Page 3 of Features of NTN Engineering Plastics by NTN Corporation Japan

standard series of ntn engineering plastics sliding bearings dimensions to be measured at 25°c dimension mm d2 9 10 11 12 15 17 19 24 29 34 type brf flanged sleeve bearing part no r-brf0304 r-brf0404 r-brf0505 r-brf0605 r-brf0806 r-brf1008 r-brf1208 r-brf1510 d tolerances d1 tolerances l tolerances 3 4 5 6 8 10 12 15 20 25 +0.21 +0.16 +0.22 +0.17 +0.22 +0.17 +0.22 +0.17 +0.26 +0.20 +0.27 +0.21 +0.28 +0.21 +0.30 +0.23 +0.31 +0.23 +0.32 +0.24 recommended fit mm minimum mounted t tolerances shaft h7 housing h7 clearance mm 1.5 1.5 1.5 1.5 2 2 2 3 3 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 3 -0.010 6 7 8 9 12 14 16 21 26 31 ltrd2 d d1 r-brf2012 r-brf2515 c +0.11 +0.06 +0.12 +0.06 +0.12 +0.06 +0.12 +0.06 +0.14 +0.07 +0.14 +0.07 +0.14 +0.07 +0.15 +0.07 +0.15 +0.07 +0.16 +0.08 4 4 5 5 6 8 8 10 12 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 +0.012 0 7 +0.015 0 8 9 12 14 16 21 26 31 +0.015 0 +0.015 0 +0.018 0 +0.018 0 +0.018 0 +0.021 0 +0.021 0 +0.025 0 0.05 0.05 0.05 0.05 0.06 0.07 0.07 0.08 0.08 0.08 4 5 6 8 10 12 15 20 25 0 -0.012 0 -0.012 0 -0.012 0 -0.015 0 -0.015 0 -0.018 0 -0.018 0 -0.021 0 -0.021 c 30 remarks 1 dimension of chamfer is 0.3 mm for 6mm or smaller bore and 0.5mm for 8 mm or larger bore 2 the corner radius of flange is 0.2 mm or smaller 3 use 1.5 10-7 mm3/n·em as a guide line for the specific wear rate k dimensions to be measured at 25°c type tw thrust washer part no r-tw0613 r-tw0715 r-tw0815 r-tw0920 r-tw1020 r-tw1225 r-tw1530 r-tw1735 r-tw2040 r-tw2245 d +0.25 0 dimension d 0 -0.25 mm t 0.06 6.2 7.2 8.2 9.2 10.2 12.2 15.3 17.3 20.4 22.4 25.4 28.4 30.4 32.4 35.6 40.6 45.6 50.8 -7 3 12.8 14.8 14.8 19.8 19.8 24.7 29.7 34.6 39.6 44.5 49.5 54.4 59.4 59.4 64.3 69.3 74.2 79.2 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 tddr-tw2550 r-tw2855 r-tw3060 r-tw3260 r-tw3565 r-tw4070 r-tw4575 r-tw5080 remark 1 use 1.0 10 mm /n·em as a guide line for the specific wear rate k 11

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