RHP7208CTSUMP4Super Precision Angular Contact Ball Bearing – 40 mm ID, 80 mm OD, 18 mm Width, Open, 15° Contact Angle, Medium Preload, ABEC 7.

Product Description

What this part is:

RHP 7208CTSUMP4 super precision angular contact ball bearing, single row, ISO dimension series 02, 40 mm bore, 80 mm outside diameter, 18 mm width, 15° contact angle, open, universally ground single bearing (SU) at medium preload (M), P4 precision. Unit Quantity: 1 Pc.

Decoding the designation:

7208 — ISO dimension series 02, bore code 08, 40 mm bore.

C — 15° contact angle.

T — machined laminated phenolic cage, outer-ring guided in this range.

SU — single bearing with universal face control.

M — medium preload.

P4 — precision class P4, equivalent to ABEC 7 and ISO Class 4.

Specifications:

Dynamic Load Rating: 36,500 N (36.5 kN) per bearing. Static Load Rating: 25,200 N (25.2 kN) per bearing. Limiting Speed: 18,900 rpm grease; 30,600 rpm oil or oil-air (single bearing). Speed factors: back-to-back pair at medium preload 0.60, set of three 0.50, set of four 0.45, spring-loaded tandem pair 0.95. Contact Angle: 15°. Precision Class: ABEC 7 / P4. Preload: Medium (M), 490 N axial as a paired set; preload ladder EL 100 N, L 200 N, M 490 N, H 980 N. Axial Stiffness: 90 N per micrometre paired at medium preload; ladder EL 44, L 60, M 90, H 126. Cage Material: Laminated phenolic resin. Cage Type: Machined, outer-ring guided; maximum recommended operating temperature for laminated phenolic cages is 120 °C. Lubricant: grease or oil. Rolling Elements: Steel balls. Bearing Material: carbon chrome bearing steel to SAE 52100. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Item Weight: 0.366 kg (0.81 lb). Series: 7200. Base Number: 7208.

Dimensions and mounting:

Bore Diameter: 40 mm. Outside Diameter: 80 mm. Width: 18 mm. Effective Load Centre: 17.0 mm. Inner Ring Abutment Diameter: 47 mm minimum. Outer Ring Abutment Diameter: 73 mm maximum. Housing Abutment Diameter: 75 mm maximum. Fillet Radius r min: 1.1 mm. Fillet Radius r1 min: 0.6 mm. Internal Volume: 15.5 cm³. Lubrication Jet Pitch Circle Diameter dT: 55.5 mm. Mass: 0.366 kg.

Compatibility and replacement:

Cross-references: SKF 7208 CDGB/P4A; FAG B7208-C-T-P4S-UM (P4S class); Fafnir 2MM208WICRDUM. RHP B-series form: B7208X2TADUMEP7, where X2 is the 15° contact angle and TA the one-piece machined laminated phenolic cage, outer-ring centred. Related size: 7208A5 (same 40 x 80 x 18 mm envelope, 25° contact angle). MPN Variants: 7208CTSUMP4; 7208-C-T-SUM-P4; 7208-C-T-DUM-P4; B7208X2TADUMEP7; 2MM208WICRDUM; 208HDM.

Frequently asked questions:

What size is the RHP 7208CTSUMP4?

40 mm bore, 80 mm outside diameter and 18 mm width, a single-row angular contact ball bearing with a 15° contact angle.

What do C, SU, M and P4 mean in 7208CTSUMP4?

C is the 15° contact angle, SU is a single bearing with universal face control, M is medium preload, and P4 is precision class P4 (ABEC 7, ISO Class 4).

What are the load ratings and limiting speeds?

Per bearing: dynamic load rating 36,500 N and static load rating 25,200 N. Limiting speed is 18,900 rpm with grease and 30,600 rpm with oil or oil-air.