• KOYO KM Stud Type Track Rollers / Cam Followers (Caged)
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KOYO KM Stud Type Track Rollers / Cam Followers (Caged)

KOYO KM Stud Type Track Rollers / Cam Followers (Caged)

KM stud type track rollers (cam followers), caged design, with cylindrical (M) or crowned (RM) outer ring, without seals or with seals (UUM, UURM). Outer diameter 13 to 90 mm.

Key features

  • Thick outer ring rolls directly on tracks and cams
  • Cylindrical (M) or crowned R500 (RM) outer ring
  • Sealed versions UUM / UURM
  • Threaded stud with hexagon or slot for mounting
  • Track roller load ratings and track capacity listed

Specifications

Product type Stud type track roller (cam follower)
Design Caged
Outer ring Cylindrical or crowned (R500 mm)
Seals Without (M, RM) / with (UUM, UURM)
Source KOYO Ball & Roller Bearings catalogue (Bearing specification tables), p. B452-B453
KM5M D: 13 mm | C: 9 mm | Stud d: 5 mm | L: 23 mm | Cr: 2.65 kN | Mass: 0.010 kg
KM5RM D: 13 mm | C: 9 mm | Stud d: 5 mm | L: 23 mm | Cr: 2.65 kN | Mass: 0.010 kg
KM5UUM D: 13 mm | C: 9 mm | Stud d: 5 mm | L: 23 mm | Cr: 2.65 kN | Mass: 0.010 kg
KM5UURM D: 13 mm | C: 9 mm | Stud d: 5 mm | L: 23 mm | Cr: 2.65 kN | Mass: 0.010 kg
KM6M D: 16 mm | C: 11 mm | Stud d: 6 mm | L: 28 mm | Cr: 4.10 kN | Mass: 0.018 kg
KM6RM D: 16 mm | C: 11 mm | Stud d: 6 mm | L: 28 mm | Cr: 4.10 kN | Mass: 0.018 kg
KM6UUM D: 16 mm | C: 11 mm | Stud d: 6 mm | L: 28 mm | Cr: 4.10 kN | Mass: 0.018 kg
KM6UURM D: 16 mm | C: 11 mm | Stud d: 6 mm | L: 28 mm | Cr: 4.10 kN | Mass: 0.018 kg
KM8M D: 19 mm | C: 11 mm | Stud d: 8 mm | L: 32 mm | Cr: 4.55 kN | Mass: 0.028 kg
KM8RM D: 19 mm | C: 11 mm | Stud d: 8 mm | L: 32 mm | Cr: 4.55 kN | Mass: 0.028 kg
KM8UUM D: 19 mm | C: 11 mm | Stud d: 8 mm | L: 32 mm | Cr: 4.55 kN | Mass: 0.028 kg
KM8UURM D: 19 mm | C: 11 mm | Stud d: 8 mm | L: 32 mm | Cr: 4.55 kN | Mass: 0.028 kg
KM10M D: 22 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.043 kg
KM10RM D: 22 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.043 kg
KM10UUM D: 22 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.043 kg
KM10UURM D: 22 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.043 kg
KM10-1M D: 26 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.055 kg
KM10-1RM D: 26 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.055 kg
KM10-1UUM D: 26 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.055 kg
KM10-1UURM D: 26 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.055 kg
KM12M D: 30 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.087 kg
KM12RM D: 30 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.087 kg
KM12UUM D: 30 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.087 kg
KM12UURM D: 30 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.087 kg
KM12-1M D: 32 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.096 kg
KM12-1RM D: 32 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.096 kg
KM12-1UUM D: 32 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.096 kg
