The Timken Company SCJ1 Four-Bolt Flange Bearing

Description:

The Timken Fafnir SCJ1 four-bolt flange bearing is used to support a 1-inch rotating shaft in industrial power transmission and material handling systems. Commonly installed in conveyors, packaging machinery, agricultural equipment, fans, blowers, and manufacturing equipment where a square flange mounted bearing provides reliable shaft support. Maintenance teams, OEMs, and system integrators use this bearing unit for replacement, repair, retrofit, and equipment overhaul to restore dependable shaft alignment and minimize equipment downtime.

Applications:

The Timken Fafnir SCJ1 is a four-bolt square flange mounted ball bearing unit featuring a GYA100RRB insert bearing with a set screw locking mechanism for secure shaft retention. Its one-piece cast iron housing, molded shroud contact seals, and relubricatable design make it ideal for conveyor systems, agricultural machinery, food processing equipment, fans, blowers, packaging lines, and general industrial applications requiring durable flange-mounted shaft support.

Technical Specifications:

• Manufacturer: Timken Fafnir
• Manufacturer Part Number (MPN): SCJ1 (Alternate Part Name: SCJ 1)
• Product Type: Four-bolt square flange mounted ball bearing unit
• Series: Standard SCJ Series
• Bearing Number: GYA100RRB
• Bearing Type: Mounted ball bearing
• Shaft Size: 1.000 in (25.4 mm)
• Locking Style: Set screw locking
• Housing Construction: Four-bolt square flange, cast iron
• Seal Type: Molded shroud seals
• Overall Length (L): 3.748 in (95.2 mm)
• Housing Width (A): 0.780 in (19.8 mm)
• Bolt Hole Spacing (J): 2.750 in (69.85 mm)
• Bolt Hole Size (N): 0.394 in (10 mm)
• Flange Thickness (A1): 0.531 in (13.5 mm)
• Inner Ring Width (B): 1.110 in (28.2 mm)
• Dynamic Load Rating: 3,490 lbf (15,500 N)
• Static Load Rating: 1,750 lbf (7,800 N)
• Lubrication: Factory prelubricated with grease fitting for relubrication

Common Replacements:

• Timken SCJ1KRRB
• Timken SCJ1 with GYA100RRB insert bearing
• Dodge F4B-SC-100 equivalent