Page 7 of Bearing Units Plastic Housing Series by NTN Corporation Japan

stainless insert bearing cylindrical bore set screw type with solid grease c g ds solid grease rsddd4 s b s1 grease fill plan spot-pack type is standard shaft dia mm inch 20 4 25 16 8 16 1 30 1 16 1 8 1 16 1 4 35 1 4 1 16 1 8 1 16 40 1 2 1 16 nominal dimensions bearing number d f-uc204d1/lp03 f-uc204-012d1/lp03 f-uc205d1/lp03 f-uc205-013d1/lp03 f-uc205-014d1/lp03 f-uc205-015d1/lp03 f-uc205-100d1/lp03 f-uc206d1/lp03 f-uc206-101d1/lp03 f-uc206-102d1/lp03 f-uc206-103d1/lp03 f-uc206-104d1/lp03 f-uc207d1/lp03 f-uc207-104d1/lp03 f-uc207-105d1/lp03 f-uc207-106d1/lp03 f-uc207-107d1/lp03 f-uc208d1/lp03 f-uc208-108d1/lp03 f-uc208-109d1/lp03 mm inch basic load rating n dynamic lbf static mass ref d b c rs min 1 0.039 1 0.039 s 12.7 0.500 14.3 0.563 s1 18.3 0.720 19.8 0.780 g ds d4 kg lb 0.17 0.39 0.20 0.53 0.51 0.46 0.44 0.33 0.82 0.77 0.73 0.66 0.49 1.21 1.15 1.08 1.01 0.65 1.52 1.46 cr 9 900 2 220 10 800 2 430 cor 6 650 1 500 7 850 1 770 20 47 31 17 0.7500 1.8504 1.2205 0.6693 25 52 34.1 17 0.8125 0.8750 2.0472 1.3425 0.6693 0.9375 1.0000 30 62 38.1 19 1.0625 1.1250 2.4409 1.5000 0.7480 1.1875 1.2500 35 72 42.9 20 1.2500 1.3125 2.8346 1.6890 0.7874 1.3750 1.4375 40 80 49.2 21 1.5000 3.1496 1.9370 0.8268 1.5625 4.5 m5 0.8 29.6 0.177 no.10-32unf 1.1654 5 m5 0.8 33.9 0.197 no.10-32unf 1.3346 1 0.039 15.9 0.626 22.2 0.874 5 m6 0.75 40.8 1.6063 15 000 3 350 11 300 2 540 0.197 1/4-28unf 1.5 0.059 17.5 0.689 25.4 1.000 6 m6 0.75 46.8 1.8425 19 700 4 450 15 300 3 450 0.236 1/4-28unf 1.5 0.059 19 0.748 30.2 1.189 8 m8 1 53 2.0866 22 400 5 050 17 800 4 000 0.315 5/16-24unf note insert bearings can be supplled with usda qualified food grade grease the resulting grease suffix is l596 ex f-uc204 d1/l596 grease name caltex fm grease ep2 allowable temp range applications note 20 80°c food processing and general machines h-1 standard grease qualified by usda unit ball bearing tolerances jis b 1558 1 inner ring tolerances nominal bore diameter d over mm 18 inch mm incl inch unit m/0.0001 inch bore diameter width radial runout dmp vdp bs deviations variations deviations ref ref high 18 7 21 8 low 0 0 0 0 max 12 5 14 6 high 0 0 0 0 low 120 47 120 47 max 18 7 20 8 2 outer ring tolerances nominal outside diameter unit m/0.0001 inch radial runout ref max 20 8 25 10 d over mm 30 50 inch 1.1811 1.9685 mm 50 80 dm deviations high 0 0 0 0 low 11 4 13 5 incl inch 1.9685 3.1496 0.7087 31.750 1.2500 31.750 1.2500 50.800 2.0000 dmp mean bore diameter deviation vdp bore diameter variation bs inner ring width deviation dm mean outside diameter deviation the low deviation of outside diameter dm dose not apply within the distance of 1/4 the width of the outer ring from the side edge part of the dust cover bearing housing attaching the dust cover 1 insert the edge of the dust cover in the housing s groove 2 insert the other side of the dust cover in the opposite housing groove either by hand or with assistance of a plastic/rubber mallet /hammer 3 to remove the dust cover pry the edge from the housing groove using a screw driver or similar tool note frequent mounting/dismounting of the dust cover may damage the edge of the housing and is not recommended 6

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