KM12-1UURM D: 32 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.096 kg
KM16M D: 35 mm | C: 18 mm | Stud d: 16 mm | L: 52 mm | Cr: 13.0 kN | Mass: 0.166 kg
KM16RM D: 35 mm | C: 18 mm | Stud d: 16 mm | L: 52 mm | Cr: 13.0 kN | Mass: 0.166 kg
KM16UUM D: 35 mm | C: 18 mm | Stud d: 16 mm | L: 52 mm | Cr: 13.0 kN | Mass: 0.166 kg
KM16UURM D: 35 mm | C: 18 mm | Stud d: 16 mm | L: 52 mm | Cr: 13.0 kN | Mass: 0.166 kg
KM18M D: 40 mm | C: 20 mm | Stud d: 18 mm | L: 58 mm | Cr: 15.9 kN | Mass: 0.245 kg
KM18RM D: 40 mm | C: 20 mm | Stud d: 18 mm | L: 58 mm | Cr: 15.9 kN | Mass: 0.245 kg
KM18UUM D: 40 mm | C: 20 mm | Stud d: 18 mm | L: 58 mm | Cr: 15.9 kN | Mass: 0.245 kg
KM18UURM D: 40 mm | C: 20 mm | Stud d: 18 mm | L: 58 mm | Cr: 15.9 kN | Mass: 0.245 kg
KM20M D: 47 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.387 kg
KM20RM D: 47 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.387 kg
KM20UUM D: 47 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.387 kg
KM20UURM D: 47 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.387 kg
KM20-1M D: 52 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.453 kg
KM20-1RM D: 52 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.453 kg
KM20-1UUM D: 52 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.453 kg
KM20-1UURM D: 52 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.453 kg
KM24M D: 62 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 0.801 kg
KM24RM D: 62 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 0.801 kg
KM24UUM D: 62 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 0.801 kg
KM24UURM D: 62 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 0.801 kg
KM24-1M D: 72 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 1.04 kg
KM24-1RM D: 72 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 1.04 kg
KM24-1UUM D: 72 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 1.04 kg
KM24-1UURM D: 72 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 1.04 kg
KM30M D: 80 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.62 kg
KM30RM D: 80 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.62 kg
KM30UUM D: 80 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.62 kg
KM30UURM D: 80 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.62 kg
KM30-1M D: 85 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.79 kg
KM30-1RM D: 85 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.79 kg
KM30-1UUM D: 85 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.79 kg
KM30-1UURM D: 85 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.79 kg
KM30-2M D: 90 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.98 kg
KM30-2RM D: 90 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.98 kg
KM30-2UUM D: 90 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.98 kg
KM30-2UURM D: 90 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.98 kg
Track RollersKOYO
64 product codes available in this family
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KOYO KM Stud Type Track Rollers / Cam Followers (Caged)

