NTN 7312 BL1DB Angular Contact Ball Bearing
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Duplex Angular Contact Ball Bearing
NTN 7312 BL1DB duplex angular contact ball bearing with back-to-back (DB) arrangement, 40-degree contact angle, and high load capacity for precision industrial applications.
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NTN 7312 BL1DB Duplex Angular Contact Ball Bearing
A high-precision duplex angular contact ball bearing manufactured by NTN, designed to support combined radial and axial loads with high rigidity and accuracy. This bearing features a back-to-back (DB) matched arrangement and a 40-degree contact angle, making it suitable for demanding industrial applications requiring high load capacity and stable rotational performance.
Manufacturer: NTN
Type: Duplex Angular Contact Ball Bearing
Model: 7312 BL1DB
Basic Load Ratings
Speed Ratings
| Bore Diameter (d) | 60 mm |
| Outer Diameter (D) | 130 mm |
| Width (B) | 31 mm |
| Contact Angle | 40 degrees |
| Dynamic Load Rating (Cr) | 99.5 kN |
| Static Load Rating (C0r) | 66 kN |
| Fatigue Load Limit | 5.15 kN |
| Limit Speed (Oil Lubrication) | 6800 rpm |
| Limit Speed (Grease Lubrication) | 5100 rpm |
| Cage | Glass fiber |
| Matched Arrangement | Back-to-back arrangement (DB) |
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