7311BG 单列角接触球轴承 详细说明

一、型号释义

7：角接触球轴承

3：重系列（尺寸更大、承载更强）

11：内径代号，11×5=55mm

B：接触角 40°（大接触角，轴向承载强）

G：钢板冲压保持架

二、标准外形尺寸

内径：55 mm

外径：120 mm

厚度：29 mm

最小倒角半径：r=2 mm，r1=1 mm

重量：约 1.4 kg

三、结构配置

类型：单列角接触球轴承，开放式（无密封）

接触角：40°（B型），轴向承载能力强

滚动体：高精密GCr15轴承钢球，耐磨抗疲劳

保持架：钢板冲压保持架（G），高速稳定、成本低

精度等级：P0级（普通级），可选P5/P4精密级

四、轴承材质

内外圈及钢球采用GCr15高碳铬轴承钢，淬火回火处理，硬度HRC60–64；组织均匀、尺寸稳定、耐磨抗冲击，适配重载、中高速工况。

五、核心技术参数

基本额定动载荷Cr：79 kN

基本额定静载荷Cor：56.5 kN

极限转速：脂润滑5500 rpm，油润滑**7300 rpm

工作温度：-40 ℃ 至 120 ℃

六、使用特性

1. 承载能力强：40°大接触角，可同时承受大径向载荷+单向大轴向载荷，刚性好。

2. 重系列设计：73系列尺寸大、壁厚足，适配重载、冲击载荷工况。

3. 高速性能优：开放式散热好，钢板保持架轻量化，中高速运转稳定低噪。

4. 安装灵活：可**DB（背对背）、DF（面对面）、DT（串联）**成对安装，预紧后提升主轴刚性。

5. 耐用可靠：材质耐磨抗疲劳，适配恶劣工业环境，使用寿命长。

七、核心优势

大承载：40°接触角+重系列，径向/轴向承载双强

高刚性：壁厚足、结构稳，抗变形能力强

性价比高：钢板保持架，成本低、高速稳定

通用性强：国标尺寸，多品牌互换，拆装维护便捷

八、适用范围

工业减速机、大型电机、压缩机

泵阀、风机、冶金矿山机械

工程机械、注塑机、钻采设备

需承受重载、单向大轴向力的中高速回转部位

其他轴承型号：61800  61801  61802  61803  61804  61805  61806  61807  61808  61809  61810  61811  61812  61813  61814  61815  

61816  61817  61818  61819  61820  61821  61822  61824  61826  61828  61830  61832  61834  61836  61838  61840  61844  61848  

61852  61856  61860  61864  61868  61872  61876  61880  61884  61888  61892  61896  618/500  618/530  618/560  618/600  618/630  

618/670  618/710  618/750  618/800  618/850  618/900  618/950  618/1000  

61900  61901  61902  61903  61904  61905  61906  61907 61908  61909  61910  61911  61912  61913  61914  61915  61916  61917  

61918  61919  61920  61921  61922  61924  61926  61928   61930  61932 61934  61936  61938  61940  61944  61948  61952  61956  

61960  61964  61968  61972  61976  61980  61984  61988   61992  61996  619/500  619/530 619/560  619/630  619/670  619/710  

619/750  619/800  619/850  619/900 619/950  619/1000

16100  16000  16001  16002  16003  16004  16005  16006 16007  16008  16009  16010  16011  16012  16013  16014  16015  16016  

16017  16018  16019  16020  16021  16022  16024  16026  16028  16030  16032  16034  16036  16038  16040  16044  16048  16052  

16056  16060  16064  16068  16072  16076

 71805B 71806B 71807B 71808B 71810B 71812B 71814B 71816B 71817BV 71817BTN  71916/87 71917/89 718/89BTN LR20E 71818BTN

718/97B 71820BTN 71822BTN 71922/115 718/115 718/115E 718/115BV 71922/115BTN LR40E 718/129BTN 718/130BTN LR718/131BTN

71828BTN   718/140BTN  718/144BTN  718/144E  71830BTN  718/159BTN  718/168  718/168E  LR718/168BTN  71834BTN  718/182BTN

71840B   718/208BTN   718/230BTN  71848B  718/274BTN  718/320BTN  RVB25N  RVB20E/TL  RVB20E  RVB20E/FM  RVB42N   RVB40E

RVB40E/TL  RVB80N/FM RVB80E/TL  RVB125N/FM  RVB160N  RVB500N

71800 71801 71802 71803 71804 71805 71806 71807 71808 71809 71810 71811 71812 71813 71814 71815 71816 71817 71818 71819

