# Caster top plates: plate size, bolt-hole spacing, hole diameter and mounting height (Blickle, TENTE, Colson, Albion) + 100 × 85 hole template

> What are the top plate size and bolt hole pattern of a swivel caster: 2-1/2 × 3-5/8 in, 4 × 4-1/2 in, 100 × 85 mm?

- Category: Hardware › Casters & wheels
- Kind: Standard part
- Basis: Maker datasheets (Blickle LK / BK-ALST and LMDA-TPA, TENTE ALPHA) and retailer listings of Colson and Albion casters, read in this session; one hole-pattern template plate as a file
- Page: https://xemstudio.com/objects/caster-top-plate-patterns/ · JSON: https://xemstudio.com/api/geometry?object=caster-top-plate-patterns · Plain text: https://xemstudio.com/objects/caster-top-plate-patterns/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 100.0 | 85.0 | 4.0 |

**Exact dimensions.** Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part.

## Notes

- A swivel or rigid plate caster bolts to the equipment by four holes in its top plate. The pattern is quoted as the spacing between hole centres, long side × short side; the plate is the outside of the steel. Rows marked mm are the maker's metric table (Blickle, TENTE), rows marked in are US catalogue rows as printed (fractions of an inch). The sources do not say which number is length and which is width, so the order printed is kept.
- A pattern can be a slot: Colson's 2 series is listed with bolt spacing 1-3/4 × 3 in on three retail pages, 1-3/4 × 2-13/16 slotted to 3-1/16 on another, and 2-3/8 × 3-5/8 plates are listed 1-3/4 × 2-3/4 slotted to 3. The sources disagree on the second spacing (3, 2-13/16 and 2-3/4 in, the last two with a slot), and the plate is 2-1/2 in on most pages but 2-3/8 in on one, so the slot length and the exact second spacing must be checked on the caster's own drawing. Albion's 4 × 4-1/2 plate is listed 2-5/8 × 3-5/8 slotted to 3 × 3.
- Hole diameter: Blickle prints 9 mm (100 × 85 plates) and 11 mm (140 × 110 plates) and TENTE 9 mm; the Blickle 140 × 110 plate spacing is printed as 105 × 75–80, a range, so no template is drawn for it. TENTE prints the long spacing as '80/77', two values, so the TENTE plate is not drawn. The US listings give only the mounting bolt (5/16 in for Colson / Alco, 3/8 in for Albion), not the hole diameter, so no inch template is drawn.
- Heights are as labelled by each source: Blickle and TENTE 'total height' (mm), the US listings 'mounting height' (floor to the underside of the plate), 'overall height' or 'load height'. These are not the same measure, so do not compare across rows without checking. Offset (swivel lead) is the horizontal distance from the swivel axis to the wheel axle.
- The file is a hole-pattern template: a 100 × 85 mm plate with four Ø9 holes on an 80 × 60 mm rectangle (Blickle LK / BK-ALST 82K, 100K-1, 125K-1). The 100 × 85 plate, 80 × 60 spacing and Ø9 are the published numbers; the 4 mm thickness, 6 mm corner radius and the central 50 × 35 mm aperture are Xem choices. Real plates are pressed steel with a swivel race; none of that is modelled.
- McMaster-Carr's caster category is linked for per-part STEP; nothing is copied. Plate and stem sizes of Jarvis, Albion, Colson, Tente, Blickle and others also vary per series, so check the series you buy.

## Mating features (exact size; open press / slide / run / socket by your process clearance, leave designed and clamp as drawn)

| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| 4 mounting holes Ø9 on 80 × 60 mm rectangle | Ø9.0 through, 4 on 80 × 60 (Blickle LK / BK-ALST 82K, 100K-1, 125K-1; 100 × 85 plate) | bolts or screws through the equipment's matching 80 × 60 tapped or clearance holes (bolt size not printed by the Blickle sheet) | slide | caster-plate-100x85* |

