Fafnir2MM219WICRSULSuper-Precision Angular Contact Ball Bearing – 95 mm ID, 170 mm OD, 32 mm Width, Open, 15°, Light Preload, Phenolic Cage, P4.

Product Description

What this part is:

Fafnir 2MM219WICR-SUL (Timken designation 2MM219WICRSUL) is a super-precision single-row angular contact ball bearing, 95 x 170 x 32 mm, with a 15° contact angle, phenolic cage, light preload and P4 precision. Open on both faces, universally ground single bearing in the ISO 7219-C envelope. Unit Quantity: 1 Pc.

Decoding the designation:

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

219 — ISO 72 medium series size with a 95 mm bore; ISO equivalent 7219-C.

WI — low-shoulder spindle design, Fafnir 200WI family.

CR — phenolic cage.

SU — single bearing, universally ground.

L — light preload.

Specifications:

Bore Diameter: 95 mm (3.740 in). Outside Diameter: 170 mm (6.693 in). Width: 32 mm (1.26 in). Contact Angle: 15°. Cage Material: Phenolic. Preload: Light. Precision Class: ABEC 7 / P4. Closure Type: Open. Number of Rows: 1. Dynamic Load Rating: 147,100 N (33,100 lbf, rated at 1 million revolutions). Static Load Rating: 112,000 N (25,000 lbf). Limiting Speed: 8,400 rpm grease; 16,800 rpm oil. Mass: 2.669 kg (5.88 lb). GTIN: 087796326378.

Dimensions and mounting:

Shaft backing shoulder diameter: 108.6 mm (4.280 in). Housing backing shoulder diameter: 157.1 mm (6.190 in). Maximum housing fillet radius that the bearing corners clear: 2.1 mm (0.079 in).

Compatibility and replacement:

Cross-references: RHP 7219CTRSULP4 (light preload); NSK 7219CTRSULP4 (light preload); FAG B7219-C-T-P4S-UL (light preload); SKF 7219 CD/P4ADGB (light preload). ISO equivalent: 7219-C. The 25° 3MM219WI shares the 95 x 170 x 32 mm envelope. Also written 2MM219WI-CR-SUL and 2MM-219-WI-CR-SUL. CAD model and data sheet: available from Timken (cad.timken.com).

Frequently asked questions:

What are the dimensions of the Fafnir 2MM219WICR-SUL?

Bore 95 mm, outside diameter 170 mm, width 32 mm, ISO equivalent 7219-C.

What do the 2MM, CR, SU and L codes mean?

2MM gives a 15° contact angle and P4 precision, CR is a phenolic cage, SU is a single universally ground bearing and L is light preload.

What are its load ratings and limiting speeds?

Dynamic load rating 147,100 N, static load rating 112,000 N, limiting speed 8,400 rpm with grease and 16,800 rpm with oil.