71820 7182171822 71824 71826 71828 71830 71832 71834 71836 71838 71840 7184471848 71852 71856 71860 71864 71868 71872

71876 71880 71884 71888 71892  71896  718/500  718/530  718/560  718/600  718/630  718/670  718/710  718/750  718/800  718/850

718/900 718/950 718/1000

719/8 71900 71901 71902 71903 71904 71905 71906 71907 71908 71909 71910 71911 71912 71913 71914 71915 71916 71917 71918

71919 71920 71921 71922 71924 71926 71928 71930  71932 71934 71936 71938  71940 71944 71948 71952 71956 71960 71964 71968

71972 71976 71980 71984 71988 71992 71996 719/500 719/530 719/560 719/630 719/670 719/710 719/750 719/800 719/850 719/900

719/950 719/1000

KAA10AG0 KAA15AG0 KAA17AG0

KA020AR0 KA025AR0 KA030AR0 KA035AR0 KA040AR0 KA042AR0 KA045AR0 KA047AR0 KA050AR0 KA055AR0 KA060AR0 KA065AR0

KA070AR0 KA075AR0 KA080AR0 KA090AR0 KA100AR0 KA110AR0 KA120AR0

KB020AR0 KB025AR0 KB030AR0 KB035AR0 KB040AR0 KB042AR0 KB045AR0 KB047AR0 KB050AR0 KB055AR0 KB060AR0 KB065AR0  

KB070AR0 KB075AR0 KB080AR0 KB090AR0 KB100AR0 KB110AR0 KB120AR0 KB140AR0 KB160AR0 KB180AR0 KB200AR0

KC040AR0 KC042AR0 KC045AR0 KC047AR0 KC050AR0 KC055AR0 KC060ARO KC065AR0 KC070ARO KC075AR0 KC080AR0 KC090ARO

KC100AR0 KC110AR0 KC120AR0 KC140AR0 KC160AR0 KC180AR0 KC200AR0 KC250AR0 KC300AR0

KD040AR0 KD042AR0 KD045AR0 KD047AR0 KD050AR0 KD055AR0 KD060AR0 KD065AR0 KD070AR0 KD075AR0 KD080AR0 KD090AR0

KD100AR0 KD110AR0 KD120AR0 KD140AR0 KD160AR0 KD180AR0 KD200AR0 KD210AR0 KD250AR0 KD300AR0

KF040AR0 KF042AR0 KF045AR0 KF047AR0 KF050AR0 KF055AR0 KF060AR0 KF065AR0 KF070AR0 KF075AR0 KF080AR0 KF090AR0

KF100AR0 KF110AR0 KF120AR0 KF140AR0 KF160AR0 KF180AR0 KF200AR0 KF250AR0 KF300AR0 KF350AR0 KF400AR0

KG040AR0 KG042AR0 KG045AR0 KG047AR0 KG050AR0 KG055AR0 KG060AR0 KG065AR0 KG070AR0 KG075AR0 KG080AR0 KG090AR0

KG100AR0 KG110AR0 KG120AR0 KG140AR0 KG160AR0 KG180AR0 KG200AR0 KG220AR0 KG250AR0 KG300AR0 KG350AR0 KG400AR0

KAA10CLO KAA15CL0 KAA17CL0

KA020CP0 KA025CP0 KA030CP0 KA035CP0 KA040CP0 KA042CP0 KA045CP0 KA047CP0 KA050CP0 KA055CP0 KA060CP0 KA065CP0

KA070CP0 KA075CP0 KA080CP0 KA090CP0 KA100CP0 KA110CP0 KA120CP0

KB020CP0 KB025CP0 KB030CP0 KB035CP0 KB040CP0 KB042CP0 KB045CP0 KB047CP0 KB050CP0 KB055CP0 KB060CP0 KB065CP0

