• NTN MR Inch Machined-Ring Needle Roller Bearings, without Inner Ring
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NTN MR Inch Machined-Ring Needle Roller Bearings, without Inner Ring

NTN MR Inch Machined-Ring Needle Roller Bearings, without Inner Ring

NTN MR inch-series machined-ring needle roller bearings without inner ring, size range 15.875-234.95 mm.

Key features

  • Inch boundary dimensions (shown in mm)
  • Machined outer ring with needle roller and cage assembly
  • Runs directly on a hardened shaft
  • Suited to heavy radial loads in compact space

Specifications

Series MR
Bearing type Machined-ring needle roller bearing
Size range 15.875-234.95 mm
Load rating unit kN
Brand NTN
Source NTN NTN Machined Ring Needle Roller Bearings catalogue, p. B-86-B-91
MR101812 Fw: 15.875 mm | D: 28.575 mm | C: 19.05 mm | Cr: 16.7 kN | C0r: 16.7 kN | Mass: 0.05 kg
MR101816 Fw: 15.875 mm | D: 28.575 mm | C: 25.4 mm | Cr: 21.5 kN | C0r: 23 kN | Mass: 0.068 kg
MR122012 Fw: 19.05 mm | D: 31.75 mm | C: 19.05 mm | Cr: 19.5 kN | C0r: 21.1 kN | Mass: 0.055 kg
MR122016 Fw: 19.05 mm | D: 31.75 mm | C: 25.4 mm | Cr: 25 kN | C0r: 29.1 kN | Mass: 0.073 kg
MR142212 Fw: 22.225 mm | D: 34.925 mm | C: 19.05 mm | Cr: 21.9 kN | C0r: 25.6 kN | Mass: 0.059 kg
MR142216 Fw: 22.225 mm | D: 34.925 mm | C: 25.4 mm | Cr: 28.2 kN | C0r: 35.5 kN | Mass: 0.082 kg
MR162412 Fw: 25.4 mm | D: 38.1 mm | C: 19.05 mm | Cr: 23 kN | C0r: 28.1 kN | Mass: 0.068 kg
MR162416 Fw: 25.4 mm | D: 38.1 mm | C: 25.4 mm | Cr: 29.5 kN | C0r: 38.5 kN | Mass: 0.091 kg
MR182616 Fw: 28.575 mm | D: 41.275 mm | C: 25.4 mm | Cr: 32.5 kN | C0r: 45 kN | Mass: 0.1 kg
MR182620 Fw: 28.575 mm | D: 41.275 mm | C: 31.75 mm | Cr: 40.5 kN | C0r: 60 kN | Mass: 0.127 kg
MR202816 Fw: 31.75 mm | D: 44.45 mm | C: 25.4 mm | Cr: 35 kN | C0r: 51 kN | Mass: 0.109 kg
MR202820 Fw: 31.75 mm | D: 44.45 mm | C: 31.75 mm | Cr: 43.5 kN | C0r: 68 kN | Mass: 0.136 kg
MR223016 Fw: 34.925 mm | D: 47.625 mm | C: 25.4 mm | Cr: 37 kN | C0r: 57.5 kN | Mass: 0.118 kg
MR223020 Fw: 34.925 mm | D: 47.625 mm | C: 31.75 mm | Cr: 46.5 kN | C0r: 76.5 kN | Mass: 0.15 kg
