FafnirSuper-Precision Angular Contact Ball Bearing Duplex Pair – Straight Bore, 50 mm ID, 90 mm OD, 20 mm Width, Open, 15° Contact Angle, ABEC 7/9, Light Preload, 2 Pcs

Product Description

What this part is

Fafnir 2MM210WIA2-DUL super-precision angular contact ball bearing set, ISO 7210 envelope, 50 mm bore x 90 mm outside diameter x 20 mm width per bearing. A matched pair with universally ground faces. Unit Quantity: 2 Pcs.

Decoding the designation

2MM — 15° contact angle, ISO P4S tolerance class, equal to ABEC 7/9.

210 — 200WI medium series, ISO 7210.

WI — super-precision spindle execution.

DU — universally faced duplex pair.

L — light preload.

Timken world part number for this set: 7210C-T-P4S-DUL.

Specifications

Bore Diameter: 50 mm. Outside Diameter: 90 mm (3.543 in). Overall Width: 20 mm (0.787 in) per bearing. Total Width: 40 mm across the pair. Bore Type: Straight. Number Of Rows: 1 per bearing. Rolling Elements: Balls. Closure Type: Open. Contact Angle: 15°. Precision Class: ABEC 7/9 (ISO P4S). Preload: Light. Cage Material: Machined laminated phenolic. Cage Type: Outer-ring land-riding, machined. Material: Chrome bearing steel. Series: 200WI. Base Number: 2MM210WI. Arrangement / Configuration: Matched duplex pair. Dynamic Radial Load Rating, set: 47,400 N (10,700 lbf). Dynamic Radial Load Rating per row, ISO C1: 43,100 N (9,730 lbf). Static Radial Load Rating: 31,700 N (7,130 lbf). Limiting Speed: 16,000 rpm grease; 32,000 rpm oil. Lubricant: grease or oil. Unit Quantity: 2 Pcs.

Dimensions and mounting

Shaft Backing Shoulder Diameter: 57.4 mm (2.260 in). Housing Backing Shoulder Diameter: 83.3 mm (3.280 in). Maximum Shaft Fillet Radius: 1 mm (0.039 in). Outer Ring To-Clear Radius: 1 mm (0.039 in).

Compatibility and replacement

Cross-Reference 1: Timken 7210C-T-P4S-DUL, world part number. Cross-Reference 2: NSK 7210CTRDULP4. Cross-Reference 3: SKF 7210 CD/P4ADGA, extra light preload. Cross-Reference 4: FAG B7210-C-T-P4S-UL. Cross-Reference 5: RHP 7210CTDULP4. Related part: 3MM210WI set, same 50 x 90 x 20 mm envelope at a 25° contact angle. Searchable forms: 2MM-210-WI-A2-DUL, 2MM210WI A2 DUL, 2 MM 210 WI A2 DUL, 2MM210WICRDUL, 7210C, 7210C-T-DUL-P4.

Frequently asked questions

What are the dimensions of the Fafnir 2MM210WIA2-DUL?
Bore Diameter: 50 mm. Outside Diameter: 90 mm. Overall Width: 20 mm per bearing. Total Width: 40 mm across the pair.

What are the load ratings and speed limits?
Dynamic Radial Load Rating, set: 47,400 N. Static Radial Load Rating: 31,700 N. Limiting Speed: 16,000 rpm grease; 32,000 rpm oil.

What contact angle and preload does it have?
Contact Angle: 15°. Preload: Light.