KB070CP0 KB075CP0 KB080CP0 KB090CP0 KB100CP0 KB110CP0 KB120CP0 KB140CP0 KB160CP0 KB180CP0 KB200CP0

KC040CP0 KC042CP0 KC045CP0 KC047CP0 KC050CP0 KC055CP0 KC060CP0 KC065CP0 KC070CP0 KC075CP0 KC080CP0 KC090CP0

KC100CP0 KC110CP0 KC120CP0 KC140CP0 KC160CP0 KC180CP0 KC200CP0 KC250CP0 KC300CP0

KD040CP0 KD042CP0 KD045CP0 KD047CP0 KD050CP0 KD055CP0 KD060CP0 KD065CP0 KD070CP0 KD075CP0 KD080CP0 KD090CP0

KD100CP0 KD110CP0 KD120CP0 KD140CP0 KD160CP0 KD180CP0 KD200CP0 KD210CP0 KD250CP0 KD300CP0

KF040CP0 KF042CP0 KF045CP0 KF047CP0 KF050CP0 KF055CP0 KF060CP0 KF065CP0 KF070CP0 KF075CP0 KF080CP0 KF090CP0

KF100CP0 KF110CP0 KF120CP0 KF140CP0 KF160CP0 KF180CP0 KF200CP0 KF250CP0 KF300CP0 KF350CP0 KF400CP0

KG040CP0 KG042CP0 KG045CP0 KG047CP0 KG050CP0 KG055CP0 KG060CP0 KG065CP0 KG070CP0 KG075CP0 KG080CP0 KG090CP0

KG100CP0 KG110CP0 KG120CP0 KG140CP0 KG160CP0 KG180CP0 KG200CP0 KG350CP0 KG220CP0 KG250CP0 KG300CP0 KG400CP0

KAA10XL0 KAA15XL0 KAA17XL0

KA020XP0 KA025XP0 KA030XP0 KA035XP0 KA040XP0 KA042XP0 KA045XP0 KA047XP0 KA050XP0 KA055XP0 KA060XP0 KA065XP0

KA070XP0 KA075XP0 KA080XP0 KA090XP0 KA100XP0 KA110XP0 KA120XP0

KB020XP0 KB025XP0 KB030XP0 KB035XP0 KB040XP0 KB042XP0 KB045XP0 KB047XP0 KB050XP0 KB055XP0 KB060XP0 KB065XP0

KB070XP0 KB075XP0 KB080XP0 KB090XP0 KB100XP0 KB110XP0 KB120XP0 KB140XP0 KB160XP0 KB180XP0 KB200XP0

KC040XP0 KC042XP0 KC045XP0 KC047XP0 KC050XP0 KC055XP0 KC060XP0 KC065XP0 KC070XP0 KC075XP0 KC080XP0 KC090XP0

KC100XP0 KC110XP0 KC120XP0 KC140XP0 KC160XP0 KC180XP0 KC200XP0 KC250XP0 KC300XP0

KD040XP0 KD042XP0 KD045XP0  KD047XP0 KD050XP0 KD055XP0 KD060XP0 KD065XP0 KD070XP0 KD075XP0 KD080XP0 KD090XP0

KD100XP0 KD110XP0 KD120XP0 KD140XP0 KD160XP0 KD180XP0 KD200XP0 KD210XP0 KD250XP0 KD300XP0

KF040XP0 KF042XP0 KF045XP0 KF047XP0 KF050XP0 KF055XP0 KF060XP0 KF065XP0 KF070XP0 KF075XP0 KF080XP0 KF090XP0

KF100XP0 KF110XP0 KF120XP0 KF140XP0 KF160XP0 KF180XP0 KF200XP0 KF250XP0 KF300XP0 KF350XP0 KF400XP0

KG040XP0 KG042XP0 KG045XP0 KG047XP0 KG050XP0 KG055XP0 KG060XP0 KG065XP0 KG070XP0 KG075XP0 KG080XP0 KG090XP0

KG100XP0 KG110XP0 KG120XP0 KG140XP0 KG160XP0 KG180XP0 KG200XP0 KG220XP0 KG250XP0 KG300XP0 KG350XP0KG400XP0