MR243316 Fw: 38.1 mm | D: 52.388 mm | C: 25.4 mm | Cr: 41 kN | C0r: 61 kN | Mass: 0.143 kg
MR243320 Fw: 38.1 mm | D: 52.388 mm | C: 31.75 mm | Cr: 51 kN | C0r: 81.5 kN | Mass: 0.18 kg
MR263516 Fw: 41.275 mm | D: 55.562 mm | C: 25.4 mm | Cr: 43.5 kN | C0r: 68 kN | Mass: 0.153 kg
MR263520 Fw: 41.275 mm | D: 55.562 mm | C: 31.75 mm | Cr: 54.5 kN | C0r: 90.5 kN | Mass: 0.191 kg
MR283716 Fw: 44.45 mm | D: 58.738 mm | C: 25.4 mm | Cr: 44.5 kN | C0r: 72 kN | Mass: 0.163 kg
MR283720 Fw: 44.45 mm | D: 58.738 mm | C: 31.75 mm | Cr: 55.5 kN | C0r: 95.5 kN | Mass: 0.204 kg
MR303920 Fw: 47.625 mm | D: 61.912 mm | C: 31.75 mm | Cr: 59 kN | C0r: 105 kN | Mass: 0.216 kg
MR324116 Fw: 50.8 mm | D: 65.088 mm | C: 25.4 mm | Cr: 49.5 kN | C0r: 86 kN | Mass: 0.183 kg
MR324120 Fw: 50.8 mm | D: 65.088 mm | C: 31.75 mm | Cr: 62 kN | C0r: 114 kN | Mass: 0.227 kg
MR364824 Fw: 57.15 mm | D: 76.2 mm | C: 38.1 mm | Cr: 83.5 kN | C0r: 142 kN | Mass: 0.422 kg
MR364828 Fw: 57.15 mm | D: 76.2 mm | C: 44.45 mm | Cr: 97 kN | C0r: 173 kN | Mass: 0.493 kg
MR405224 Fw: 63.5 mm | D: 82.55 mm | C: 38.1 mm | Cr: 88 kN | C0r: 158 kN | Mass: 0.472 kg
MR405228 Fw: 63.5 mm | D: 82.55 mm | C: 44.45 mm | Cr: 102 kN | C0r: 191 kN | Mass: 0.533 kg
MR445616 Fw: 69.85 mm | D: 88.9 mm | C: 25.4 mm | Cr: 66 kN | C0r: 112 kN | Mass: 0.343 kg
MR445624 Fw: 69.85 mm | D: 88.9 mm | C: 38.1 mm | Cr: 92 kN | C0r: 173 kN | Mass: 0.504 kg
MR445628 Fw: 69.85 mm | D: 88.9 mm | C: 44.45 mm | Cr: 107 kN | C0r: 209 kN | Mass: 0.58 kg
MR486024 Fw: 76.2 mm | D: 95.25 mm | C: 38.1 mm | Cr: 96 kN | C0r: 188 kN | Mass: 0.558 kg
MR486028 Fw: 76.2 mm | D: 95.25 mm | C: 44.45 mm | Cr: 112 kN | C0r: 227 kN | Mass: 0.651 kg
MR526828 Fw: 82.55 mm | D: 107.95 mm | C: 44.45 mm | Cr: 134 kN | C0r: 240 kN | Mass: 1.02 kg
MR526832 Fw: 82.55 mm | D: 107.95 mm | C: 50.8 mm | Cr: 146 kN | C0r: 268 kN | Mass: 1.17 kg
MR567228 Fw: 88.9 mm | D: 114.3 mm | C: 44.45 mm | Cr: 141 kN | C0r: 264 kN | Mass: 1.08 kg
MR567232 Fw: 88.9 mm | D: 114.3 mm | C: 50.8 mm | Cr: 154 kN | C0r: 295 kN | Mass: 1.27 kg