## Sizes

| caster | units | wheel Ø × width | load | height | top plate | bolt hole spacing | hole / bolt | offset |
|---|---|---|---|---|---|---|---|---|
| Blickle LK/BK-ALST 82K | mm | 80 × 40 | 230 kg | 110 | 100 × 85 | 80 × 60 | 9 | 40 |
| Blickle LK/BK-ALST 100K-1 | mm | 100 × 40 | 320 kg | 130 | 100 × 85 | 80 × 60 | 9 | 45 |
| Blickle LK/BK-ALST 100K-3 | mm | 100 × 40 | 320 kg | 130 | 140 × 110 | 105 × 75–80 | 11 | 45 |
| Blickle LK/BK-ALST 125K-1 | mm | 125 × 40 | 350 kg | 155 | 100 × 85 | 80 × 60 | 9 | 48 |
| Blickle LK/BK-ALST 125K-3 | mm | 125 × 40 | 350 kg | 155 | 140 × 110 | 105 × 75–80 | 11 | 48 |
| Blickle LK/BK-ALST 127K | mm | 125 × 54 | 450 kg | 170 | 140 × 110 | 105 × 75–80 | 11 | 55 |
| Blickle LK/BK-ALST 150K | mm | 150 × 50 | 500 kg | 197 | 140 × 110 | 105 × 75–80 | 11 | 60 |
| Blickle LK/BK-ALST 160K | mm | 160 × 50 | 580 kg | 202 | 140 × 110 | 105 × 75–80 | 11 | 60 |
| Blickle LK/BK-ALST 180K | mm | 180 × 50 | 600 kg | 223 | 140 × 110 | 105 × 75–80 | 11 | 65 |
| Blickle LK/BK-ALST 200K | mm | 200 × 50 | 600 kg | 245 | 140 × 110 | 105 × 75–80 | 11 | 62 |
| TENTE ALPHA 8370PJD100P62 | mm | 100 | 80 kg (160 static) | 128 | 105 × 85 | 80/77 × 60 | 9 | 35 |
| Blickle LMDA-TPA 50G / 50K-FK (central bolt hole) | mm | 50 × 2×19 | 80 kg | 71 | Ø41 round | single central hole | 10.2 | 31 |
| Blickle LMDA-TPA 75G / 75K-FK (central bolt hole) | mm | 75 × 2×25 | 100 kg | 98 | Ø55 round | single central hole | 10.2 | 34 |
| Colson 2.03256.441 (Global Industrial) | in | 3-1/2 × 1-1/4 | 250 lb | 4-11/16 (overall) | 2-1/2 × 3-5/8 | 1-3/4 × 2-13/16, slotted to 3-1/16 | 5/16 bolt (hole not printed) | not printed |
| Colson 2.03356.42 (Access Casters) | in | 3 × 1-1/4 | — | 4-1/8 (mounting) | 2-1/2 × 3-5/8 | 1-3/4 × 3 | not printed | not printed |
| Colson 4P20PFS (Access Casters) | in | 4 × 1-1/4 | — | 5-1/4 (mounting) | listing says 2-1/2 × 3-5/8 'to plate', not labelled as plate size | 1-3/4 × 3 | not printed | not printed |
| Colson 2.05256.445 (Access Casters) | in | 5 × 1-1/4 | — | 6-3/16 (mounting) | 2-1/2 × 3-5/8 | 1-3/4 × 3 | not printed | not printed |
| 5 in caster (Alco Sales 41109-TG) | in | 5 × 1-1/4 | — | 6-1/4 (load height) | 2-3/8 × 3-5/8 | 1-3/4 × 2-3/4, slotted to 3 | 5/16 bolt (hole not printed) | not printed |
| Albion 18XS04228S (CasterHQ) | in | 4 × 2 | — | 5.63 (mounting) | 4 × 4-1/2 | 2-5/8 × 3-5/8, slotted to 3 × 3 | 3/8 bolt (hole not printed) | 1-11/16 |