JHA10CL0 JHA15CL0 JHA17CL0

JA020CP0 JA025CP0 JA030CP0 JA035CP0 JA040CP0 JA042CP0 JA045CP0 JA047CP0 JA050CP0 JA055CP0 JA060CP0 JA065CP0

JB020CP0 JB025CP0 JB030CP0 JB035CP0 JB040CP0 JB042CP0 JB045CP0 JB047CP0 JB050CP0 JB055CP0 JB060CP0 JB065CP0

JU040CP0 JU042CP0 JU045CP0 JU047CP0 JU050CP0 JU055CP0 JU060CP0 JU065CP0 JU070CP0 JU075CP0 JU080CP0 JU090CP0

JU100CP0 JU110CP0 JU120CP0

JG07OCP0 JG075CP0 JG080CP0 JG090CP0 JG100CP0 JG110CP0 JG120CP0 JG140CP0 JG160CP0 JG180CP0 JG200CP0

JG220CP0 JG250CP0 JG300CP0 JG350CP0 JG400CP0

JHA10XL0 JHA15XL0 JHA17XL0

JA020XP0 JA025XP0 JA030XP0 JA035XP0 JA040XP0 JA042XP0 JA045XP0 JA047XP0 JA050XP0 JA055XP0 JA060XP0 JA065XP0

JB020XP0 JB025XP0 JB030XP0 JB035XP0 JB040XP0 JB042XP0 JB045XP0 JB047XP0 JB050XP0 JB055XP0 JB060XP0 JB065XP0

JU040XP0 JU042XP0 JU045XP0 JU047XP0 JU050XP0 JU055XP0 JU060XP0 JU065XP0 JU070XP0 JU075XP0 JU080XP0 JU090XP0 JU100XP0

JU110XP0 JU120XP0

JG070XP0 JG075XP0 JG080XP0 JG090XP0 JG100XP0 JG110XP0 JG120XP0 JG140XP0 JG160XP0 JG180XP0 JG200XP0 JG220XP0 JG250XP0

JG300XP0 JG350XP0 JG400XP0

K02508CP0 K05008CP0 K06008CP0 K07008CP0 K08008CP0 K09008CP0 K10008CP0 K11008CP0 K12008CP0 K13008CP0 K15008CP0

K16008CP0 K17008CP0 K18008CP0 K19008CP0 K20008CP0 K25008CP0 K30008CP0 K32008CP0 K34008CP0 K36008CP0

K02508AR0 K05008AR0 K06008AR0 K07008AR0 K08008AR0 K09008AR0 K10008AR0 K11008AR0 K12008AR0 K13008AR0 K14008AR0

K15008AR0 K16008AR0 K17008AR0 K18008AR0 K19008AR0 K20008AR0 K25008AR0 K30008AR0 K32008AR0 K34008AR0 K36008AR0

K02508XP0 K05008XP0 K06008XP0 K07008XP0 K08008XP0 K09008XP0 K10008XP0 K11008XP0 K12008XP0 K13008XP0 K14008XP0

K15008XP0 K16008XP0 K17008XP0 K18008XP0 K19008XP0 K20008XP0 K25008XP0 K30008XP0 K32008XP0 K34008XP0 K36008XP0

J02508CP0 J05008CP0 J06008CP0 J07008CP0 J08008CP0 J09008CP0 J10008CP0 J11008CP0 J12008CP0 J13008CP0

J14008CP0 J15008CP0 J16008CP0 J17008CP0

J02508XP0 J05008XP0 J06008XP0 J07008XP0 J08008XP0 J09008XP0 J10008XP0 J11008XP0 J12008XP0 J13008XP0 J14008XP0

J15008XP0 J16008XP0 J17008XP0

K02513CP0 K05013CP0 K06013CP0 K07013CP0 K08013CP0 K09013CP0 K10013CP0 K11013CP0 K12013CP0 K13013CP0 K14013CP0

