NSK7212CTYDULPA7Angular Contact Ball Bearing Duplex Matched Pair 60 x 110 x 22 mm, 15 Degree Contact Angle, Light Preload, Set of 2

Product Description

What this part is:

An NSK 7212CTYDUL angular contact ball bearing set, two rings supplied as a duplex-matched pair. Steel rings, steel balls, open on both faces.

Decoding the designation:

• 72 — ISO 72 dimension series; bore code 12 gives a 60 mm bore. ISO equivalent 7212C.
• C — 15° contact angle in NSK’s scheme.
• DUL — duplex, light preload.

What these specs mean in practice:

A 15° contact angle favours speed and radial stiffness over thrust capacity, which is the usual choice for a spindle front position. Light preload keeps the running temperature and frictional torque low against some loss of axial stiffness. The rings are ground as a duplex pair, so they seat together and reach the marked preload without a shim stack.

Published specifications:

• Bore: 60 mm (2.3622 in)
• Outside diameter: 110 mm (4.3307 in)
• Width per ring: 22 mm (0.8661 in)
• Total width of the pair: 44 mm (1.7323 in)
• Contact angle: 15°
• Preload: light
• Rolling elements: steel balls, single row per ring
• Closure: open both faces

Quantity and configuration:

2 Pcs, supplied as one duplex-matched pair.

Interchange guidance:

ISO base number 7212, angle-designated 7212C. Searchable forms are 7212CTYDULPA7, 7212C TY DUL PA7, 7212-C-TY-DUL-PA7 and 7212CDUL. A 7212A ring is the 30° version and a 7212A5 the 25° version of the same envelope, so both are related sizes rather than interchanges. DUM and DUH are the medium and heavy preload grades and are likewise related sizes.