BL4DA, Zinc alloy Ball Joints, Female M4 x 0.7 RH Housing M4 x 0.7 RH Stud, Sealed
BL-Series is 4-piece design die cast zinc alloy ball joints suitable for medium industrial/mechanical load applications requiring smooth action and good wear resistance. The housing is die cast around the ball giving an ultra smooth surface contact area, the ball stud is hardened and friction welded to the ball. Bearing cavity filled with high wear lubricant. The neoprene rubber boot helps resist dirt contamination.
| High-strength zinc alloy | Housing | |
| Bearing steel (58-64HRC) | Ball of Ball stud | |
| 1035 steel (20~28HRC) | Shank of Ball stud | |
| Neoprene | Boot |
| G | M4 x 0.7 RH | Housing Thread |
| G1 | M4 x 0.7 RH | Stud thread |
| L | 24.5 mm | Overall length |
| L1 | 18 mm | Length ball center to housing face |
| L2 | 4 mm | Housing wrench flat length |
| L3 | 8 mm | Housing thread length |
| d1 | 4 mm | Shaft diameter |
| d2 | 9.5 mm | Stud wrench flat diameter |
| d3 | 8.1 mm | Hexagon diagonal length |
| M | 20 mm | Overall height |
| M1 | 15 mm | Height centerline to stud face |
| M2 | 7 mm | Height centerline to wrench flat face |
| M3 | 6 mm | Stud thread length |
| D1 | 7.5 mm | Shank diameter, small |
| D3 | 13 mm | Socket outside diameter |
| W | 7 mm | Stud wrench across flat |
| W1 | 8 mm | Housing wrench across flat |
| dk | 7.938 mm | Ball diameter |
| 2α° | 40 ° | Permissible tilt angle |
| ≈m | 0.007 kg | Weight |
| CS | 4510 N | Applied static load |
| PK | 1370 N | Yield point strength |
| 0.02~0.06 mm | Perpendicular to axis | |
| 0.3 mm or less | Axial Clearance |
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