687/672 Bearing 687-672 Single Row Roller Bearing 4 Inch Bore

Bore Diameter (d): 101.6 mm/ 4 inch
Outer Diameter (D): 168.275 mm/ 6.625 inch
Inner Ring Width (B): 41.275 mm/ 1.625 inch
Total Width (T): 41.275 mm/ 1.625 inch
Mass: 3.40kg/ 7.496lb
Material: bearing steel
Number of Row: single
Category: taper roller bearing

687/672 Bearing Specification:

687/672 bearing is a single row taper roller bearing. As for this bearing model,
Bore Diameter (d): 101.6 mm/ 4 inch
Outer Diameter (D): 168.275 mm/ 6.625 inch
Inner Ring Width (B): 41.275 mm/ 1.625 inch
Total Width (T): 41.275 mm/ 1.625 inch
Mass: 3.40kg/ 7.496lb
Material: bearing steel
Enclosure: open
Bore Type: cylindrical
Number of Row: single
Category: taper roller bearing
Relubricate Feature: without
Equivalents: 687 / 672, 672/687, 687-672, 687 – 672, 4T-687/672, 687/672/Q, 687-99401

Key Features:

Single-Row Tapered Design: 687/672 bearing features tapered rollers and conical raceways, enabling it to handle combined radial and axial loads in one direction.
High Load Capacity: Supports heavy radial and axial forces; greater contact angle increases axial load capability.
Easy Assembly & Disassembly: Composed of a cone unit (inner ring, cage, rollers) and a cup (outer ring) for straightforward mounting.
Open Construction: Requires pairing with another tapered roller bearing in X, O, or tandem arrangement for proper function.

FAQ:

Q1: What is a 687/672 bearing used for?
A1: The 687/672 bearing is mainly used in heavy-duty applications such as trucks, trailers, construction equipment, and industrial machinery where it supports high radial and axial loads.

Q2: How long does delivery take?
A2: We keep a large inventory of common tapered roller bearing models. For example, we currently have 321pcs of HM89443/HM89410 bearings, 365 pcs of 28985/28921 bearings and 376 pcs of 687/672 bearings available. If your order is within our stock quantity, we can arrange shipment within 2–3 days after receiving payment. For quantities beyond stock, the delivery time will be around 10–30 days.

Q3: What material is the bearing made from?
A3: It is manufactured from high-quality bearing steel (AISI 52100), ensuring strength, durability, and resistance to wear even in tough operating environments.

Q4: How do I maintain a taper roller bearing?
A4: Regularly lubricate with the correct grease or oil, keep the bearing clean from contaminants, and check for wear or noise during operation to extend service life.