Shandong KYJEN Bearing Co.,Ltd

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Deep groove ball bearings

Single row Open type

60 Series

62 Series

63 Series

64 Series

67 Series

68 Series

69 Series

160 Series

Single row Shields seals type

68/Z,ZZ,RS,2RS Series

69/Z,ZZ,RS,2RS Series

60/Z,ZZ,RS,2RS,2RD,2RK Series

62/Z,ZZ,RS,2RS,2RD,2RK Series

63/Z,ZZ,RS,2RS,2RD,2RK Series

Single row With snap groove snap ring and shields

68/N,NR,ZNR Series

69/N,NR,ZNR Series

60/N,NR,ZNR Series

62/N,NR,ZNR Series

63/N,NR,ZNR Series

Miniature ball bearings Open type

67 Series

68 Series

69 Series

60 Series

62 Series

Miniature ball bearings Shields type

67/Z,ZZ Series

68/Z,ZZ Series

69/Z,ZZ Series

60/Z,ZZ Series

62/Z,ZZ Series

MR Series

Miniature ball bearings Flange type with shields

F67/Z,ZZ Series

F68/Z,ZZ Series

F69/Z,ZZ Series

F60/Z,ZZ Series

F62,Z,ZZ Series

Inch size ball bearings Open type

16 Series

R Series

RLS Series

RMS Series

Inch size ball bearings Shields & Seals type

16/Z,ZZ,RS,2RS,2RD,2RK Series

R/Z,ZZ,2RS,2RD,2RK Series

RLS/Z,ZZ,2RS,2RD,2RK Series

RMS/Z,ZZ,2RS,2RD,2RK Series

Inch size ball bearings With snap groove, snap ring and shields

16/N,NR,ZNR Series

R/N,NR,ZNR Series

RLS N,NR,ZNR Series

RMS/N,NR,ZNR Series

Inch size miniature ball bearings Open type

16 Series

R Series

Inch size miniature ball bearings Shields type

16/Z,ZZ Series

R/Z,ZZ Series

Inch size miniature ball bearings Flange type with shields

F16/Z,ZZ Series

FR/Z,ZZ Series

Self-aligning ball bearings

Open type

12K Series

22K Series

13K Series

23K Series

Sealed type

Angular Contact Ball Bearings

Single Row

Single row 79 Series

Single row 70 Series

Single row 72 Series

Single row 72B Series

Single row 73 Series

Single row 73B Series

Single Row Series Duples Arrangement DB Series

Single Row Series Duples Arrangement DF Series

Single Row Series Duples Arrangement DT Series

High Speed Use Series Single row

Single row 78C Series

Single row 79C Series

Single row 72C Series

Single row 70C Series

Single row 73C Series

Single Row Series Duples Arrangement DB Series

Single Row Series Duples Arrangement DF Series

Single Row Series Duples Arrangement DT Series

Double row

52 Series

53 Series

52/2RS,ZZ Series

53/2RS,ZZ Series

High Presion Spindle Bearings

B Series

HCB Series

HSS Series

HCS Series

Tapered roller bearings

Single row metric size Tapered roller bearings

Single row inch size tapered roller bearings

Tapered roller bearing with single seals

Double row taper roller bearing

Double row taper roller bearing inch Series

Matched taper roller bearing

Four row taper roller bearing

Four row taper roller bearing inch Series

Spherical roller bearings

239 Series

230 Series

240 Series

231 Series

241 Series

222 Series

232 Series

213 Series

223 Series

292 Series

293 Series

294 Series

BS Series

SB Series

Cylindrical roller thrust bearings

893 Series

811 Series

812 Series

Cylindrical Roller Bearings

NNJNUNUP Single row cylindrical roller bearings

NJNCF-V Single row Ccylindrical roller bearings

Single row full complement cylindrical roller bearings

NN Double row cylindrical roller bearings

Double row rull complement cylindrical roller bearings

Fow row cylindrical roller bearings

Single row full complement cylindrical roller bearings without outer ring - RN series

Double row full complement cylindrical roller bearings without outer ring - RNN series

Plummer block

SN500 Series

SN200 Series

SSN500 Series

SN600 Series

SN300 Series

1500 Series

S3000K Series

SN3000 Series

SSN3000 Series

SN3100 Series

SSN3100 Series

SD3100 Series

SD3000 Series

SD600 Series

SNU500 Series

SNG500 Series

SD500 Series

SNU600 Series

Spherical plain bearings

Radial spherical plain bearings Maintenance type

GE...E Series

GE...ES Series

GE...ES-2RS Series

GEG...E Series

GEG...ES Series

GEG...ES-2RS Series

GEEW...ES Series

GEEM...ES-2RS Series

GEF...ES Series

GE...XS/K Series

GEZ...ES Series

GEZ...ES-2RS Series

GEWZ...ES Series

GEWZ...ES-2RS Series

GEGZ...ES Series

GEGZ...ES-2RS Series

GEC...XS Series

GEBK...S Series

GEFZ...S Series

Radial spherical plain bearings Maintenance-free type

GE...C Series

GEG...C Series

GEFZ...C Series

GE...ET-2RS Series

GE...XT-2RS Series

GEG...ET-2RS Series

GEG...XT-2RS Series

GEZ...ET-2RS Series

GEH...XT Series

GEH...XT-2RS Series

GEC...XT Series

GEH...HC Series

GEH...HT Series

Angular contact spherical plain bearings

GAC...S Series

GAC...T Series

GACZ...S Series

Spherical plain thrust bearings

GX...S Series

GX...T Series

Rod end

SI...E Series

SI...ES Series

SA...E Series

SA...ES Series

SIBP...S Series

SABP...S Series

SIZP...S Series

SAZP...S Series

SIZJ Series

SAZJ Series

SI...C Series

SI...ET-2RS Series

SA...C Series

SA...ET-2RS Series

SIJK...C Series

SAJK...C Series

SK...E Series

SK...ES Series

SF...ES Series

SIR...ES Series

SIGEW...ES Series

Ball joint rod ends

SQ...RS Series

SQZ...RS Series

SQD Series

Automotive Bearings

Double row angular contact ball bearings

DAC Series

Cylindrical roller bearings

Cylindrical roller bearings

Rear wheel repair bearings

Rear wheel repair bearings

Front wheel drive hub and bearing assembly

Front wheel drive hub and bearing assembly

AG bearings

Round bore and spherical O.D. type

Square bore and spherical O.D

Round bore and cylindrical O.D.

Square bore and cylindrical O.D

Flanged disc units-round bore

Flanged disc units-square bore

Special size

Thrust Ball Bearings

Double Direction Thrust Ball Bearing With Spherical Outer Ring

Double Direction Thrust Ball Bearings

Single Direction Thrust Ball Bearings With Spherical Outer Ring

Single Direction Thrust Ball Bearings

Insert Bearings

HC2 Series

HC3 Series

SA2 Series

SB2 Series

UC2 Series

UC3 Series

UCX Series

UK2 Series

UK3 Series

Four row taper roller bearing inch Series

3D 实物图

3D CAD图

Product Parameters

Bearing Number M257248DW/M257210/M257210D
Boundary dimensions(mm)

d 304.902

D 412.648

T 266.7

B 128.588

rmin 3.2

r1min 3.2
Limit speed （r/min）

Cr 2704

C0r 7788
Mass(Kg) 103.9

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