MR607632 Fw: 95.25 mm | D: 120.65 mm | C: 50.8 mm | Cr: 162 kN | C0r: 320 kN | Mass: 1.28 kg
MR648032 Fw: 101.6 mm | D: 127 mm | C: 50.8 mm | Cr: 169 kN | C0r: 345 kN | Mass: 1.29 kg
MR688432 Fw: 107.95 mm | D: 133.35 mm | C: 50.8 mm | Cr: 172 kN | C0r: 360 kN | Mass: 1.36 kg
MR729636 Fw: 114.3 mm | D: 152.4 mm | C: 57.15 mm | Cr: 238 kN | C0r: 435 kN | Mass: 2.62 kg
MR729640 Fw: 114.3 mm | D: 152.4 mm | C: 63.5 mm | Cr: 260 kN | C0r: 485 kN | Mass: 2.91 kg
MR8010432 Fw: 127 mm | D: 165.1 mm | C: 50.8 mm | Cr: 227 kN | C0r: 425 kN | Mass: 2.53 kg
MR8010436 Fw: 127 mm | D: 165.1 mm | C: 57.15 mm | Cr: 250 kN | C0r: 480 kN | Mass: 2.87 kg
MR8010440 Fw: 127 mm | D: 165.1 mm | C: 63.5 mm | Cr: 273 kN | C0r: 535 kN | Mass: 3.19 kg
MR8811240 Fw: 139.7 mm | D: 177.8 mm | C: 63.5 mm | Cr: 285 kN | C0r: 585 kN | Mass: 3.46 kg
MR8811248 Fw: 139.7 mm | D: 177.8 mm | C: 76.2 mm | Cr: 345 kN | C0r: 740 kN | Mass: 4.16 kg
MR9211648 Fw: 146.05 mm | D: 184.15 mm | C: 76.2 mm | Cr: 360 kN | C0r: 775 kN | Mass: 4.3 kg
MR9612040 Fw: 152.4 mm | D: 190.5 mm | C: 63.5 mm | Cr: 310 kN | C0r: 630 kN | Mass: 3.74 kg
MR9612048 Fw: 152.4 mm | D: 190.5 mm | C: 76.2 mm | Cr: 375 kN | C0r: 800 kN | Mass: 4.49 kg
MR10412840 Fw: 165.1 mm | D: 203.2 mm | C: 63.5 mm | Cr: 325 kN | C0r: 680 kN | Mass: 4.02 kg
MR10412848 Fw: 165.1 mm | D: 203.2 mm | C: 76.2 mm | Cr: 390 kN | C0r: 870 kN | Mass: 4.82 kg
MR11614648 Fw: 184.15 mm | D: 231.775 mm | C: 76.2 mm | Cr: 435 kN | C0r: 915 kN | Mass: 7.36 kg
MR12415448 Fw: 196.85 mm | D: 244.475 mm | C: 76.2 mm | Cr: 455 kN | C0r: 990 kN | Mass: 7.8 kg
MR13216248 Fw: 209.55 mm | D: 257.175 mm | C: 76.2 mm | Cr: 475 kN | C0r: 1.06 kN | Mass: 8.36 kg
MR14017048 Fw: 222.25 mm | D: 269.875 mm | C: 76.2 mm | Cr: 495 kN | C0r: 1.14 kN | Mass: 8.81 kg
MR14817848 Fw: 234.95 mm | D: 282.575 mm | C: 76.2 mm | Cr: 510 kN | C0r: 1.21 kN | Mass: 9.27 kg
Needle Roller BearingsNTN
56 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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NTN MR Inch Machined-Ring Needle Roller Bearings, without Inner Ring

