– Type: Cam follower bearing, 4‑inch diameter
– Outer roller diameter: 4 inch
– Material: High‑strength alloy bearing steel, heat‑treated
– Structure: Stud‑type heavy‑load cam follower
– Max dynamic radial load: 210 kN
– Feature: Shock‑resistant, anti‑abrasion for heavy‑duty drilling rig environment
– Applicable equipment: NOV VARCO TDS‑8SA / TDS‑9SA / TDS‑11SA top‑drive
– Operating temperature:‑40℃ ~ +120℃
