Fafnir2MM9305WICRDULAngular Contact Ball Bearing – 25 mm ID, 42 mm OD, 9 mm Width, Open, 15° Contact Angle, Light Preload.

Product Description

What this part is:

Fafnir 2MM9305WICR-SUL super-precision angular contact ball bearing, single row, open on both faces, universally ground single. Bore Diameter: 25 mm. Outside Diameter: 42 mm. Overall Width: 9 mm. Series: 9300. Contact Angle: 15°. The 9300WI series maps to the ISO 719xx extra-light series, so this envelope is the ISO 71905 size, also written 7905. Unit Quantity: 1 Pc.

Decoding the designation:

2MM — 15° contact angle, P4 precision class (ABEC 7).

WI — low-shoulder super-precision spindle execution.

CR — phenolic cage.

SU — single bearing, universally ground so any two pieces stack back-to-back, face-to-face or in tandem.

L — light preload.

DUL — the duplex universally ground, light preload designation marked on the carton.

Specifications:

Precision Class: P4 (ABEC 7). Dynamic Load Rating: 9,040 N (C1, 1 million revolutions). Static Load Rating: 5,750 N. Limiting Speed: 34,800 rpm grease; 69,600 rpm oil. Contact Angle: 15°. Preload: Light. Cage Material: Phenolic. Closure Type: Open both faces. Item Weight: 0.040 kg (0.1 lb). GTIN: 087796073449.

Dimensions and mounting:

Bore Diameter: 25 mm (0.9843 in). Outside Diameter: 42 mm (1.6535 in). Overall Width: 9 mm (0.3543 in). Shaft Backing Shoulder Diameter: 28.9 mm (1.140 in). Housing Backing Shoulder Diameter: 38.7 mm (1.520 in). Maximum Housing Fillet Radius: 0.3 mm (0.012 in). Any two universally ground pieces reach the marked preload when clamped in back-to-back, face-to-face or tandem arrangements.

Compatibility and replacement:

SKF 71905 CD/P4ADGA — 15° super-precision, light preload, universally matchable single.

SKF 71905 CD/P4A — 15° super-precision single without a light-preload code.

GMN S 61905 C TA A7 — 15° super-precision.

NSK 7905C — 15° super-precision.

SKF 71905 ACD and NSK 7905A5 — related 25° contact angle versions of the 25 x 42 x 9 mm size.

CAD model and data sheet: available from Timken (cad.timken.com).

Frequently asked questions:

What is the contact angle of the Fafnir 2MM9305WICR-SUL?

15°, set by the 2MM prefix.

What ISO size is the 2MM9305WI?

ISO 71905, also written 7905, with a 25 x 42 x 9 mm envelope.

What does SUL mean on this bearing?

A single, universally ground bearing at light preload.