Brand NTN·Needle Roller Bearings

Available part numbers (56)

MR101812, MR101816, MR122012, MR122016, MR142212, MR142216, MR162412, MR162416, MR182616, MR182620 + 46 more — see full table ↓

How to order

Send the NTN 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
MR101812Fw: 15.875 mm | D: 28.575 mm | C: 19.05 mm | Cr: 16.7 kN | C0r: 16.7 kN | Mass: 0.05 kg
MR101816Fw: 15.875 mm | D: 28.575 mm | C: 25.4 mm | Cr: 21.5 kN | C0r: 23 kN | Mass: 0.068 kg
MR122012Fw: 19.05 mm | D: 31.75 mm | C: 19.05 mm | Cr: 19.5 kN | C0r: 21.1 kN | Mass: 0.055 kg
MR122016Fw: 19.05 mm | D: 31.75 mm | C: 25.4 mm | Cr: 25 kN | C0r: 29.1 kN | Mass: 0.073 kg
MR142212Fw: 22.225 mm | D: 34.925 mm | C: 19.05 mm | Cr: 21.9 kN | C0r: 25.6 kN | Mass: 0.059 kg
MR142216Fw: 22.225 mm | D: 34.925 mm | C: 25.4 mm | Cr: 28.2 kN | C0r: 35.5 kN | Mass: 0.082 kg
MR162412Fw: 25.4 mm | D: 38.1 mm | C: 19.05 mm | Cr: 23 kN | C0r: 28.1 kN | Mass: 0.068 kg
MR162416Fw: 25.4 mm | D: 38.1 mm | C: 25.4 mm | Cr: 29.5 kN | C0r: 38.5 kN | Mass: 0.091 kg
MR182616Fw: 28.575 mm | D: 41.275 mm | C: 25.4 mm | Cr: 32.5 kN | C0r: 45 kN | Mass: 0.1 kg
MR182620Fw: 28.575 mm | D: 41.275 mm | C: 31.75 mm | Cr: 40.5 kN | C0r: 60 kN | Mass: 0.127 kg
MR202816Fw: 31.75 mm | D: 44.45 mm | C: 25.4 mm | Cr: 35 kN | C0r: 51 kN | Mass: 0.109 kg
MR202820Fw: 31.75 mm | D: 44.45 mm | C: 31.75 mm | Cr: 43.5 kN | C0r: 68 kN | Mass: 0.136 kg
MR223016Fw: 34.925 mm | D: 47.625 mm | C: 25.4 mm | Cr: 37 kN | C0r: 57.5 kN | Mass: 0.118 kg
MR223020Fw: 34.925 mm | D: 47.625 mm | C: 31.75 mm | Cr: 46.5 kN | C0r: 76.5 kN | Mass: 0.15 kg
MR243316Fw: 38.1 mm | D: 52.388 mm | C: 25.4 mm | Cr: 41 kN | C0r: 61 kN | Mass: 0.143 kg
MR243320Fw: 38.1 mm | D: 52.388 mm | C: 31.75 mm | Cr: 51 kN | C0r: 81.5 kN | Mass: 0.18 kg
MR263516Fw: 41.275 mm | D: 55.562 mm | C: 25.4 mm | Cr: 43.5 kN | C0r: 68 kN | Mass: 0.153 kg
MR263520Fw: 41.275 mm | D: 55.562 mm | C: 31.75 mm | Cr: 54.5 kN | C0r: 90.5 kN | Mass: 0.191 kg
MR283716Fw: 44.45 mm | D: 58.738 mm | C: 25.4 mm | Cr: 44.5 kN | C0r: 72 kN | Mass: 0.163 kg
MR283720Fw: 44.45 mm | D: 58.738 mm | C: 31.75 mm | Cr: 55.5 kN | C0r: 95.5 kN | Mass: 0.204 kg
MR303920Fw: 47.625 mm | D: 61.912 mm | C: 31.75 mm | Cr: 59 kN | C0r: 105 kN | Mass: 0.216 kg
MR324116Fw: 50.8 mm | D: 65.088 mm | C: 25.4 mm | Cr: 49.5 kN | C0r: 86 kN | Mass: 0.183 kg
MR324120Fw: 50.8 mm | D: 65.088 mm | C: 31.75 mm | Cr: 62 kN | C0r: 114 kN | Mass: 0.227 kg
MR364824Fw: 57.15 mm | D: 76.2 mm | C: 38.1 mm | Cr: 83.5 kN | C0r: 142 kN | Mass: 0.422 kg
MR364828Fw: 57.15 mm | D: 76.2 mm | C: 44.45 mm | Cr: 97 kN | C0r: 173 kN | Mass: 0.493 kg
MR405224Fw: 63.5 mm | D: 82.55 mm | C: 38.1 mm | Cr: 88 kN | C0r: 158 kN | Mass: 0.472 kg
MR405228Fw: 63.5 mm | D: 82.55 mm | C: 44.45 mm | Cr: 102 kN | C0r: 191 kN | Mass: 0.533 kg
