NSKHR32028XJP5Tapered Roller Bearing Cone & Cup — 140 mm Bore, 210 mm OD, 45 mm Width, ABEC 5 / P5

Product Description

What this part is:

NSK HR32028XJ single-row tapered roller bearing, supplied as a matched cone and cup. Bore Diameter: 140 mm. Outside Diameter: 210 mm. Overall Width: 45 mm. Cone width B: 45 mm. Cup width C: 34 mm. Rolling Elements: Tapered Roller. Precision Class: ABEC 5 / P5.

Decoding the designation:

HR — NSK high-capacity uprate of the base 32028X design, within the same ISO boundary dimensions.

32028 — ISO metric tapered roller size for a 140 mm bore in the 320 series.

X — ISO-updated boundary dimensions.

J — pressed steel cage.

P5 — ISO class 5 precision, equivalent to ABEC 5.

What these specs mean in practice:

Dynamic Load Rating: 400,000 N (89,923 lbf). Static Load Rating: 555,000 N (124,768 lbf). Limiting Speed: 1,600 rpm grease; 2,200 rpm oil. Jet lubrication raises the limit to 2,800 rpm. Item Weight: 5.32 kg (11.729 lb). Cage Material: Pressed steel. Closure Type: Open. Lubricant: grease or oil. The P5 grade holds bore, outside diameter and running accuracy to class 5 limits, which suits heavily loaded low-speed spindles and rotary axes where runout drives part accuracy.

Mounting data:

Effective load centre a: 46.6 mm. Shaft abutment diameter da min: 155 mm. Cone back face abutment db max: 152 mm. Housing abutment diameter Da: 189–200 mm. Housing abutment Db min: 202 mm. Maximum abutment fillet radius ra: 2 mm. Bearing chamfer r min: 2 mm on the cup and 2.5 mm on the cone. Axial load factors e: 0.46, Y1: 1.3, Y0: 0.72.

Quantity and configuration:

Unit Quantity: 1 Pc. Number Of Rows: 1. The cone and cup are supplied together as one bearing.

Interchange guidance:

The 32028X ISO envelope is shared by Timken 32028X, SKF 32028 X/Q, FAG 32028-X, Koyo 32028JR, NTN 4T-32028X and NACHI 32028X. The HR execution is NSK’s high-capacity version on that envelope.