Fafnir2MM220WICRSULAngular Contact Ball Bearing – 100 mm ID, 180 mm OD, 34 mm Width, 15° Contact Angle, Phenolic Cage, Light Preload, ABEC 7/9 P4S

Product Description

What this part is:

Fafnir 2MM220WICRSUL is a super-precision angular contact ball bearing, universally ground as a single for duplex service. Bore Diameter: 100 mm. Outside Diameter: 180 mm. Overall Width: 34 mm. Contact Angle: 15°. Bore Type: Straight. Closure Type: Open. Rolling Elements: Ball. Number Of Rows: 1. Cage Material: Phenolic. Bearing Material: Bearing steel. Unit Quantity: 1 Pc. The envelope is the ISO 7220 size.

Decoding the designation:

2MM — Timken Fafnir super-precision at a 15° contact angle. MM is the P4S precision grade: ABEC 9 / ISO P2 running accuracy on an ABEC 7 / ISO P4 body.

220 — the 200WI dimension series at bore code 20, ISO 72-series size 7220 at 100 x 180 x 34 mm.

WI — Timken’s standard angular contact construction: full shoulders on both sides of the inner ring and a low shoulder on the outer ring.

CR — phenolic composition cage, Timken’s standard cage for super-precision spindle bearings.

SUL — single, universally ground, light preload. Faces are ground flush so bearings stack back to back, face to face or in tandem and reach light preload without shims.

Specifications:

Dynamic Load Rating: 165,200 N. Static Load Rating: 126,800 N. Both are Timken C1 and C0 values for a single bearing.

Limiting Speed: 8,000 rpm grease; 16,000 rpm oil. Contact Angle: 15°. Preload: Light. Precision Class: ABEC 7/9 / P4S. Item Weight: 3.209 kg (7.07 lb).

Mounting Arrangement: Universally ground single (SU). Series: 2MM200WI. Base Number: 2MM220WI. GTIN: 087796015654. Harmonization Code: 8482.10.50.

Dimensions and mounting:

Bore Diameter: 100 mm. Outside Diameter: 180 mm. Overall Width: 34 mm. Shaft Backing Shoulder Diameter: 114.4 mm (4.510 in). Housing Backing Shoulder Diameter: 166 mm (6.540 in). Maximum housing fillet radius that the bearing corners will clear: 2.1 mm (0.079 in). Bore Type: Straight.

Compatibility and replacement:

Cross-references: SKF 7220 CD/P4A (P4A grade); FAG B7220-C-T-P4S-UL; NSK 7220CTRSULP4; NTN 7220CP4; Koyo 7220C-P4; NACHI 7220C/P4. Timken Fafnir 2MM220WI-SUM is the medium-preload execution with identical ratings and dimensions and a different UPC (087796322035).

Frequently asked questions:

What are the size and contact angle of the Fafnir 2MM220WICRSUL?

Bore 100 mm, outside diameter 180 mm, width 34 mm, with a 15° contact angle.

What do the SUL letters in 2MM220WICRSUL mean?

SUL is a single, universally ground bearing with light preload.

What are the load ratings and speed limits?

Dynamic Load Rating 165,200 N and Static Load Rating 126,800 N per bearing. Limiting Speed 8,000 rpm with grease and 16,000 rpm with oil.