Heavy Duty Rubber on Cast Iron Caster 4"–8" x 2" (Series 40) — Rigid, Swivel, Brake & Total Lock
4" x 2" Rubber on Cast Iron rigid caster, 350 lb, top plate mount — part 40-40R-A1-RC
4" x 2" Rubber on Cast Iron swivel with brake caster, 350 lb, top plate mount — part 40-40S-A1-RC-TB
Heavy Duty Rubber on Cast Iron Caster 4"–8" x 2" (Series 40) — Rigid, Swivel, Brake & Total Lock
Heavy Duty Rubber on Cast Iron Caster 4"–8" x 2" (Series 40) — Rigid, Swivel, Brake & Total Lock
Heavy Duty Rubber on Cast Iron Caster 4"–8" x 2" (Series 40) — Rigid, Swivel, Brake & Total Lock
Heavy Duty Rubber on Cast Iron Caster 4"–8" x 2" (Series 40) — Rigid, Swivel, Brake & Total Lock
Heavy Duty Rubber on Cast Iron Caster 4"–8" x 2" (Series 40) — Rigid, Swivel, Brake & Total Lock
Heavy Duty Rubber on Cast Iron Caster 4"–8" x 2" (Series 40) — Rigid, Swivel, Brake & Total Lock
4" x 2" Rubber on Cast Iron Swivel Caster with Total Lock Brake, Series 40 (40-40S-A1-RC-TTL)

Heavy Duty Rubber on Cast Iron Caster 4"–8" x 2" (Series 40) — Rigid, Swivel, Brake & Total Lock

$15.76 Oferta

Heavy Duty Rubber on Cast Iron Caster — Series 40 (4", 5", 6" & 8" x 2")

This Series 40 Medium Heavy Duty rubber on cast iron caster is available in four wheel sizes — 4" x 2", 5" x 2", 6" x 2", and 8" x 2" — each on a cold-forged steel top plate with a hardened, double-row ball bearing swivel raceway and built-in Zerk lubrication fitting for smooth 360° movement and long service life. Every size is offered in four configurations: Rigid, Swivel, Swivel with Brake (Top Lock), and Swivel with Total Lock. Select your wheel size and configuration from the menu above; the matching specifications are listed below.

Specifications by Size

Wheel Size Load Capacity Overall Height Swivel Radius Tread Width
4" x 2" 350 lbs 5-5/8" 3-3/16" 2"
5" x 2" 400 lbs 6-1/2" 3-7/8" 2"
6" x 2" 450 lbs 7-1/2" 4-37/64" 2"
8" x 2" 500 lbs 9-1/2" 6" 2"

Configurations & Part Numbers

Size Type Brake Part Number
4" x 2" Rigid — 40-40R-A1-RC
4" x 2" Swivel — 40-40S-A1-RC
4" x 2" Swivel with Brake Top Lock Brake (TB) 40-40S-A1-RC-TB
4" x 2" Swivel with Total Lock Total Lock Brake (TTL) 40-40S-A1-RC-TTL
5" x 2" Rigid — 40-50R-A1-RC
5" x 2" Swivel — 40-50S-A1-RC
5" x 2" Swivel with Brake Top Lock Brake (TB) 40-50S-A1-RC-TB
5" x 2" Swivel with Total Lock Total Lock Brake (TTL) 40-50S-A1-RC-TTL
6" x 2" Rigid — 40-60R-A1-RC
6" x 2" Swivel — 40-60S-A1-RC
6" x 2" Swivel with Brake Top Lock Brake (TB) 40-60S-A1-RC-TB
6" x 2" Swivel with Total Lock Total Lock Brake (TTL) 40-60S-A1-RC-TTL
8" x 2" Rigid — 40-80R-A1-RC
8" x 2" Swivel — 40-80S-A1-RC
8" x 2" Swivel with Brake Top Lock Brake (TB) 40-80S-A1-RC-TB
8" x 2" Swivel with Total Lock Total Lock Brake (TTL) 40-80S-A1-RC-TTL

Common Specifications (all sizes)

Series 40 — Medium Heavy Duty
Wheel Material Rubber on Cast Iron
Tread Width 2"
Axle Diameter 1/2"
Kingpin 5/8"
Bearing Roller
Top Plate Size 3-15/16" x 4-1/2"
Bolt Hole Spacing 2-5/8" x 3-5/8" ~ 3" x 3"
Mounting Bolt Size 3/8"
Finish Zinc Plated

Key Features

  • Rubber on Cast Iron wheel — high strength, low rolling resistance
  • Four wheel sizes (4", 5", 6", 8" x 2") rated 350–500 lbs per caster
  • Cold-forged steel top plate with hardened, double-row ball bearing swivel raceway
  • 5/8" kingpin and 1/2" axle with built-in Zerk lubrication fitting
  • Rigid, Swivel, Swivel with Brake (Top Lock) and Swivel with Total Lock configurations
  • Corrosion-resistant zinc plated finish

Applications & Common Uses

  • Rough industrial floors
  • Heavy-duty dollies
  • Foundry-adjacent carts
  • Carts
  • Racks
  • Platform trucks

Ideal for platform trucks, stock carts, dollies, workbenches, shelving, and heavy material handling equipment across warehouse, industrial, and commercial settings.