China manufactures oem custom small steel slewing ball bearing SR20/222 turntable ring without gear 

Outer ring diameter(Da):312mm

Inner ring diameter(di):145.14mm

Total height(H):50mm

La:270mm

Li:175mm

Outer ring mounting hole:14-M15.88

Innet ring mounting hole:16-M15.88

Outer ring height(C):44mm

Inner ring height(B):44mm

h:6mm

Di:220.86mm

da:224.15mm

Rated load:425KN

Weight:18.55kg

If you are interested in the SR20/222 slewing bearing, please contact us freely.

More untoothed slewing bearing we produce like:

SR15/120(SR11/170), SR10/179, SR10/179Y, SR10/250, SR20/222(SR20/312), SR20/260(SR20/326), SR20/260Y, SR15/340, SR20/308, SR20/405(SR20/474), SR20/380(SR25/485), SR20/414, SR20/414Y, SR25/412(SR25/501), SR10/444, SR25/433(SR25/522), SR30/462(SR32/568), SR20/582(SR20/675),  SR30/574(SR32/680), SR30/630(SR25/732), SR35/680(SR36/795), SR35/823(SR36/933), SR35/980(SR36/1090), SR25/1072, SR20/1220(SR20/1290), SR40/1117(SR45/1238), SR25/1122, SR45/1106, SR40/1105, SR40/1213(SR40/1330), SR50/1472(SR50/1600), SR35/1350(SR36/1462), SR45/1578(SR45/1725), SR45/1600, SR25/1932(SR25/2032), SR40/2000(SR40/2116), SR70/2160(SR70/2385), SR25/2300(SR25/4000), SR30/2900(SR30/3005).