surface Treatment  Black dyed  Pressure Angle (°)  20  Heat Treatment  Straightening annealing  Tooth Type  Normal teeth  Accuracy Class  KHK R001 Grade 4  Tooth Surface Hardness  95HRB or less  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom 
    from S$229.90
    Min. 8 days
  17. Mounting hole processing rack module 1.5-6
    SANKO Mounting hole processing rack module 1.5-6
    Since both ends are processed and the mounting holes are processed, it is easier to install. * When connecting, use the matching rack gear method to match the pitch.
    Type  Mounting hole processing rack  Material  S45C equivalent  Surface Treatment  Black dyed  Pressure Angle (°)  20  Heat Treatment  Straightening annealing  Tooth Type  Normal teeth  Accuracy Class  JIS N9 class (former JIS class 5)  Tooth Surface Hardness  95HRB or less 
    from S$139.90
    Min. 7 days
  18. Gear Racks with Bolt Holes (SRFD)
    KHK Gears (Kohara Gear Industry) Gear Racks with Bolt Holes (SRFD)
    Type  Mounting hole processing rack  Material  S45C  Shape  RD  Surface Treatment  Black dyed  Pressure Angle (°)  20  Heat Treatment  Straightening annealing  Tooth Type  Normal teeth  Accuracy Class  KHK R001 Grade 4  Tooth Surface Hardness  95HRB or less  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom 
    from S$139.90
    Min. 12 days
  19. DRF / DRFD / DRFK Plastic Rack J Series
    KHK Gears (Kohara Gear Industry) DRF / DRFD / DRFK Plastic Rack J Series
    Type  Rack  Material  Polyacetal  Pressure Angle (°)  20° 
    from S$89.99
    Min. 31 days
  20. SURCPF CP stainless steel rack (both ends processed)
    KHK Gears (Kohara Gear Industry) SURCPF CP stainless steel rack (both ends processed)
    Adopting SUS304 as the material, it is most suitable for food machines that dislike the generation of rust.
    Type  Rack  Material  SUS304  Shape  RF 
    from S$199.90
    Min. 8 days
  21. PRF plastic rack (both ends)
    KHK Gears (Kohara Gear Industry) PRF plastic rack (both ends)
    MC nylon is used as the material, and it is lightweight and can be used without lubrication.
    Type  Rack  Material  MC901  Shape  RF 
    from S$239.90
    Min. 8 days
  22. SRFK Mounting Hole Processing Rack Module 0.5 J Series (Completed Type)
    KHK Gears (Kohara Gear Industry) SRFK Mounting Hole Processing Rack Module 0.5 J Series (Completed Type)
    * The additional engineering department is not re-black dyed.
    Type  Mounting hole processing rack  Material  S45C  Shape  RA  Number of Teeth  191  Module  0.5  Surface Treatment  Black dyed  Number of Holes  Pressure Angle (°)  20  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4 (equivalent)  Tooth Surface Hardness  95HRB or less  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom  Tooth Width B (mm)  Screw used  M3 
    from S$79.99
    Min. 9 days
  23. SRF Rack with Machined Both Ends
    KHK Gears (Kohara Gear Industry) SRF Rack with Machined Both Ends
    We have a wide variety of modules, lengths, etc., and they are inexpensive and versatile.
    Type  Rack  Material  S45C  Shape  RF  Surface Treatment  Black dyed 
    Rating:
    100%
    from S$38.99
    Min. 2 days
  24. SUS rack
    KYOUIKU GEAR MFG SUS rack
    Type  Rack  Material  SUS304  RoHS directive (corresponding to 10 substances)  Correspondence 
    from S$35.99
    Min. 6 days
  25. SRCP rack
    KHK Gears (Kohara Gear Industry) SRCP rack
    Please use it as a matching rack for both end surface processing racks.
    Type  Rack  Material  S45C  Shape  R1  Surface Treatment  Black dyed  Pressure Angle (°)  20  Heat Treatment  Straightening annealing  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4  Tooth Surface Hardness  95HRB or less  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom 
    from S$13.99
    Min. 14 days
  26. SRFK Mounting Hole Processing Rack Module 1 J Series (Completed Type)
    KHK Gears (Kohara Gear Industry) SRFK Mounting Hole Processing Rack Module 1 J Series (Completed Type)
    * The additional engineering department is not re-black dyed.
    Type  Mounting hole processing rack  Material  S45C  Shape  RA  Module  Surface Treatment  Black dyed  Pressure Angle (°)  20  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4 (equivalent)  Tooth Surface Hardness  95HRB or less  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom  Tooth Width B (mm)  10  Screw used  M4 
    from S$79.99
    Min. 9 days
  27. SRHF Rack with Machined Both Ends
    KHK Gears (Kohara Gear Industry) SRHF Rack with Machined Both Ends
    The helical rack has a large engagement rate and is effective as a countermeasure against noise and vibration.