K15013CP0 K16013CP0 K17013CP0 K18013CP0 K19013CP0 K20013CP0 K25013CP0 K30013CP0 K32013CP0 K34013CP0 K36013CP0

K02513XP0 K05013XP0 K06013XP0 K07013XP0 K08013XP0 K09013XP0 K10013XP0 K11013XP0 K12013XP0 K13013XP0 K14013XP0

K15013XP0 K16013XP0 K17013XP0 K18013XP0 K19013XP0 K20013XP0 K25013XP0 K30013XP0 K32013XP0 K34013XP0 K36013XP0

K02513AR0 K05013AR0 K06013AR0 K07013AR0 K08013AR0 K09013AR0 K10013AR0 K11013AR0 K12013AR0 K13013AR0 K14013AR0

K15013AR0 K16013AR0 K17013AR0 K18013AR0 K19013AR0 K20013AR0 K25013AR0 K30013AR0 K32013AR0 K34013AR0 K36013AR0

K02520CP0 K05020CP0 K06020CP0 K07020CP0 K08020CP0 K09020CP0 K10020CP0 K11020CP0 K12020CP0 K13020CP0 K14020CP0

K15020CP0 K16020CP0 K17020CP0 K18020CP0 K19020CP0 K20020CP0 K25020CP0 K30020CP0 K32020CP0 K34020CP0 K36020CP0

K02520AR0 K05020AR0 K06020AR0 K07020AR0 K08020AR0 K09020AR0 K10020AR0 K11020AR0 K12020AR0 K13020AR0 K14020AR0

K15020AR0 K16020AR0 K17020AR0 K18020AR0 K19020AR0 K20020AR0 K25020AR0  K30020AR0 K32020AR0 K34020AR0 K36020AR0

K02520XP0 K05020XP0 K06020XP0 K07020XP0 K08020XP0 K09020XP0 K10020XP0 K11020XP0 K12020XP0 K13020XP0 K14020XP0

K15020XP0 K16020XP0 K17020XP0 K18020XP0 K19020XP0 K20020XP0 K25020XP0 K30020XP0 K32020XP0 K34020XP0 K36020XP0

S03503AS0 S06003AS0 S07003AS0 S07403AS0 S08003AS0 S09003AS0 S10003AS0 S11003AS0 S12003AS0 S13003AS0 S14003AS0

S15003AS0 S16003AS0 S17003AS0

S03503CS0 S06003CS0 S07003CS0 S07403CS0 S08003CS0 S09003CS0 S10003CS0 S11003CS0 S12003CS0 S13003CS0 S14003CS0

S15003CS0 S16003CS0 S17003CS0

S03503XS0 S06003XS0 S07003XS0 S07403XS0 S08003XS0 S09003XS0 S10003XS0 S11003XS0 S12003XS0 S13003XS0 S14003XS0

S15003XS0 S16003XS0 S17003XS0

RAU/RA5008  RAU/RA6008  RAU/RA7008  RAU/RA8008  RAU/RA9008  RAU/RA10008  RAU/RA11008  RAU/RA12008

RAU/RA13008  RAU/RA14008  RAU/RA15008  RAU/RA16013  RAU/RA17013  RAU/RA18013  RAU/RA19013  RAU/RA20013

CRBT 105 CRBT 155 CRBT 205 CRBT 305 CRBT 405 CRBT 505 CRBT 605 CRBT 705 CRBT 805 CRBT 905 CRBT 1005

CRBTF105 CRBTF205 CRBTF305 CRBTF405

FS-3 FS-5 FS-8 FS-11 FS-14 FS-17 FS-20 FS-25 FS-32 FS-40 FS-45 FS-50 FD-14 FD-17 FD-20 FD-25 FD-32 FM-14 FM-17 FM-20

FM-25 FM-32 3E904KAT2 3E905KAT2 3E806KAT2 1000907AKIT2 3E907KAT2 3E809KAT2 1000809AKIT2 10008810AKT2 1000912AKT2