d 15-30-Jiangsu ZGOT Seiko Technology Co., Ltd.

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High precision turntable bearing

YRT Standard series

YRTS High speed series

YRTM Series

ZKLDF Series

Precision crossed roller bearing

RB Type

RE Type

RU Type

RA Type

CRBH Type

SX Series

RAU Type

RW Type

Harmonic reducer bearing

SHF (G) series

JXR-XR series

CSF (G) type

Precision slewing bearing

XSU Series

XSU

XSA Series

XSI Series

XU Series

XA Series

CRBT Series

Precision crossed tapered roller bearing

Metric Series

d 15-30

d 32-55

d 55-70

d 75-95

d 100-120

d 120-200

Imperial Series

d 15.875-28.575

d 28.575-38.000

d 38.100-41.275

d 42.875-50.000

d 50.800-54.991

d 55.000-66.675

d 68.262-76.200

d 76.200-101.600

d 101.600-200.000

Equal section thin-walled bearing

Open angular contact

KAA Series

KA Series

KB Series

KC Series

KD Series

KF Series

KG Series

Metric thickness 8mm series

Metric thickness 13mm series

Metric thickness 20mm series

Deep groove ball bearing

Open KAA series

Open KA series

Open KB series

Open KC series

Open KD series

Open KF series

Open KG series

Sealed JHA series

Sealed JA series

Sealed JB series

Sealed JU series

Sealed JG series

Metric open 8mm series

Metric seal 8mm series

Metric open 13mm series

Metric open 20mm series

Four point contact ball bearing

Open KAA series

Open KA series

Open KB series

Open KC series

Open KD series

Open KF series

Open KG series

Sealed JHA series

Sealed JA series

Sealed JB series

Sealed JU series

Sealed JG series

Metric open thickness 8mm series

Metric open thickness 13mm series

Metric open thickness 20mm series

Metric sealing thickness 8mm series

Metric BB series (replaceable crossed roller bearing)

Tapered roller bearing

Single row taper roller bearing(Metric)

d 20～30mm

d 32～40mm

d 42～50mm

d 50.8～60mm

d 60～65mm

d 70～75mm

d 75～90mm

d 90～100mm

d 100～120mm

d 120～150mm

d 150～180mm

d 190～254mm

d 255～400mm

d 400～1270mm

Single row taper roller bearing(Inch)

d 17.462～29mm

d 30～38.1mm

d 38.1～42.875mm

d 42.875～47.625mm

d 50～54.488mm

d 55～63.5mm

d 63.5～69.85mm

d 70～82.555mm

d 82.55～90mm

d 92.075～107.95mm

d 107.95～133.35mm

d 139.7～179.934mm

d 180～216.713mm

d 220.662～266.7mm

d 266.7～403.225mm

d 406.4～660.4mm

d 660.4～1016mm

Double row taper roller bearing(Metric)

d 40～85mm

d 85～120mm

d 130～160mm

d 160～190mm

d 200～240mm

d 240～300mm

d 300～339mm

d 340～400mm

d 400～480mm

d 482.6～635mm

d 650～1450mm

Double row taper roller bearing(Inch)

d 38.1～111.125mm

d 114.3～161mm

d 165.1～231.775mm

d 234.95～269.875mm

d 273.05～330.2mm

d 333.375～384.175mm

d 390～488.95mm

d 489.026～609.6mm

d 635～1562.1mm

d 1778～2616.2mm

Four row taper roller bearing(Metric)

d 139.7～240mm

d 240～340mm

d 340～420mm

d 420～480mm

d 482.6～650mm

d 650～1250mm

d 1260～1580mm

Four row taper roller bearing(Inch)

d 133.35～254mm

d 260.35～317.5mm

d 317.5～385.762mm

d 406.4～482.6mm

d 482.6～584.2mm

d 548.2～708.025mm

d 711.2～1139.825mm

d 1200.15～1346.2mm

Angular contact ball bearing

Angular conact ball bearing

d 10-17mm

d 17-30mm

d 30-45mm

d 45-60mm

d 65-80mm

d 80-95mm

d 95-110mm

d 110-160mm

d 160-280mm

d 280-380mm

Four point angular conact ball bearing

d 17-60mm

d 65-100mm

d 100-140mm

d 150-180mm

d 190-560mm

Double row angular conact ball bearing

with Double snap rings and shields d 10-55mm

with Double snap rings and shields d 60-110mm

with Snap goove, snap ring and shield d10-55mm

with Snap goove, snap ring and shield d 60-110mm

Double Row Angular Conact Ball Bearing d 45-190mm

Double Row Angular Conact Ball Bearing d 200-300mm

d 15-30

Product Parameters

Bearing number 30303R
Size series /
Boundary dimensionsmm

d 17

D 47

T 15.25

B 14

C 12

rmin. 1

r1 min. 1
Rated loadkN

Cr 27.4

Cor 24.5
Mounting hole sizemin-1

Grease lub. 9200

Oil lub. 12000
kg 0.127

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d 15-30

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