Timken
⌀21.43
21.43 × 45.24 × 15.49 mm
Load C
28.9 kN
Speed
7,000
Weight
0.09 kg

The Timken LM12748/LM12710 is a small size tapered roller bearings with ISO dimensions 21.43×45.24×15.49 mm. Bearings in the 21.43mm bore range are commonly used in car wheel hubs, light truck gearboxes, forklift axles, differentials. This is an open type, requires periodic lubrication, suitable for clean environments variant. Timken USA — inventor of tapered roller bearings, world leader in heavy-load bearings — 6 equivalent brands available under ISO designation LM12748/LM12710.

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Timken LM12748/LM12710

Tapered Roller Bearings — 21.43×45.24×15.49 mm — ISO LM12748/LM12710

Dimensions
Bore Diameter (d)21.43 mm
Outside Diameter (D)45.24 mm
Width (B)15.49 mm
Dynamic Load Rating (C)28.9 kN
Static Load Rating (C₀)21.4 kN
Limiting Speed (grease)7,000 rpm
Mass0.09 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
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Technical Specifications

Full specifications for Timken LM12748/LM12710 per OEM catalog.

Bore Diameter (d)21.43 mm
Outside Diameter (D)45.24 mm
Width (B)15.49 mm
Dynamic Load Rating (C)28.9 kN
Static Load Rating (C₀)21.4 kN
Limiting Speed (grease)7,000 rpm
Mass0.09 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO LM12748/LM12710 — interchangeable dimensions.

BrandPart Number
TimkenLM12748/LM12710
fagLM12748/LM12710
nskLM12748/LM12710
ntnLM12748/LM12710
skfLM12748/LM12710
zvlLM12748/LM12710
koyoLM12748/LM12710
nachiLM12748/LM12710

* C/C₀ may vary ±5% across manufacturers.

Compare LM12748/LM12710 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
TimkenLM12748/LM1271021.43×45.24×15.4928.921.4Current
FAGLM12748/LM1271021.43×45.24×15.4929.2—View
KoyoLM12748/LM1271021.43×45.24×15.4928—View
NACHILM12748/LM1271021.43×45.24×15.4928.3—View
NSKLM12748/LM1271021.43×45.24×15.4928.6—View
NTNLM12748/LM1271021.43×45.24×15.4928.6—View
SKFLM12748/LM1271021.43×45.24×15.4928.6—View
ZVLLM12748/LM1271021.43×45.24×15.4928.6—View

FAQ — Timken LM12748/LM12710

Quick answers to common questions.

Timken LM12748/LM12710 có kích thước d×D×B = 21.43×45.24×15.49 mm theo tiêu chuẩn ISO. Đường kính trong d = 21.43 mm, đường kính ngoài D = 45.24 mm, chiều rộng B = 15.49 mm.

Common Applications

AutomotiveForklifts

Tapered Roller Bearings with 21.43mm bore diameter are commonly used in car wheel hubs, light truck gearboxes, forklift axles, differentials.

Learn More

Tapered Roller Bearings: Construction, Pair Mounting & Clearance Adjustment

A tapered roller bearing uses conical rollers to handle heavy combined radial and axial loads through contact angles of 10°–30°. This guide covers cone/cup construction, O/X pair mounting, preload adjustment — sourced from Timken, SKF, ZVL catalogs and ISO 355.

Explore More

Type
All Tapered Roller Bearings
Brand
Timken Bearings
Combined
Timken
Catalog
15,800+ Products

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Timken LM12748/LM12710
21.43×45.24×15.49 mm
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