    Type  Rack  Material  S45C  Surface Treatment  Black dyed 
    from S$199.90
    Min. 8 days
  28. STRCPF CP taper rack (both ends processed)
    KHK Gears (Kohara Gear Industry) STRCPF CP taper rack (both ends processed)
    By setting the opponent pinion with KTSCP, the amount of backlash can be adjusted arbitrarily.
    Type  Taper rack  Material  S45C  Shape  RF  Surface Treatment  Black dyed 
    from S$269.90
    Min. 8 days
  29. SRFD-HL Hardened rack J series
    KHK Gears (Kohara Gear Industry) SRFD-HL Hardened rack J series
    Material  S45C  Surface Treatment  Black dyed 
    from S$329.90
    Min. 7 days
  30. SURF Stainless Steel Rack (Both Ends Processed)
    KHK Gears (Kohara Gear Industry) SURF Stainless Steel Rack (Both Ends Processed)
    Adopting SUS304 as the material, it is most suitable for food machines that dislike the generation of rust.
    Type  Rack  Material  SUS304  Shape  RF 
    Rating:
    100%
    from S$359.90
    Min. 8 days
  31. SRCPF CP rack (both ends processed)
    KHK Gears (Kohara Gear Industry) SRCPF CP rack (both ends processed)
    We have a wide variety of pitches, lengths, etc., and they are inexpensive and versatile.
    Type  Rack  Material  S45C  Shape  RF  Surface Treatment  Black dyed 
    from S$49.99
    Min. 2 days
  32. SRH helical rack
    KHK Gears (Kohara Gear Industry) SRH helical rack
    The helical rack has a large engagement rate and is effective as a countermeasure against noise and vibration.
    Type  Helical rack  Material  S45C  Surface Treatment  Black dyed 
    from S$23.99
    Min. 8 days
  33. CP tempering rack J series (completed product type)
    KHK Gears (Kohara Gear Industry) CP tempering rack J series (completed product type)
    Type  Tempering rack  Material  SCM440  Shape  RD  Surface Treatment  Black dyed  Pressure Angle (°)  20  Heat Treatment  Tempering only  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4  Tooth Surface Hardness  225~285HB  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom 
    from S$179.90
    Min. 8 days
  34. KRG dental rack
    KHK Gears (Kohara Gear Industry) KRG dental rack
    It has excellent strength and wear resistance, and enables highly accurate linear motion.
    Type  Dental rack  Material  SCM440  Shape  R1 
    from S$99.90
    Min. 8 days
  35. SRFK mounting hole processing rack module 0.8 J series (completed product type)
    KHK Gears (Kohara Gear Industry) SRFK mounting hole processing rack module 0.8 J series (completed product type)
    * The additional engineering department is not re-black dyed.
    Type  Mounting hole processing rack  Material  S45C  Shape  RA  Number of Teeth  119  Module  0.8  Surface Treatment  Black dyed  Number of Holes  Pressure Angle (°)  20  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4 (equivalent)  Tooth Surface Hardness  95HRB or less  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom  Tooth Width B (mm)  Screw used  M4 
    from S$89.99
    Min. 8 days
  36. SUR Stainless rack
    KHK Gears (Kohara Gear Industry) SUR Stainless rack
    Adopting SUS304 as the material, it is most suitable for food machines that dislike the generation of rust.
    Type  Rack  Material  SUS304  Shape  R1 
    from S$149.90
    Min. 2 days
  37. SRFD mounting hole processing rack module 1.5 J series (completed product type)
    KHK Gears (Kohara Gear Industry) SRFD mounting hole processing rack module 1.5 J series (completed product type)
    * The additional engineering department is not re-black dyed.
    Type  Mounting hole processing rack  Material  S45C  Shape  RD  Module  1.5  Surface Treatment  Black dyed  Pressure Angle (°)  20  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4 (equivalent)  Tooth Surface Hardness  95HRB or less  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom  Tooth Width B (mm)  15  Screw used  M5 
    from S$88.99
    Min. 8 days
  38. Mounting hole processing rack
    KHK Gears (Kohara Gear Industry) Mounting hole processing rack
    We have a wide variety of modules, lengths, etc., and they are inexpensive and versatile. It is a finished product with mounting holes. Gears for power transmission.
    Material  S45C  Shape  RD  2018 Trusco page  2 0120 
    from S$149.90
    Min. 2 days
  39. KRGCPF CP grinding rack (both side machining)
    KHK Gears (Kohara Gear Industry) KRGCPF CP grinding rack (both side machining)
    It has excellent strength and wear resistance, and can be used for highly accurate positioning.
    Type  Dental rack  Material  SCM440  Shape  RF 
    from S$749.90
    Min. 8 days
  40. European size rack
    KHK Gears (Kohara Gear Industry) European size rack
    Type  Rack  Material  S45C  Shape  RF  Surface Treatment  Black dyed  Pressure Angle (°)  20  Heat Treatment  None  Tooth Type  Normal teeth  Accuracy Class  KHK R 001 Grade 4  Tooth Surface Hardness  95HRB or less  Gear Surface Treatment  Cutting  Gear Cutting Reference Plane  Bottom 
    from S$76.99
    Min. 8 days
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