Brand KOYO·Track Rollers

Available part numbers (64)

KM5M, KM5RM, KM5UUM, KM5UURM, KM6M, KM6RM, KM6UUM, KM6UURM, KM8M, KM8RM + 54 more — see full table ↓

How to order

Send the KOYO part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
KM5MD: 13 mm | C: 9 mm | Stud d: 5 mm | L: 23 mm | Cr: 2.65 kN | Mass: 0.010 kg
KM5RMD: 13 mm | C: 9 mm | Stud d: 5 mm | L: 23 mm | Cr: 2.65 kN | Mass: 0.010 kg
KM5UUMD: 13 mm | C: 9 mm | Stud d: 5 mm | L: 23 mm | Cr: 2.65 kN | Mass: 0.010 kg
KM5UURMD: 13 mm | C: 9 mm | Stud d: 5 mm | L: 23 mm | Cr: 2.65 kN | Mass: 0.010 kg
KM6MD: 16 mm | C: 11 mm | Stud d: 6 mm | L: 28 mm | Cr: 4.10 kN | Mass: 0.018 kg
KM6RMD: 16 mm | C: 11 mm | Stud d: 6 mm | L: 28 mm | Cr: 4.10 kN | Mass: 0.018 kg
KM6UUMD: 16 mm | C: 11 mm | Stud d: 6 mm | L: 28 mm | Cr: 4.10 kN | Mass: 0.018 kg
KM6UURMD: 16 mm | C: 11 mm | Stud d: 6 mm | L: 28 mm | Cr: 4.10 kN | Mass: 0.018 kg
KM8MD: 19 mm | C: 11 mm | Stud d: 8 mm | L: 32 mm | Cr: 4.55 kN | Mass: 0.028 kg
KM8RMD: 19 mm | C: 11 mm | Stud d: 8 mm | L: 32 mm | Cr: 4.55 kN | Mass: 0.028 kg
KM8UUMD: 19 mm | C: 11 mm | Stud d: 8 mm | L: 32 mm | Cr: 4.55 kN | Mass: 0.028 kg
KM8UURMD: 19 mm | C: 11 mm | Stud d: 8 mm | L: 32 mm | Cr: 4.55 kN | Mass: 0.028 kg
KM10MD: 22 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.043 kg
KM10RMD: 22 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.043 kg
KM10UUMD: 22 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.043 kg
KM10UURMD: 22 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.043 kg
KM10-1MD: 26 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.055 kg
KM10-1RMD: 26 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.055 kg
KM10-1UUMD: 26 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.055 kg
KM10-1UURMD: 26 mm | C: 12 mm | Stud d: 10 mm | L: 36 mm | Cr: 6.25 kN | Mass: 0.055 kg
KM12MD: 30 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.087 kg
KM12RMD: 30 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.087 kg
KM12UUMD: 30 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.087 kg
KM12UURMD: 30 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.087 kg
KM12-1MD: 32 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.096 kg
KM12-1RMD: 32 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.096 kg
KM12-1UUMD: 32 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.096 kg
KM12-1UURMD: 32 mm | C: 14 mm | Stud d: 12 mm | L: 40 mm | Cr: 8.20 kN | Mass: 0.096 kg
KM16MD: 35 mm | C: 18 mm | Stud d: 16 mm | L: 52 mm | Cr: 13.0 kN | Mass: 0.166 kg
KM16RMD: 35 mm | C: 18 mm | Stud d: 16 mm | L: 52 mm | Cr: 13.0 kN | Mass: 0.166 kg
KM16UUMD: 35 mm | C: 18 mm | Stud d: 16 mm | L: 52 mm | Cr: 13.0 kN | Mass: 0.166 kg
KM16UURMD: 35 mm | C: 18 mm | Stud d: 16 mm | L: 52 mm | Cr: 13.0 kN | Mass: 0.166 kg
KM18MD: 40 mm | C: 20 mm | Stud d: 18 mm | L: 58 mm | Cr: 15.9 kN | Mass: 0.245 kg
KM18RMD: 40 mm | C: 20 mm | Stud d: 18 mm | L: 58 mm | Cr: 15.9 kN | Mass: 0.245 kg
KM18UUMD: 40 mm | C: 20 mm | Stud d: 18 mm | L: 58 mm | Cr: 15.9 kN | Mass: 0.245 kg
KM18UURMD: 40 mm | C: 20 mm | Stud d: 18 mm | L: 58 mm | Cr: 15.9 kN | Mass: 0.245 kg
KM20MD: 47 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.387 kg
KM20RMD: 47 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.387 kg
KM20UUMD: 47 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.387 kg
KM20UURMD: 47 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.387 kg
KM20-1MD: 52 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.453 kg
KM20-1RMD: 52 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.453 kg
KM20-1UUMD: 52 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.453 kg
KM20-1UURMD: 52 mm | C: 24 mm | Stud d: 20 mm | L: 66 mm | Cr: 21.3 kN | Mass: 0.453 kg
KM24MD: 62 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 0.801 kg
KM24RMD: 62 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 0.801 kg
KM24UUMD: 62 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 0.801 kg
KM24UURMD: 62 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 0.801 kg
KM24-1MD: 72 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 1.04 kg
KM24-1RMD: 72 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 1.04 kg
KM24-1UUMD: 72 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 1.04 kg
KM24-1UURMD: 72 mm | C: 29 mm | Stud d: 24 mm | L: 80 mm | Cr: 31.6 kN | Mass: 1.04 kg
KM30MD: 80 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.62 kg
KM30RMD: 80 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.62 kg
KM30UUMD: 80 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.62 kg
KM30UURMD: 80 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.62 kg
KM30-1MD: 85 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.79 kg
KM30-1RMD: 85 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.79 kg
KM30-1UUMD: 85 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.79 kg
KM30-1UURMD: 85 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.79 kg
KM30-2MD: 90 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.98 kg
KM30-2RMD: 90 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.98 kg
KM30-2UUMD: 90 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.98 kg
KM30-2UURMD: 90 mm | C: 35 mm | Stud d: 30 mm | L: 100 mm | Cr: 55.8 kN | Mass: 1.98 kg

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