Timken SCJ 1-1/4S Industrial Four-Bolt Flange Bearing

Description:

The Timken Fafnir SCJ 1-1/4S four-bolt flange bearing is used to support a 1-1/4 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 dependable shaft support. Maintenance teams, OEMs, and system integrators use this bearing unit for replacement, repair, retrofit, and equipment overhaul to restore reliable shaft alignment and minimize equipment downtime.

Applications:

The Timken Fafnir SCJ 1-1/4S is a four-bolt square flange mounted ball bearing unit featuring a GYA103RRB2 insert bearing with a set screw locking mechanism for secure shaft retention. Its cast iron housing, molded shroud seals, and relubricatable design make it well suited for conveyor systems, material handling equipment, agricultural machinery, packaging lines, HVAC equipment, and general industrial applications requiring durable flange-mounted shaft support.

Technical Specifications:

• Manufacturer: Timken Fafnir
• Manufacturer Part Number (MPN): SCJ 1-1/4S (SCJ1 1/4 S)
• Product Type: Four-bolt square flange mounted ball bearing unit
• Series: Standard SCJ Series
• Bearing Number: GYA103RRB2
• Bearing Type: Mounted ball bearing
• Shaft Size: 1-1/4 in (31.75 mm)
• Locking Style: Set screw locking
• Housing Construction: Four-bolt square flange, cast iron
• Seal Type: Molded shroud seals
• Overall Length (L): 4.248 in (107.9 mm)
• Housing Width (A): 0.843 in (21.4 mm)
• Bolt Hole Spacing (J): 3.250 in (82.55 mm)
• Bolt Hole Size (N): 0.394 in (10 mm)
• Flange Thickness (A1): 0.563 in (14.3 mm)
• Inner Ring Width (B): 1.280 in (32.5 mm)
• Dynamic Load Rating: 4,850 lbf (21,600 N)
• Static Load Rating: 2,530 lbf (11,300 N)
• Lubrication: Factory prelubricated with grease fitting for relubrication

Common Replacements:

• Timken SCJ 1-1/4
• Timken RCJ 1-1/4
• Dodge F4B-SC-125 equivalent