MR445616Fw: 69.85 mm | D: 88.9 mm | C: 25.4 mm | Cr: 66 kN | C0r: 112 kN | Mass: 0.343 kg
MR445624Fw: 69.85 mm | D: 88.9 mm | C: 38.1 mm | Cr: 92 kN | C0r: 173 kN | Mass: 0.504 kg
MR445628Fw: 69.85 mm | D: 88.9 mm | C: 44.45 mm | Cr: 107 kN | C0r: 209 kN | Mass: 0.58 kg
MR486024Fw: 76.2 mm | D: 95.25 mm | C: 38.1 mm | Cr: 96 kN | C0r: 188 kN | Mass: 0.558 kg
MR486028Fw: 76.2 mm | D: 95.25 mm | C: 44.45 mm | Cr: 112 kN | C0r: 227 kN | Mass: 0.651 kg
MR526828Fw: 82.55 mm | D: 107.95 mm | C: 44.45 mm | Cr: 134 kN | C0r: 240 kN | Mass: 1.02 kg
MR526832Fw: 82.55 mm | D: 107.95 mm | C: 50.8 mm | Cr: 146 kN | C0r: 268 kN | Mass: 1.17 kg
MR567228Fw: 88.9 mm | D: 114.3 mm | C: 44.45 mm | Cr: 141 kN | C0r: 264 kN | Mass: 1.08 kg
MR567232Fw: 88.9 mm | D: 114.3 mm | C: 50.8 mm | Cr: 154 kN | C0r: 295 kN | Mass: 1.27 kg
MR607632Fw: 95.25 mm | D: 120.65 mm | C: 50.8 mm | Cr: 162 kN | C0r: 320 kN | Mass: 1.28 kg
MR648032Fw: 101.6 mm | D: 127 mm | C: 50.8 mm | Cr: 169 kN | C0r: 345 kN | Mass: 1.29 kg
MR688432Fw: 107.95 mm | D: 133.35 mm | C: 50.8 mm | Cr: 172 kN | C0r: 360 kN | Mass: 1.36 kg
MR729636Fw: 114.3 mm | D: 152.4 mm | C: 57.15 mm | Cr: 238 kN | C0r: 435 kN | Mass: 2.62 kg
MR729640Fw: 114.3 mm | D: 152.4 mm | C: 63.5 mm | Cr: 260 kN | C0r: 485 kN | Mass: 2.91 kg
MR8010432Fw: 127 mm | D: 165.1 mm | C: 50.8 mm | Cr: 227 kN | C0r: 425 kN | Mass: 2.53 kg
MR8010436Fw: 127 mm | D: 165.1 mm | C: 57.15 mm | Cr: 250 kN | C0r: 480 kN | Mass: 2.87 kg
MR8010440Fw: 127 mm | D: 165.1 mm | C: 63.5 mm | Cr: 273 kN | C0r: 535 kN | Mass: 3.19 kg
MR8811240Fw: 139.7 mm | D: 177.8 mm | C: 63.5 mm | Cr: 285 kN | C0r: 585 kN | Mass: 3.46 kg
MR8811248Fw: 139.7 mm | D: 177.8 mm | C: 76.2 mm | Cr: 345 kN | C0r: 740 kN | Mass: 4.16 kg
MR9211648Fw: 146.05 mm | D: 184.15 mm | C: 76.2 mm | Cr: 360 kN | C0r: 775 kN | Mass: 4.3 kg
MR9612040Fw: 152.4 mm | D: 190.5 mm | C: 63.5 mm | Cr: 310 kN | C0r: 630 kN | Mass: 3.74 kg
MR9612048Fw: 152.4 mm | D: 190.5 mm | C: 76.2 mm | Cr: 375 kN | C0r: 800 kN | Mass: 4.49 kg
MR10412840Fw: 165.1 mm | D: 203.2 mm | C: 63.5 mm | Cr: 325 kN | C0r: 680 kN | Mass: 4.02 kg
MR10412848Fw: 165.1 mm | D: 203.2 mm | C: 76.2 mm | Cr: 390 kN | C0r: 870 kN | Mass: 4.82 kg
MR11614648Fw: 184.15 mm | D: 231.775 mm | C: 76.2 mm | Cr: 435 kN | C0r: 915 kN | Mass: 7.36 kg
MR12415448Fw: 196.85 mm | D: 244.475 mm | C: 76.2 mm | Cr: 455 kN | C0r: 990 kN | Mass: 7.8 kg
MR13216248Fw: 209.55 mm | D: 257.175 mm | C: 76.2 mm | Cr: 475 kN | C0r: 1.06 kN | Mass: 8.36 kg
MR14017048Fw: 222.25 mm | D: 269.875 mm | C: 76.2 mm | Cr: 495 kN | C0r: 1.14 kN | Mass: 8.81 kg
MR14817848Fw: 234.95 mm | D: 282.575 mm | C: 76.2 mm | Cr: 510 kN | C0r: 1.21 kN | Mass: 9.27 kg

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