## Where the files are

- Blickle (via Raptor Supplies datasheet): [LK-ALST / BK-ALST / BH-ALST pressed-steel castors: wheel diameter and width, total height, top plate size, bolt hole spacing, bolt hole diameter, offset (82K to 200K)](https://static.raptorsupplies.com/catalog/product/datasheet/blickle-bk-alst-100k-1.pdf) — web — Maker datasheet; numbers only
- Blickle (via Raptor Supplies datasheet): [LMDA-TPA 50 / 75 castors with central bolt-hole fitting: wheel diameter, total height, plate diameter, bolt hole diameter, offset](https://static.raptorsupplies.com/catalog/product/datasheet/blickle-lmda-tpa-50k-fk.pdf) — web — Maker datasheet; numbers only
- TENTE (via RS Components datasheet): [ALPHA swivel castor 8370PJD100P62: wheel 100, plate 105 x 85, bolt hole spacing 80/77 x 60, hole 9, height 128, offset 35](https://docs.rs-online.com/1d01/A700000012772822.pdf) — web — Maker datasheet; numbers only
- Global Industrial (listing of Colson 2.03256.441): [Colson 2 Series swivel plate caster: plate 2-1/2 x 3-5/8, bolt spacing 1-3/4 x 2-13/16 slotted to 3-1/16, mounting bolt 5/16](https://www.globalindustrial.com/p/2-series-swivel-plate-caster-203256441-rubber-on-polyolefin-3-1-2dia-250-lb-cap) — web — Retailer listing; numbers only
- Access Casters (listing of Colson 2.03356.42): [3 in Colson caster: plate 2-1/2 x 3-5/8, bolt hole spacing 1-3/4 x 3, mounting height 4-1/8](https://accesscasters.com/2-03356-42-3-inch-colson-caster-with-hi-tech-rubber-wheel.aspx) — web — Retailer listing; numbers only
- Access Casters (listing of Colson 4P20PFS): [4 in Colson caster with Performa rubber wheel: bolt hole spacing 1-3/4 x 3, mounting height 5-1/4](https://accesscasters.com/4p20pfs-4-swivel-caster-with-colson-4-performa-rubber-wheel) — web — Retailer listing; numbers only
- Access Casters (listing of Colson 2.05256.445): [5 in Colson caster: plate 2-1/2 x 3-5/8, bolt hole spacing 1-3/4 x 3, mounting height 6-3/16](https://accesscasters.com/2-05256-445-5-inch-colson-caster-with-performa-rubber-wheel.aspx) — web — Retailer listing; numbers only
- Alco Sales (listing 41109-TG): [5 in caster: top plate 2-3/8 x 3-5/8, bolt hole spacing 1-3/4 x 2-3/4 slotted to 3, mounting bolt 5/16, load height 6-1/4](https://alcosales.com/products/41109-tg.asp) — web — Retailer listing; numbers only
- CasterHQ (listing of Albion 18XS04228S): [Albion 4 x 2 swivel caster: plate 4 x 4-1/2, bolt hole pattern 2-5/8 x 3-5/8 slotted to 3 x 3, mounting height 5.63, offset 1-11/16, swivel radius 3-11/16, mounting bolt 3/8](https://casterhq.com/products/albion-casters-4-x-2-maintenance-free-swivel-caster-with-flat-performance-rubber-wheel-and-4-x-4-5-plate-high-durability-smooth-operation-model-18xs04228s) — web — Retailer listing; numbers only
- McMaster-Carr: [Casters (plate, stem, bolt-hole) (free STEP/IGES per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/casters/) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link)

## Questions

**What is the plate size of a Colson 2-series caster?**

2-1/2 × 3-5/8 in on the Colson listings read (one retailer prints 2-3/8 × 3-5/8 for a similar 5 in caster); bolt spacing 1-3/4 × 3 in, or 1-3/4 × 2-13/16 / 2-3/4 slotted.

**What bolt pattern does a 4 × 4-1/2 in caster plate have?**

2-5/8 × 3-5/8 in, slotted to 3 × 3 in, on the Albion listing read; the hole diameter is not printed (3/8 in bolt).

**What hole pattern do Blickle 100 × 85 mm caster plates have?**

Four Ø9 mm holes on an 80 × 60 mm rectangle (82K, 100K-1, 125K-1).

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