What this part is:FAG 6310-2RSR-L038-C3 single-row deep groove ball bearing with contact rubber seals on both sides, greased for life. Bore Diameter: 50 mm. Outside Diameter: 110 mm. Width: 27 mm. Closure Type: Contact seals both sides. Internal Clearance: C3.
Decoding the designation:63 — deep groove ball bearing, 03 medium diameter series.
10 — bore code, 10 x 5 = 50 mm bore.
2RSR — lip seals of the contact type on both sides.
L038 — Schaeffler grease fill code L038.
C3 — radial internal clearance larger than normal.
What these specs mean in practice:Dynamic Load Rating: 68,000 N. Static Load Rating: 38,500 N. Limiting Speed: 3,950 rpm grease. Fatigue load limit: 2,650 N. Operating Temperature: −20 °C to +100 °C. Cage Material: Pressed steel. Item Weight: 1.083 kg (2.39 lb). Rings dimensionally stabilised to 150 °C. C3 clearance allows for tighter fits and for the inner ring running warmer than the outer.
Mounting data:Minimum shaft shoulder diameter: 61 mm. Maximum housing shoulder diameter: 99 mm. Maximum fillet radius: 2 mm. Minimum chamfer: 2 mm.
Quantity and configuration:Unit Quantity: 1 Pc. Sealed and pre-greased.
Interchange guidance:Same 50 x 110 x 27 mm double contact-seal C3 envelope: SKF 6310-2RS1/C3, NSK 6310DDUC3, NTN 6310LLUC3, Koyo 6310-2RSC3, Timken 6310-2RS-C3.
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